Can a Piezoelectric Sensor Detect Hand Movements?

  • Context: High School 
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    Accelerometer
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Discussion Overview

The discussion centers around the feasibility of using a piezoelectric sensor to detect hand movements, with participants exploring alternatives such as accelerometers for tracking motion during various activities like sports. The scope includes practical applications and considerations for sensor size and functionality.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Experimental/applied

Main Points Raised

  • One participant inquires about the suitability of a piezoelectric sensor for detecting hand movements, expressing limited knowledge about electrical components.
  • Another participant suggests using accelerometers, specifically mentioning models like the Analog Devices ADXL202 and Memsic MXD2125.
  • A participant seeks clarification on the size of the suggested accelerometers, asking if they are small enough for their intended use.
  • One participant expresses a need to understand the purpose of the sensor application, prompting a clarification about tracking hand movements during sports activities.
  • A participant indicates a preference for smaller motion sensors, noting that the accelerometers may be too large for their needs.
  • Another participant shares a link to a project that may offer a simpler solution for motion tracking.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best sensor to use, with multiple competing views regarding the suitability of piezoelectric sensors versus accelerometers and the size considerations for these devices.

Contextual Notes

The discussion reflects uncertainty regarding the specific requirements for sensor size and functionality, as well as the appropriateness of different sensor types for the intended applications.

Who May Find This Useful

Individuals interested in motion tracking technology, particularly in sports applications, as well as those exploring sensor options for small-scale projects.

T.O.E Dream
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I need something small to put on my hand to that can detect movement. I've been thinking of a piezoelectric sensor but I don't know much about them (I don't know much about anything electric). Can I use this to detect movements in my hand?
 
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Google it. Accelerometers: Analog Devices ADXL202, Memsic MXD2125.
 
I googled them but i need to get a picture of how big these accelerometers are. For example are they peanut sized or bigger?
 


I think this is helpful.
 
Last edited by a moderator:
It seems late to ask, but: "What's it for?"
 
Basically I want to track my hand movements when doing different activities such as shooting a basketball, or swinging a baseball bat.
 
Actually I think I'm going to need just small motion sensors. I'm going to put one that measures horizontal movements and one that measures vertical movement put the problem with the accelerometers is that it's too big.
 
This might be easier
http://johnnylee.net/projects/wii/
 

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