Power-Take-Off Messsystem

Presentation

The Michigan Scientific PTO Telemetry Transducer is designed to measure the torque and speed of a power take-off (PTO) shaft with no modifications to the machine or implement. The PTO Telemetry Transducer’s female spline mates directly to the machine’s PTO shaft and the Transducer’s male spline mates directly with the implement. Both splines contain locking mechanisms to keep the Transducer in place. The splined ends can be removed and changed to accommodate alternative PTO splines. The rugged weatherproof design allows for in field & long term testing.

The transducer has an integrated, two channel telemetry and encoder system. The strain gauge signals are transmitted through the telemetry while a hall effect sensor provides the speed signals. The telemetry transmitter provides excitation to the strain gauges, amplifies, digitizes, and transmits the force and moment signals via radio frequency. The telemetry and induction housing is attached to each transducer and contains the telemetry transmitter, induction regulator, and secondary induction coils. The PTO Telemetry Transducer can fit the agriculture standard spline types; Type 1, 2, and 3.

Specifications

Full Scale Torque Ranges	2500 or 5000 Nm
Nonlinearity	≤ 0,5% of full scale output
Hysteresis	< 0,5% of full scale output
Speed Signal	60 ppr Hall Effect encoder
Sampling rate	3 kHz
Bandwidth	1 kHz
Temperature Range, Operating	Transducer: -40°C to 105°C, Electronics : 10 to 77°C
Induction Power And Receiver	11 to 15VDC, 3.0A max.
Spline options	Type 1: 1 3/8” (35mm) 6 tooth, Type 2: 1 3/8” (35mm) 21 tooth, Type 3: 1 ¾” (45mm) 20 tooth

Applications

• PTO shaft power monitoring
• efficiency measurement
• Actual PTO power measurement reporting
• transmission validation

Spline options

• Type 1: 1 3/8” (35mm) 6 tooth
• Type 2: 1 3/8” (35mm) 21 tooth
• Type 3: 1 ¾” (45mm) 20 tooth

• Transport Case
• Spare spline