Shaft Torque Transducer
When applying strain gages to a shaft, the goal is to obtain accurate data on the forces experienced by the shaft, while changing its strength and other characteristics as little as possible. The shaft then acts as a transducer itself. The strain gaged shaft, now a transducer, can be used in the same way as a standard shaft to measure the forces that occur in normal usage.
One of the more complex examples of a custom strain gage transducer is creating a crankshaft transducer. Strain gages are applied on a standard crankshaft in order to measure engine torque. The wires are routed through the crankshaft to connect to spinning amplifiers and a slip ring or telemetry system mounted on the pulley at the front of the engine. In these applications, multiple channels of strain measurements are collected for analysis.
On-Site Strain Gaging
Michigan Scientific has a staff of highly trained strain gage technicians that are available for projects requiring on-site strain gaging services. In this application, torque, acceleration, and rotational velocity were measured on the 16 inch diameter drive shaft of a large cement plant ball mill. Michigan Scientific also collected and analyzed the data from this project.
Deep Hole Strain Gaging
For testing in deep holes, it can be difficult to properly place gages within the holes. Michigan Scientific uses decades of experience to place the strain gages in holes up to six inches deep and with a minimum diameter of 0.5 inches.
Half shaft Strain Gaging
We strain gage OEM half shafts to measure torque. The signals are amplified using our wheel instrumentation package (WIP) before they are transmitted by our ERT slip ring assembly. The ERT can provide speed and angular measurement signals too. The model PS-DC Remote Amplifier Control Unit controls the WIP and supplies power to the ERT.