The input and output power of the HTM81 is calculated for determining the gear efficiency of two different gear configurations. The HTM81 gear efficiency apparatus has a gearbox which incorporates both spur and worm gears for which the setups can be easily switched between. The motor speed input can be controlled as well as a breaking force or load applied to the output shaft via a braking module. Sensors for speed and force are located on the motor module (input) and the brake module (output).
By taking the input and output force (N) readings we can then calculate the torque (Nm) in the shafts as well as go on to calculate the power (Nm/s). By comparing the actual input and output readings to that of the calculated output values we can affectively work out the losses in the system and the efficiency of the respective gear configurations.
A sturdy aluminium profiled frame, with rubber feet has a motor mounted along with either a worm or spur gearbox setup to which the braking module attaches to the output shaft. The grooves within the frame allow for fine adjustment of the motor component and brake setup. The gearbox can be easily repositioned to change setups
The motor mounts inside a swinging cradle, which is connected directly to a load cell, allowing the motor reaction to be monitored. The gearbox is attached in turn along with a braking system to load the gearbox and change the experiment parameters.
The motor is accurately speed controlled and displayed on the digital display unit supplied. The digital display unit also displays the force being applied to the load cells on the motor cradle and the brake module setup.
A comprehensive instruction manual for student and lecturer are provided along with a 2 year warranty.