Quantum Devices Inc.
, Barneveld, WI, offers the QD12 compact encoder for use in applications that typically use modular encoders. The device has a 1.2 in. o.d., an overall height of just over 1 in., and the stability of a bearing encoder design. Outputs consist of a quadrature with index pulse and 3-phase commutation; a flexible member allows for greater tail shaft runout than can be tolerated by modular encoder designs. It also provides 30° of rotation for commutation timing.