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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How does a laser printer control the laser to produce such high resolutions?

I opened up a broken laser printer yesterday to find one of the important sections (this is an example photo from Google Images), trying to learn from the design of the laser+polygon mirror motor within: I was able to find the pinout of the driver…
sasha
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Is there something such as an infinite potentiometer?

I am trying to find a component, that, similar to a potentiometer, delivers an analog output, but which can be turned indefinitely in a single direction. I have tried searching for something like this, but I never quite found anything that does what…
Busti
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How does a ball mouse know the direction?

Foreach axis on a mechanical (ball) mouse there is an IR transmitter and receiver pair with a wheel that looks like having only simple slits. How is the direction calculated?
zaf
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What is the meaning of this datasheet diameter notation?

I am reading this datasheet and I want to drill the correct size hole into the board and I am confused what 5-ø1.2 means. I can't understand what the 5 and - sign mean? Your help would be greatly appreciated.
Mick Kelly
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Tracking rotation with extremely high accuracy

I would like to track the angular position of a fairly slow motorized rotating arm (direct-drive; see illustration below) -- but require angular accuracy of under 0.05°, and similar resolution. As @gbulmer noted in the comments, that is equivalent…
sasha
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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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Rotary Encoder Detents

I've seen rotary encoders that you can get with and without detents (example). What are detents in the context of rotary encoders? When would you want / need your encoder to include this feature in a design?
vicatcu
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What is the purpose of 8b/10b encoding?

In the physical layer of USB 3.0 there is an 8b/10b encoder. Wikipedia says that this eliminated DC offset, while the tutorial I am reading says it is a common encoding scheme in high-speed serial designs What is the purpose of this encoding in…
Vorac
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How to achieve very accurate/fine rotation with motor

I am running an experiment where I need to rotate a lightweight dial (<5 grams, so very low torque requirement, and fairly slowly), but need to do very accurate, fine steps of 0.03 degrees. Something like this (shown as direct-drive here, but I'm…
boardbite
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Weird servo mechanism

I want to use a servo taken by a radio-controlled car. However, I found out that wheels' rotation (front wheels) is not performed by a servo, but from a motor to move the wheels and a mechanism for control, into a steering box. Specifically, there…
dempap
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What is the advantage of differential Manchester

I can see the advantage of Manchester code over NRZ: you get clock and data in one signal combined. But what does differential Manchester add to that?
amadeus
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How to have custom keyboard scancode set

I'm new to the hardware field in general. For one project I'm trying to create a custom keyboard that will have some extra keys, say 20-25 more than a standard keyboard. I've read about scan codes and scan code sets. I've also read about keyboard…
Vivek
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Using a LED to transmit data

I am curious about the possibilities offered by LEDs to transmit data over a short range (2 or 3 meters), and what maximum data transmission rate can be expected from carefully chosen, but consumer-grade components. I am interested in a minimal…
oparisy
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Can I use a motor as a rotary encoder?

Let me preface this by saying that I'm not an expert, nor do I conclusively understand how op-amps work, but I have a strong suspicion that this should be possible, at least crudely. I have this idea that by using op-amps to measure the voltage…
Isaac Walters
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Implementing line propagation delay compensation for BiSS master in software

Following up on a question I asked some time ago: Simple Implementation of BiSS C interface for a position encoder. I have implemented a simple BiSS master (point to point) to communicate with an encoder. At frequencies below 2 MHz and short cable…
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