To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.roboticsOpen lugnet.robotics in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / 9214
9213  |  9215
Subject: 
Re: FIber-optic rotation sensor
Newsgroups: 
lugnet.robotics
Date: 
Tue, 21 Dec 1999 18:24:48 GMT
Viewed: 
798 times
  
Dennis, You are absolute correct.  No brain cell problems on this issue.

I can't remember the part about Mario, but it makes sense..

Jin Sato has used these on the front legs of his Mibo dog to determine motion.  He
knows the direction that he is moving the motor, so the lack of direction
information was "worked around"  in software.

-Phil

Dennis Clark wrote:

In lugnet.robotics, David Paule writes:
The fiber-optic device and a light sensor can be rigged to detect at least two
distinct rotation positions of an axle.
[snip]

  I believe it was Mario that described a way to use the FO device as a
rotation detection unit all by itself.  Apparently as a side-effect of the
rotation the FO device can toggle the pulse counter as well.  It can't detect
direction like the true rotational sensor, but it apparently can detect
rotation - counting clicks may then allow you to fix end-point stops.

  Does anyone else verify what I just said or is my memory shot?

DLC



Message has 1 Reply:
  Re: FIber-optic rotation sensor
 
It was not me to discover it, but it's definitely doable. You can use the fiber-optic device as a rotation sensor and it works pretty well. As Dennis and Phil said, the only point is that you cannot detect the direction, but in many cases you (...) (25 years ago, 22-Dec-99, to lugnet.robotics)

Message is in Reply To:
  Re: FIber-optic rotation sensor
 
(...) [snip] I believe it was Mario that described a way to use the FO device as a rotation detection unit all by itself. Apparently as a side-effect of the rotation the FO device can toggle the pulse counter as well. It can't detect direction like (...) (25 years ago, 21-Dec-99, to lugnet.robotics)

6 Messages in This Thread:

Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR