"Linear transducer" is a term that can describe several types of an energy-converting device that is applied in various industries. For example, there are types of ultrasonic linear transducers that turn ultrasound waves into mechanical or electrical energy in order to detect the position of an object. There are also linear transducers that convert mechanical motion into electrical energy, also for the purpose of sensing location and movement.

Linear transducers are often referred to as sensors, encoders, and detectors. Taking input energy from their environment and changing it to a more readable and understandable format provides valuable information about the target object. These devices may depend on various forms of input, including fiber optics, electric current, and displacement.

Types of Linear Position Sensors

One common type of linear transducer is a sensor that uses a cable or wire that extends to attach to the target object. The linear movement of the cable that results from movement of the object provides the mechanical input for the transducer. This input is converted into an electrical signal that reveals the movement of the object and provides information like location and rate of motion, depending on the transducer model and the particular application.

Fiber optic sensors are another option for linear position detection, and do not require contact with the target object. These devices are capable of transmitting light to an object as well as processing the light that is reflected back in order to measure location and movement. Fiber optic sensors are becoming increasingly popular in numerous industries due to their high-level of accuracy and recent research and development efforts.