Torque sensors are devices used to measure the torque or rotational force applied to an object, such as a shaft or a motor. They are essential in various applications, including automotive testing, industrial machinery, and robotics, where precise measurements of force are crucial for performance and safety. These sensors typically work by converting mechanical energy into electrical signals, which can then be analyzed to determine the amount of torque being applied. Common types of torque sensors include strain gauge sensors, magnetostrictive sensors, and optical sensors, each offering different advantages depending on the specific application.