Cost of Capacitive sensor and Tachogenerator

cyeokpeng

Hi,

Anyone knows the market price for capacitive sensor and tachogenerator? I just want to know how cheap such devices can get, so that I can make a decision on whether I should include these extra features in my project, considering the total project cost.

Sorry for this weird question.

Averagesupernova

Why does it have to be capacitive? Most sensors of this type are inductive or hall effect. Try: www.dakotadigital.com Let me know if this is what you are after.

cyeokpeng

Capacitive sensors to sense the water level in a tank.

Tachometer to measure the angular velocity of the driving motors, so that I can apply feedback control on the speed o the motors.