Very Accurate Motors: Piezoelectric & Ceramic Motors

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Discussion Overview

The discussion focuses on the exploration of very accurate motors, specifically those utilizing piezoelectric and ceramic principles for both linear and rotary movements. Participants are interested in the potential applications and capabilities of these motors, particularly in achieving movements on the nanometer scale.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant is seeking resources related to very accurate motors that can achieve movements of 1 nanometer, emphasizing the need for both linear and rotary capabilities.
  • Another participant mentions "inchworm" actuators, suggesting they may be relevant to the discussion.
  • A follow-up comment expresses curiosity about rotary motors, questioning their torque capabilities and practical applications beyond simple rotation on silicon wafers.
  • A different participant introduces the concept of magnetostriction, noting that certain piezoelectric materials can twist under applied voltages, although they do not provide detailed information on this topic.

Areas of Agreement / Disagreement

Participants have not reached a consensus, and multiple competing views regarding the types of motors and their functionalities remain. There is uncertainty about the practical applications of rotary nanomotors and the effectiveness of piezoelectric materials in this context.

Contextual Notes

Some limitations include a lack of detailed technical specifications regarding the torque of rotary nanomotors and the specific capabilities of the mentioned piezoelectric materials. The discussion also reflects varying levels of familiarity with the technologies involved.

iii
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I am searching in google after professors websites or articles \ papers or video lectures in very accurate motors (1 nanometer), that use the principles of piezoelectric and ceramic motor movement, that can move in linear and rotate movement and they are rapid, and very small, if you know about good websites in this area so I will glad to know about that
 
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"Inchworm"+"actuator."
 
Bystander said:
"Inchworm"+"actuator."
That thing is astounding! I wonder, though, if anything of a rotary nature (as iii mentioned as part of the question) exists? I've seen "nanomotors" that just rotate on or in a silicon wafer, but can they actually be connected to anything in order to be useful? My concern is that there can't be a lot of torque there.
 
"Rotary?" See "magnetostriction." There are "cuts" of quartz crystals, and other piezoelectric materials, that will actually "twist" under applied voltages. Don't ask me for details --- that was a "dead end" technical work-around on which very little time was spent a very long time ago.
 

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