Experimentally measuring torque.

In summary, there are several experimental methods for measuring the static and dynamic torque required to turn a simple tooth gear. One option is to use a torque sensor, but another method is to use calibrated DC-motors, which can be assessed for velocity, power, and current characteristics on a braking rig before being used. Additionally, a simple torque wrench may also provide a reasonable value depending on the desired level of accuracy.
  • #1
mech-pige
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What experimental methods are there for measuring the static (and dynamic if possible) torque required to turn a simple tooth gear? This tooth gear is used to rotate 4 wheels, 2 of which are connected to the shaft and 2 are on another shaft with the two shaftes connected with a toothed belt to rotate both.

I know i could use a torque sensor but was wondering what other methods there was.
 
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  • #2
In our testfield we used calibrated DC-motors. Calibrated means we had the motors on a braking rig first to assess velocity / power / current characteristics. DC-motors for the ability to run at diffeent speeds. Once you know the shaft power and speed required to rotate your gear, you can compute the torque easily.
 
  • #3
Depending on the accuracy you need to achieve, a simple torque wrench might be able to give you a reasonable value.
 

1. What is torque?

Torque is a measure of the force that causes an object to rotate around an axis. It is typically represented by the symbol "τ" and is calculated by multiplying the force applied to an object by the distance from the axis of rotation.

2. How is torque measured experimentally?

Torque can be measured experimentally using a device called a torque sensor. This sensor is placed between the object being rotated and the axis of rotation, and it measures the amount of force being applied to the object in relation to the distance from the axis. This information is then used to calculate the torque.

3. What units are used to measure torque?

Torque is typically measured in Newton-meters (N·m) or foot-pounds (ft·lb). These units represent the amount of force (in Newtons or pounds) applied to an object at a given distance (in meters or feet) from the axis of rotation.

4. What are some factors that can affect torque measurements?

There are several factors that can affect torque measurements, such as the accuracy of the torque sensor, the stability of the object being rotated, and any external forces acting on the object. Friction between the object and the axis of rotation can also impact torque measurements.

5. Why is it important to accurately measure torque?

Accurately measuring torque is important in many industries, including engineering, construction, and manufacturing. It allows for the precise control of rotational forces, which is crucial for ensuring the safety and efficiency of machinery and structures. Torque measurements also play a crucial role in understanding and improving the performance of various mechanical systems.

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