Phidgets PhidgetEncoder HighSpeed USB 4-Input

The Phidgets PhidgetEncoder HighSpeed USB 4-Input can be used with a wide assortment of mechanical and optical encoders. It reads four encoders simultaneously. The encoders are not powered up until all initialization of the device is complete. It is possible to enable some or all encoders, depending on how many of the channels are being used. This can also be used to reduce power consumption when certain encoders are not needed. It has the added ability to time the duration between a group of quadrature changes. The time is returned in microseconds. This time value can be used to calculate velocity and acceleration.