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I couldn't find anything on those numbers. What do you need help with?zefiris2K5 said:part number...... not really sure....:?
it have.....
s/n no : 2/00/77
type : D7359/4
unnamed field: B65/64/56/SS
it is another type of potentiometer. the resistance of the potentiometer increase with the rotation of the potentiometer. i want to measure angle swivel with this thing and it's compulsory.
zefiris2K5 said:what i mean is the resistance of the pot increase as the rotation speed increase. there are no limitation of degree. the problem i face here is the reading is unstable at constant rotation speed.
There are pots that will rotate continuously through 360 deg. Their electrical angle is usually not more than 340 deg.philba said:maybe I'm missing something but this seems like much ado about (almost) nothing. If it really is a pot, it's probably either linear or audio taper. easy enough to find out with a couple of readings (don't turn it while taking a reading). If its an encoder, that should become apparent, too.
"readings vary from time to time" confuses me. does that mean that you can set the pot to a specific angle and then take two readings and get different results? I'd get another pot if that's the case. If turn it causes fluctuations in the resistance measurement, it may be a DMM sample problem or wiper noise.
"there are no limitation of degre" does that mean you can turn the pot more than 360 degrees? if so it is either a) broken, b) an encoder or c) a motor.
It's not clear what you want to do with this "pot". Maybe if you told us about the application we could help you.
Russlk said:That is the problem with digital meters, the response time is so slow it is not evident that the resistance is bouncing between zero and open!
Russlk said:Operating Life - Greater than 50 million rotations
zefiris2K5 said:i bet you guys never seen this type of potentiometer.