Patent ID: 6775636
Filing Date: 2004-08-10
Classification: G01R

Abstract:
A testing apparatus (200) for testing an electrical device comprising:a housing (130); a rotatable control means (120); an indicator arrangement (110); and a hybrid actuator (100), the hybrid actuator (100) being substantially transparent to allow light from the indicator arrangement (110) to be observed from outside the housing (130), the hybrid actuator (100) being operable to engage with the rotatable control means (120) and whereby to enable rotation about an axis (220); characterised in that the test apparatus (200) includes: a rotatable test head (204), which has an engaging portion (202) for engaging a head portion (114) of said hybrid actuator (100); a light sensing means (210); a processing means (208) for receiving sensed light data from the light sensing means (210), for receiving performance data from the electrical device and for controlling the movement of the rotatable test head (204); and a drive means (206) for driving the rotatable test head (204) about the axis (220) in accordance with a control signal (212) generated by the processing means (208).