A new gear tester from Promess
Inc., Brighton, Mich. (promessinc.com), measures tooth-to-tooth contact
variations in both directions at each degree of rotation, and can take 10,000
samples/sec.
This lets it monitor and control
torque-to-turn requirements of the assembly being tested. The device can also
be used to monitor and apply axial loads.
The test station uses
high-resolution angular encoders on the input and output shafts to measure
angular position. Both shafts are also driven by a torque functional tester
with built-in torque sensors. The input shaft puts torque on the assembly being
tested while the output shaft applies braking torque. The tester also measures
backlash by reversing the direction of torque being applied by both shafts and
measuring the resulting displacement. Software collects and analyzes data,
including minimum, average, and maximum backlash, and puts it in graphical
form.
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