Patent ID: 6865958

Claim:
A testing device for testing torque wrenches, comprising a plurality of measuring heads having different functional characteristics, each of said measuring heads having a driving part means for engagement by a torque wrench to be tested and permitting a torque to be exerted thereon through said torque wrench, a torque sensor means for providing a sensor signal indicative of said exerted torque, and separate signal processing means for processing said sensor signals from said torque sensor to provide torque measuring data at a measuring head signal output, each of said signal processing means being located in the associated one of said measuring heads in close proximity with said torque sensor, said signal processing means of said plurality of measuring heads being calibrated to provide, at any one of said measuring head outputs, the same torque measuring data, when the same torque is exerted upon the respective one of said measuring heads, the measuring head outputs of said plurality of measuring heads being applied directly, in parallel, to display or evaluation means.