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Incremental encoder phase alignment - Database & Sql Blog Articles
2023 / 05 / 10
Incremental encoder phase alignment - Database & Sql Blog Articles Factory direct 0805 red light quality absolutely guaranteed price absolute advantage Programmable Package SG-8018CA(SG7050C) 0.67M~170M AD brand ADUM1402ARWZ special treatment original imported absolutely original
Distinction between incremental encoder and absolute encoder
2023 / 05 / 09
Distinction between incremental encoder and absolute encoder Encoders can be divided into incremental pulse encoders: SPC and pulse encoders: APC based on the signal principle. Both are generally applied to the detection elements of speed control or position control systems. The distinction between incremental encoders and encoders. An encoder is a device that generates an information expression form according to a given code. It is a device that compiles and converts signals (such as bit streams) or data into signal forms that can be used for communication, transmission, and storage. It is a device that compiles and converts signals (such as bit streams) or data into signals that can be used for communication, transmission, and storage. Here, I recommend several encoders for you to facilitate your purchase. SM-D2100MPEG2 single-channel encoder is an easy-to-use, powerful MPEG-2 encoder. Supports various standard video and audio signals, including analog component S-VIDEO, analog composite video, and mono or analog stereo. The compressed data output format is ASI / SPI. Compression method MPEG-2MP @ ML, the
CAN bus interface of absolute photoelectric shaft encoder
2023 / 04 / 24
CAN bus interface of absolute photoelectric shaft encoder CAN bus interface of absolute photoelectric shaft encoder 1 Introduction The absolute photoelectric shaft angle encoder is a digital angle measuring device that measures the angular position and angular velocity of the rotating shaft in real time. It converts the shaft angle information into digital codes in the form of degrees, minutes and seconds, and the Bus connection can realize real-time measurement. It has the advantages of high working reliability, strong anti-interference ability, high precision, power-off memory and so on. It is widely used in digital measurement tracking and positioning systems such as shooting range equipment, digital theodolite, radar and some large military equipment. In these practical application control systems, due to the different data structures of the sensors and detectors of each subsystem, the absolute photoelectric shaft encoder will use different internal data communication methods, mainly including RS232, RS485 / 488 serial ports, parallel ports, etc. . However, in specific engineering applications, the above communication methods are often limited by transmission distance and communication rate. In recent years, serial communication has developed rapidly, and a variety of control system field bus forms have emerged. The CAN bus is one of the most widely used. It is the abbreviation of controller local area network bus and is an effective support for distributed control and
Distinction between incremental encoder and absolute encoder
2023 / 04 / 08
Distinction between incremental encoder and absolute encoder Encoders can be divided into incremental pulse encoders: SPC and pulse encoders: APC based on the signal principle. Both are generally applied to the detection elements of speed control or position control systems. The distinction between incremental encoders and encoders. An encoder is a device that generates an information expression form according to a given code. It is a device that compiles and converts signals (such as bit streams) or data into signal forms that can be used for communication, transmission, and storage. It is a device that compiles and converts signals (such as bit streams) or data into signals that can be used for communication, transmission, and storage. Here, I recommend several encoders for you to facilitate your purchase. SM-D2100MPEG2 single-channel encoder is an easy-to-use, powerful MPEG-2 encoder. Supports various standard video and audio signals, including analog component S-VIDEO, analog composite video, and mono or analog stereo. The compressed data output format is ASI / SPI. Compression method MPEG-2MP @ ML, the
Whole Sales Incremental 38mm Magnetic Rotary Encoder
2023 / 03 / 24
Whole Sales Incremental 38mm Magnetic Rotary Encoder Model NO.: 3808 Package: SMD Installation Form: Axle Sleeve Type Axonia: Synchronous Flange Type Rotary Encoder: 38mm Trademark: cnruihua Transport Package: Carton Specification: ce rohs Model NO.: 3808 Package: SMD Installation Form: Axle Sleeve Type Brand: Cnruihua Axonia: Synchronous Flange Type Rotary Encoder: 38mm Trademark: cnruihua Transport Package: Carton
From incremental encoder to absolute multiturn encoder - News - Global IC Trade Starts Here.
2023 / 03 / 23
From incremental encoder to absolute multiturn encoder - News - Global IC Trade Starts Here. Factory direct 0805 red light quality absolutely guaranteed price absolute advantage Programmable Package SG-8018CA(SG7050C) 0.67M~170M AD brand ADUM1402ARWZ special treatment original imported absolutely original
From incremental encoder to absolute multiturn encoder - News - Global IC Trade Starts Here.
2023 / 03 / 18
From incremental encoder to absolute multiturn encoder - News - Global IC Trade Starts Here. Factory direct 0805 red light quality absolutely guaranteed price absolute advantage Programmable Package SG-8018CA(SG7050C) 0.67M~170M AD brand ADUM1402ARWZ special treatment original imported absolutely original
How to Perform Quadrature Encoder Measurements
2023 / 02 / 07
Based on PC data acquisition, measurement is performed through a combination of modular hardware, application software, and a computer. Although data acquisition systems have different definitions based on different application requirements, the purpose of each system to collect, analyze, and display information is the same. The data acquisition system integrates signals, sensors, actuators, signal conditioning, data acquisition equipment, and application software. Encoder and Application Overview <br> The encoder is an electromechanical device that can be used to measure mechanical motion or target position. Most encoders use optical sensors to provide electrical signals in the form of pulse trains, which in turn can be converted into motion, direction, or position information. Rotary encoders can be used to measure the rotational movement of the shaft. Figure 1 shows the basic components of a rotary encoder, including a light emitting diode (LED), a code wheel, and a light sensor on the back of the code wheel. This code wheel is placed on a rotating shaft with opaque and light-transmitting fan-shaped areas arranged in an encoded form. When the code wheel rotates, the opaque sectors block light, and the light-transmitting sectors allow light to pass through. This produces square-wave pulses that can be compiled into corresponding position or motion information. The encoder is usually divided into 100 t
Servo motor encoder absolute and incremental difference
2023 / 01 / 23
An encoder is a device that compiles and converts a signal (such as a bit stream) or data into a form that can be used for communication, transmission, and storage. The encoder converts an angular displacement or a linear displacement into an electrical signal, the former being called a code wheel and the latter being called a code ruler. According to the readout mode, the encoder can be divided into contact type and non-contact type; according to the working principle, the encoder can be divided into two types: incremental type and absolute type. The incremental encoder converts the displacement into a periodic electrical signal, which is then converted into a counting pulse, and the number of pulses is used to represent the magnitude of the displacement. Each position of the absolute encoder corresponds to a certain digital code, so its indication is only related to the start and end positions of the measurement, regardless of the intermediate process of the measurement. Incremental servo motor encoder introduction Incremental coding In addition to the ABZ signal of the ordinary encoder, the incremental servo encoder also has a UVW signal. Most of the domestic and early imported servos use this form, and the lines are more.
2022 / 11 / 18
Absolute encoder The rotary incremental encoder outputs a pulse when it is rotated, and its position is known by the counting device. When the encoder is not moving or power is off, the internal memory of the counting device is used to remember the position. In this way, when the power is off, the encoder can't have any movement. When the caller works, the encoder can not interrupt and lose the pulse during the output pulse. Otherwise, the zero point of the counting device will shift, and this bias The amount of shift is unknown, and only the wrong production result can be known. The solution is to increase the reference point, and the encoder corrects the reference position into the memory position of the counting device every time the encoder passes the reference point. Before the reference point, the accuracy of the position cannot be guaranteed. For this reason, in the industrial control, there are methods such as finding a reference point for each operation, and starting to change the zero. For example, the positioning of the printer scanner is the incremental encoder principle. Every time we turn it on, we can hear a bang, it is looking for the reference zero, and then it works. This method is more troublesome for some industrial control projects, and even does not allow booting to change to zero (you must know the exact position after booting), so there is an absolute encoder.
Reflective encoder technology for portable medical device design
2022 / 10 / 25
Reflective encoder technology for portable medical device design In the past few years, many semiconductor companies have gradually focused on the medical device market. Emerging application trends in the medical field are increasingly demanding technology, and designers are beginning to develop highly competitive products for a variety of needs. For example, the demand for home medical equipment is growing very fast. This is in line with two trends: the public's awareness of the advantages of self-management medical care is becoming more common, and outpatient treatment is less expensive than hospitalization. These trends are continuing to drive healthcare companies to develop products that are easier to carry, less expensive, and easier to use. Currently, there are many different diagnostic and therapeutic devices in the outpatient treatment market, such as dialysis equipment, portable insulin pumps, insulin inhalers and diabetes management systems. The emergence of these self-service medical devices has also prompted device manufacturers to introduce innovative products. Therefore, product designers are all looking for new component products that can support innovative thinking and future medical product development trends and can meet the rapid market development strategy. In particular, the miniature reflective encoder technology has become an effective boost for portable medical device manufacturers to break through existing accuracy, power consumption, size
Application of High Precision Rotary Encoder in Servo Feedback Positioning System
2022 / 10 / 21
It is basically a double brush orthogonal unbounded potentiometer. It has a full circular ring of resistive material that is electrically connected at both ends where two electrically independent brushes move. The two brushes are mechanically connected to each other by a 90° angle. Rotary encoders are often used in positioning systems with servo feedback. In this case, the cost of the encoder is generally not important. However, the encoder can also be used to encode the position of knobs on some user interfaces, such as the volume knob on an audio system. For these knobs, potentiometers can be selected for low-cost, high-precision, and absolute-reading values, but their travel is limited, typically to less than 340°, or optomechanical rotary encoders are available. Their travel is not limited, but the price High, low accuracy, only relative readings. This design example attempts to combine the two, with the advantages of the potentiometer, as well as the characteristics of the optical machine rotary encoder boundaryless operation. The encoder uses the structure technology of the standard potentiometer, so it is easy to produce. It is basically a double brush orthogonal unbounded potentiometer. It has a full circular ring of resistive material that is electrically connected at both ends where two electrically independent brushes move. The two brushes are mechanically connected to each other by a 90° angle (Figure 1). The AD
Servo motor phase and encoder position adjustment
2022 / 08 / 24
Servo motor phase and encoder position adjustment The mainstream servo motor position feedback components include incremental encoders, absolute encoders, sine and cosine encoders, and resolvers. Phase Alignment of Incremental Encoders In this discussion, the output signal of an incremental encoder is a square wave signal, and it can be divided into an incremental encoder with a commutation signal and an ordinary incremental encoder. Ordinary incremental encoders have two-phase orthogonal square-wave pulse output signals A and B, and zero-bit signal Z; in addition to the ABZ output signal, incremental encoders with commutation signals have a mutual difference of 120 degrees. The number of revolutions per revolution of the electronic commutation signal coincides with the number of pairs of magnetic poles of the motor rotor. The alignment of the phase of the UVW electronic commutation signal of the incremental encoder with a commutation signal and the phase of the rotor pole or the phase of the electrical angle is as follows: 1. Use a DC power supply to pass the motor's UV winding with a DC current less than the rated current, U in, V out, and orient the motor shaft to an equilibrium position; 2. Observe the U-phase signal and Z-signal of the encoder with an oscilloscope. According to the convenience of operation, adjust the relative position of the encoder shaft and the motor s
Decarburization pump incremental transformation
2022 / 08 / 16
Decarburization pump incremental transformation Abstract: Through the reformation of centrifugal pump impeller structure, increasing the flow, raising the lift, meeting the production requirements. Key words: Centrifugal pump to improve traffic flow Decarburization system in our workshop adopts hot potash method to remove CO2 in low volatility to provide qualified hydrogen-nitrogen mixture for ammonia synthesis and at the same time provides CO2 gas with purity greater than 98% for urea production. The solution circulation mainly by decarbonization pump to provide energy. Over the years, the system load is low, the required flow is less than 200m3 / h, far less than the design capacity of the pump 480m3 / h. In order to reduce power consumption, in 92 years its impeller cylindrical cutting, the effect is good. However, since the first phase of the 81 August fertilizer program was put into operation in 1999, the required flow rate increased to 240 m3 / h. According to the reconstruction team's calculation, the large pump impeller was restored to the original large impeller, basically meeting the production requirements at that time. When the second phase of fertilizer "8 · 13" was put into operation in 2001, the required flow rate increased to 280m3 / h. At this moment, the problem is exposed, the flow of large pump can not be increased any more, the liquid-liquid phenomenon appears in the atmospheric tower, Production is very unstable, the load is difficult to increase. In order to solve this bottlenec
Hardware Design of Video Encoder Based on DM365
2022 / 08 / 13
Hardware Design of Video Encoder Based on DM365 Abstract: In order to solve some problems in the standard definition monitoring system, a high-definition video compression system based on TMS320DM365 is designed. Adopting ITU-T H. 264 (DM365 embedded hardware compressor) video compression algorithm, high-definition analog video signal is converted into digital video signal by dedicated video decoding chip TVP7002, data compression in DM365, embedded ARM data is packaged and transmitted to the internet, through PC Software decoding for video playback. Practice has proved that this coding scheme has completed the data compression and transmission well and meets the design requirements. Keywords: video compression; DM365; H. 264; network transmission In video surveillance applications, traditional video surveillance has a high image clarity (CIF to D1 resolution), difficulty in managing and maintaining many cables, complicated configuration of many devices, and inconvenient expansion. These factors seriously restrict the security management effectiveness. Enhancement, but also brings an opportunity for the development of high-definition video surveillance, this paper discusses the hardware design of HD video encoder based on DM365. 1 Hardware platform overall design TMS320DM365 continues the architecture of the DavinciTM family DM355 processor, integrating an ARM926EJ-S core, an image processing subsystem (VPSS), an H. 264 HD encoder coprocessor HDVICP and an MPEG-4/JPEG HD enc
Pump decoupling solution problem analysis and incremental reform
2022 / 08 / 04
Pump decoupling solution problem analysis and incremental reform 1 Introduction The decarburization system in our workshop adopts the hot potash method to remove CO2 from the low volatility gas to provide a qualified hydrogen-nitrogen mixture for ammonia synthesis and at the same time provides CO2 gas with purity greater than 98% for urea production. The solution circulation is mainly provided by a solution pump (decarburization pump). The pump from the seventies imported from Japan, the technical parameters in Table 1. The pump performance is good, simple operation, stable operation. Especially MVB2830B type supporting motor, stable operation, the use of over 20 years has never been overhauled. Over the years, due to the low system load, the normal process flow required for less than 200m3 / h, much less than the pump design capacity of 480m3 / h. In order to reduce power consumption, in 92 years its impeller cylindrical cutting, to achieve the use effect. However, since the first phase of fertilizer "8.13" was put into operation in 1999, the required process flow increased to 240 m3 / h. According to the reconstruction group accounting, and the impeller to restore the original large impeller, basically meet the production requirements at the time. In 2001, the second phase of fertilizer "8.13" was put into operation, and the required process flow increased to 280m3 / h. At this time, the problem was prominently exposed, the flow of large pump could no long
Incremental encoder phase alignment - Database & Sql Blog Articles
2022 / 07 / 28
Incremental encoder phase alignment - Database & Sql Blog Articles Factory direct 0805 red light quality absolutely guaranteed price absolute advantage Programmable Package SG-8018CA(SG7050C) 0.67M~170M AD brand ADUM1402ARWZ special treatment original imported absolutely original
Ppt video encoder is not available
2022 / 07 / 13
Ppt video encoder is not available The reason why ppt video encoder is not available: The WMA audio file format you inserted is not compatible with PPT, although a codec is not available. The PPT is compatible with other playback software used on the computer, so it can play audio. Find compatible WMA audio files and use Windows Media Audio to compress sound files. It is usually published on the Internet and downloaded from the Internet. avi, asf, asx, mlv, mpg, wmv insertion method: 1. Using the "Insert Movie" command method in the "Insert" menu of PoerPoint is simple and common, and will not be described here. 2. Use the "Insert Object" command method in the "Insert" menu of PoerPoint 3. Use Insert Control Using this method must ensure that Windows MediaPlayer or RealPlayer player is installed in the system, first insert the video file as a control into the slide, and then modify the control properties to achieve the purpose of playing the video. Proceed as follows: (1) Run the PowerPoint program and open the slide that needs to be inserted into the video file. (2) Open the "View" menu, call up the "Control Toolbox" panel through the "Toolbar" sub-item, and select the "Other Controls" button to click. (3) In the open control options interface, select the "Windows Media Player" option, and then move the mouse to the PowerPoint slide editing area, d
Distinction between incremental encoder and absolute encoder
2022 / 07 / 01
Distinction between incremental encoder and absolute encoder Encoders can be divided into incremental pulse encoders: SPC and pulse encoders: APC based on the signal principle. Both are generally applied to the detection elements of speed control or position control systems. The distinction between incremental encoders and encoders. An encoder is a device that generates an information expression form according to a given code. It is a device that compiles and converts signals (such as bit streams) or data into signal forms that can be used for communication, transmission, and storage. It is a device that compiles and converts signals (such as bit streams) or data into signals that can be used for communication, transmission, and storage. Here, I recommend several encoders for you to facilitate your purchase. SM-D2100MPEG2 single-channel encoder is an easy-to-use, powerful MPEG-2 encoder. Supports various standard video and audio signals, including analog component S-VIDEO, analog composite video, and mono or analog stereo. The compressed data output format is ASI / SPI. Compression method MPEG-2MP @ ML, the
What kind of encoder for marine dredging ship
2022 / 06 / 24
ask: What are the special features of the dredge marine encoders compared to ordinary grade encoders? answer: The encoder for offshore dredging ships is used to control the positioning of the crank arm of the dredging device on the deck, which is different from that in the under-deck and in the control room, but it is exposed to the sea wind salt, water vapor, and high temperature continuous operation environment for a long time. Below, so the standard for the use environment of this encoder is high: First, the corrosion resistance of the shell material against salt and sea breezes. The shell of the encoder with absolute number 9600 is an all-metal aluminum alloy that has undergone a special surface oxidation treatment. Second, the encoder's shell package. Code number 9600 is an absolute value multi-turn encoder housing package. It is an all-metal, screwless, one-time fastening and hermetic packaging technology. This technology can hardly consider the convenience of maintenance. It is generally used in encoders with high return rate. Do not dare to use. The reason why no screws are required, because the screw material is generally different from the aluminum shell, in the sea during the daytime temperature temperat
Incremental encoder phase alignment - Database & Sql Blog Articles
2022 / 06 / 18
Incremental encoder phase alignment - Database & Sql Blog Articles Factory direct 0805 red light quality absolutely guaranteed price absolute advantage Programmable Package SG-8018CA(SG7050C) 0.67M~170M AD brand ADUM1402ARWZ special treatment original imported absolutely original
Encoder working principle and function
2022 / 05 / 28
Encoder working principle and function working principle The German siko encoder consists of a photoelectric encoder with a shaft on the center, which has a circular pass and a dark engraved line. It is read by the photoelectric transmitting and receiving devices, and four sets of sine wave signals are combined into A, B, C, and D. Each sine wave is 90 degrees out of phase (360 degrees relative to a cycle), and the C and D signals are inverted, superimposed on the A and B phases to enhance the stable signal; and another Z phase pulse is output per revolution. Represents the zero reference position. Since the two phases A and B are 90 degrees out of phase, the encoder can be obtained by comparing the A phase before or the B phase to determine the forward and reverse rotation of the encoder, and the zero reference pulse can be used to obtain the zero reference position of the encoder. The material of the encoder code disc is glass, metal and plastic. The glass code disc is deposited on the glass with a very thin engraved line. The thermal stability is good and the precision is high. The metal code disc is directly passed through and the line is not broken. However, due to the certain thickness of the metal, the precision is limited, and its thermal stability is one order of magnitude worse than that of the glass. The plastic code disk is economical, and its cost is low, but the accuracy, thermal stabili
Hantro 8270 1080p encoder (On2)
2022 / 05 / 27
Hantro 8270 1080p encoder (On2) On2 Technologies announces the latest hardware design - the HantroTM 8270 1080p encoder. This new design supports H.264 Baseline, Main and High Profile versions of video, as well as 16Mpixel JPEG still images. The Hantro 8270 requires minimal clock frequency requirements - less than 250MHz for 30fps 1080p video - ideal for low-power chipsets for battery-powered devices and consumer electronics. This article refers to the address: http:// Pre-processing features improve image quality and compression performance The Hantro 8270 integrates proprietary technology for video stabilization and automatic scene change detection. Its video stabilization function compensates for the effects of camera shake, which improves the quality of the captured video. In addition, the new technology analyzes each frame of the original video and then trims and repositions the frame image to remove unwanted motion. Since this process is performed before encoding, the overall compression efficiency can be improved. Automated scene change detection brings significant advantages to real-time video surveillance, multi-camera broadcast and offline transcoding (PVR) applications, which recognize significant content changes and instruct the encoder to insert a keyframe so that Unnecessary compression distortion is removed (these distortions are typically generated in several frames due to the encode
ADASA Launches Portable Tag Encoder PAD3500
2022 / 05 / 15
ADASA Launches Portable Tag Encoder PAD3500 ADASA recently introduced a newly developed portable tag encoder (reader): PAD3500. The product has a barrel structure that houses 500 RFID inlays approximately 1 x 4 inches in size. The PAD 3500 has a small, battery-powered card reader manufactured by RFID engineering firm SkyeTek. Mr. CEOClarke McAllister of ADASA introduced the original intention of researching and developing PAD3500. The PAD3500 can work in any running system and has good compatibility. RFID system end users do not need to worry about whether they need to make changes to existing equipment. The PAD3500 has a built-in wireless connection device to obtain the coding requirements for middleware or device management software for RFID systems. It is also distinguished from the warehouse management software. The EPC code included in each tag ensures that the tag information matches the inventory unit one by one. ADASA teamed with UPM Raflatac, a leading inlay manufacturer, to improve and integrate the functionality of the PAD3500. UPM Raflatac's UHF EPC Gen 2 inlay and the new aluminum antenna OneTenna were used in the test.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.