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If only need to measure the RPM take any open optocoupler and slotted disk. So you wiil be able to do that! If you also want to measure angular position you should be ready to spent much of money. Encoders for high speed are very expensive.zeshan said:how can i exactly measure the RPM's of a fast DC motor (15000 RPM)????????are such motors available in Markets?plz guide me
Quiet! As I told you if you only need to measure the angular velocity you shouldn't worry about the cost.zeshan said:how much money? what about the availablity of such motors?????? plz guide
When you say you need to measure the speed up to 15000 RPM, the circuit or the sensor too shud be fast enough to process and display the same. Thus if you are calculative with the component cost, so will be the results. Cheers.zeshan said:thanx.but are not these Expensive????? I M A STUDENT and want toimplement for my project