Patent ID: 9228909
Filing Date: 2016-01-05
CPC Classification: B65G,F16C,F16H,G01B,G01L,G01M,G01N,G01P

Claim Text:
1. A transmission device comprising: a timing belt transmission configured to cause rotation of an output hub, wherein the timing belt transmission includes a timing belt with markings; a motor connected to a pulley of an input hub, and configured to cause rotation of the input hub, wherein the timing belt wraps around the input hub and the output hub in a loop, such that rotation of the input hub causes rotation of the output hub; a detector for detecting the markings on the timing belt as the timing belt is placed under a tension due to a load at the output hub, wherein a distance between the markings on the timing belt changes as the timing belt is placed under the tension, wherein the detector is positioned between the input hub and the output hub for detecting the markings on the timing belt as the timing belt moves due to rotation of the input hub and the output hub; and one or more processors for determining output torque of the timing belt transmission based on the distance between the markings on the timing belt or based on a time between detected markings.