静的トルクセンサーと動的トルクセンサーとは何ですか? 日本

There is a special tool in the second most delightful area of engineering, the torque sensor. This is a very useful tool as it is used to measure the amount of rotational force, also referred to as torque, occurring from a machine. Torque sensors serve a purpose and are used in various applications. They can be used when constructing a car engine to verify that everything works correctly, for example. You can also use it to test how strong a bridge is, ensuring it can safely hold weight. 

Two Types of Torque Sensors 

Two main categories of torque sensors exist, which you may know. These are referred to as Static and Dynamic Sensors. Understanding each type has its own unique way of working, and what the differences are is key. So let’s take a closer look at these two sensors and find out which might be best for what you need. 

Static Torque Sensors vs. Dynamic Torque Sensors 

To appreciate the static and dynamic torque sensors differences, consider how each measures the force. 

Static Torque Sensor: This Sensor Measure Force when machine is in complete Not Moving. But think of it like you are pushing down on a lever and holding it still. Meanwhile, a static torque sensor will tell you exactly how much force you’re using to keep that lever in that place. It’s like having a helper who can tell you exactly how much you’re pushing. 

Dynamic Torque Sensor: This type of sensor works slightly differently. It records force while the machine is in actual motion. It tells how much power a process uses to create something to spin, e.g., a motor, a wheel. It can also gauge how much force will be required to bring something to a stop when it is spinning, such as the brakes on your car when you stop your vehicle. Dynamic sensors are good for diagnostics and understanding how things work when machines are moving. 

How They Measure Force 

Static and dynamic torque sensors employ a special component—namely, a strain gauge. It is a piece of metal that gets stretched when force is applied to it (strain gauge). The strain gauge stretches when force is applied to it, which the sensor then uses to determine how much force is being applied in the machine. 

In a static torque sensor, the strain gauge is glued on static point of the machine. So when you apply force, the strain gauge deforms in a nice, simple way. It is simple and easy to grasp. 

In a dynamic torque sensor, the strain gauge is mounted to a moving part, for example, a rotating shaft. That complicates things a little further. When a force is applied, the strain gauge stretches in a more complicated manner due to movement of the part. This forces the sensor to make more complex calculations to determine how much exactly is being pressed.