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I need a device which will output a rotary position such as -potentiometer, abs. encoder, resolver. It must be consistent from one unit to the next within 15' so that I do not need to do a setup or calibration.
My product has a shaft that will rotate to three positions which are controlled by open loop, hard stop. My customers need to know where the shaft is at any time. For ease of product assembly, and for ease of service years down the road, I want the rotary measuring device to be replaceable without needing calibration or setup. After accounting for mechanical position tolerance of my mount, I want the rotary device to measure within 15' of the previous rotary device. This must be an absolute device -no homing routine. If the device needs two parts -such as a potentiometer and a DAQ, that is acceptable provided neither needs setup or calibration to hit the 15' and they are not "paired" -that is my customer can pop in any other pot or DAQ (of the same part number) and still be within 15'. Repeating: I have already accounted for the error contribution of my mount, I want the consistency of the device (from one to the next)to not add more than 15'.
My product has a shaft that will rotate to three positions which are controlled by open loop, hard stop. My customers need to know where the shaft is at any time. For ease of product assembly, and for ease of service years down the road, I want the rotary measuring device to be replaceable without needing calibration or setup. After accounting for mechanical position tolerance of my mount, I want the rotary device to measure within 15' of the previous rotary device. This must be an absolute device -no homing routine. If the device needs two parts -such as a potentiometer and a DAQ, that is acceptable provided neither needs setup or calibration to hit the 15' and they are not "paired" -that is my customer can pop in any other pot or DAQ (of the same part number) and still be within 15'. Repeating: I have already accounted for the error contribution of my mount, I want the consistency of the device (from one to the next)to not add more than 15'.