Basics of a Resolver transformer....

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Discussion Overview

The discussion centers around the basics of resolver transformers, including their operation, how they calculate angle and velocity, and the time it takes for them to lock onto signals. Participants seek to understand the underlying principles and applications of resolvers in various contexts.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant requests a basic explanation of how resolvers work, specifically regarding angle and velocity calculations.
  • Another participant provides links to external resources, including Wikipedia and articles from Analog Devices and Texas Instruments, as potential references for understanding resolvers.
  • A participant inquires about the time it takes for a resolver to lock onto cosine and sine signals and calculate velocity.
  • In response, another participant clarifies that a resolver itself does not perform calculations or locking; these functions are managed by the connected electronics.
  • Further resources are suggested, including a technical book on synchro and resolver conversion, indicating the depth of information available on the topic.
  • Another participant notes that resolvers are analog devices and that the interpretation of signals depends on the interface used, mentioning their application in industrial robotics and the variability in design based on specific needs.

Areas of Agreement / Disagreement

Participants express varying levels of understanding about the operation of resolvers, with some clarifying misconceptions about their functionality. There is no consensus on the specific time it takes for resolvers to lock onto signals, and the discussion remains open regarding the interpretation of resolver signals.

Contextual Notes

Some limitations in the discussion include a lack of detailed assumptions regarding the electronic systems interfacing with resolvers and the specific conditions under which performance metrics, such as locking time, may vary.

Physicslearner500039
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Can somebody please explain me the basics of resolver. How it works? How it calculates angle and velocity? Atleast any proper links. Please help.
 
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Generally how much time does it take for the resolver to lock to the cos and sine signals and calculate the velocity?
 
Physicslearner500039 said:
Generally how much time does it take for the resolver to lock to the cos and sine signals and calculate the velocity?
A resolver is essentially laminated steel and several coils of copper wire arranged in a particular way. It doesn't do calculations, nor does it lock anything - these things are done by whatever electronics are connected to it.

Analog Devices - http://www.analog.com/en/products/a...rs/synchroresolver-to-digital-converters.html
Texas Instruments - http://www.ti.com/lit/an/slyt661/slyt661.pdf
 
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Take a look at; “Synchro and Resolver Conversion, Geoffrey Boyes, Analog Devices, 1980”

You will find a direct link in the Analog Devices list of downloads. See page 31.
ftp://ftp.analog.com/pub/cftl/Technical%20Book%20List.pdf

There is plenty to read in that list.
 
Resolver is an analog device, interpreting the signals all depends on the interface. Here is a Patent on the scheme, worth the read.

Resolver systems are used in industrial robotics, can be quite accurate and fast - but the limit? Each system will be designed to meet the needs of the application.
 

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