Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [encoder]

An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed, secrecy, security or compressions

An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed, secrecy, security or compressions.

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What advantages do the absolute encoders gain by employing Gray code transmission instead of binary code?

I have read about the Gray code, but in practice I don't get what is the advantage of it over the binary code. Some absolute encoder manufacturers offer both types so one has to decide before buying one. I for example need to measure the rotation…
user1245
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Is there a 16 to 4 one-hot simple encoder IC chip?

I'm looking for a chip that has 16 inputs where if only one of the inputs go high then it encodes the data to a 4 bit output. If one doesn't exist what would be the simplest way to build such a circuit?
David
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Determine the position of a ball joint by image processing

I am wondering if it is possible to sense the position of a ball joint using: A photodiode array from an optical mouse, embedded in the socket A specific pattern deposited onto the ball A processor that can use the exposed part of the pattern to…
finnw
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How does sin/cos encoder increase the resolution of an incremental encoder?

Is it possible to explain the advantage of sin/cos encoder when used together with an incremental encoder? Here is a related paper but I don't understand how does it improve accuracy. I basically don't get what interpolation is and how does it help…
floppy380
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Adding indicator LED to optointerruptor circuit?

This question relates to my earlier question on how to wire an optointerruptor:Figuring out wiring of optical encoder I was able to get the optointerruptor working using the circuit below. I wanted to add an LED to indicate sensor state. The blue…
spring
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Figuring out wiring of optical encoder

I have a linear peristaltic pump (salvaged from medical equip. - likely used for dosing, etc). It uses a stepper motor and an optical shaft encoder. I have the motor working but I am confused about getting the wiring for the encoder sorted out. I've…
spring
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Sine/Cosine encoder: Fine position interpolation

In a sine/cosine encoder, position information is encoded in two 90 degree phase shifted sinusoidal signals. Typically, the approach to decode this information is by generating a coarse quadrature signal and sum a finer position information,…
user275717
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PIE vs Manchester Coding

Why is Manchester encoding preferred to PIE(Pulse Interval Encoding) for applications were data is transferred through inductive coupling? For transmission of data and power through wireless medium (other than inductive coupling) will PIE be better…
Mike George
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Non-systematic (7, 4) Hamming code encoder

I have to do the scheme of the non-systematic Hamming code encoder (not cyclic but classic). But I have not found any source where it would be written how to build a generating matrix and create a system of linear equations for finding symbols of…
alexhak
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Magnet encoder accuracy problem

I am using a magnet encoder chip AS5147 and I chose to use SPI to read the output position of a gearbox connected to a motor. The position resolution is claimed to be 14-bit when using SPI reading. A button magnet was mounted on the output gear…
roTor-roTor
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What is Virtual Encoder?

What is Virtual Encoder and how does it work? I found this phrase in swing gate operator (FAAC s418)datasheet. It says above "New control board with anti-crushing system and virtual encoder for inversion on obstacles". ( but not in datasheet)
BartholomeusR
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Help me to determine absolute encoder parameters

I see this encoder on the internet (SRM50-HFA0.) I need to know: What is the difference between "sine/cosine periods per revolution" and "number of the absolute ascertainable revolutions?" What are the "total number of steps"/"integral…
John Jin
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Confused with the time diagram and wiring for this SSI interface

I have an AEAT-6010/6012 10/12-bit magnetic absolute encoder and it has the following pin-outs: Since it is SSI but not SPI I dont use the CSn output and leave it. I supply 5V to the encoder and clock it between 60kHz up to 100kHz but I dont get…
user1245
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Are there Multi-Turn Absolute Encoders that Store the Number of Turns in Non-Volatile Manner?

I have been learning about absolute encoders, and am testing a multi-turn absolute encoder (link to datasheet is here). During testing, I realized that after shutting down the power, although the encoder position is saved, the number of turns is…
Cherry
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Rotary encoder sensor

Is there a way to get reading from rotary encoder without microcotroller? just simple circuit that count and increment, like op amp or 555 timer or logic gate . anything that u can help me .
Tareq
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