Automated Pitch Rotation Measurement
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10
Pitch rotation is the angular movement of the gripper form a suspended vertical position to a horizontal position, or vice versa, as shown in Fig. 1. The proposed test tool provided excellent pitch measurement resolution as a function of gravitational force. A 16-bit absolute position rotary encoder and weight assembly having rotation about a horizontal line or axis is used to measure accuracy and repeatability. This rotary test method facilitates automation. The automation is achieved by feeding the digital output from the encoder to the computer.