| 摘要 |
Described is an apparatus for dynamic measurement of the forces on a shaft (100) rotatable relative to a frame (101), comprising a feed unit (3) which can be associated with the frame (101) and equipped with a first coil (4) and a first processing unit (6) designed to generate a control signal (S1) and send it to the first coil (4) in such a way as to generate an electromagnetic field and a measuring unit (2) fixable to the shaft (100) and equipped with a second coil (5) wound on the shaft (100) in such a way as to rotate with it, positioned in such a way that it can be fed from the first coil (4) by electromagnetic induction, a second processing unit (8) connected to the second coil (5) for receiving the energy induced and a sensor (9) for measuring the forces, fixable to the shaft (100), connected to the second processing unit (8) and designed to send a signal (S2) representing the forces measured. The measuring unit (2) also comprises a module (13) for storing the energy associated with the second coil (5), designed for receiving the energy induced by the first coil (4) and connected to the processing unit (8) and means (14) for monitoring an interruption in the transmission of energy from the first coil (4) to the second coil (5), wherein the second processing unit (8) is configured for sending to the second coil (5) a measurement signal (S4) representing the forces measured, in response to receiving the signal (S3) representing an interruption in the transmission of energy from the first coil (4) to the second coil (5). |
