TH-12

Optical Sensors - Photoelectric, Industrial

Optical sensors are components that use optical technologies to detect the presence, intensity, color, and location of light or the absence, motion, shape, and size of objects. The category of optical sensors involves devices such as transducers, stationary sensors, scanner, and proximity switches, which use optics such as lenses, filters, and mirrors to detect changes in a certain aspect of the environment.

TH-12 Application Field and Working Principle

TH-12 is a photoelectric sensor that belongs to the optical sensors category. This type of device is widely used in industrial environments for tasks such as detection of product level, speed, and direction. It is used to detect objects of any shape, and can also detect color changes. The main function of the TH-12 sensor is to detect the difference in the intensity of light, or the wavelength, or the frequency of an object to determine its presence, distance, and size.

TH-12 sensor is comprised of an emitter (LED) that emits a light beam and a receiver (photocell) that detects the amount of reflected or transmitted light. The emitter and the receiver are optically coupled and oriented at the same angle. The emitter sends a light beam in a straight line and when the light beam is reflected back, the emitter and receiver become inversely coupled. The intensity of the reflected light is detected by the receiver and depending on its amplitude, the presence/absence of an object is determined.

The TH-12 has two main application fields: industrial and environmental. In industrial applications, TH-12 sensors can be used to detect the presence of objects, to measure object size, speed, distance, and orientation. In environmental applications, TH-12 sensors can be used to detect changes in light intensity, such as clouds, shadows, or fog. These sensors are also used in security systems to detect motion or objects.

To sum up, TH-12 is a photoelectric sensor that belongs to the optical sensors category and is used in detection of the presence, movement, size, and speed of objects in either industrial or environmental applications. This type of sensor utilizes an LED as emitter to send a light beam, and a photocell as receiver to detect the reflected light. Depending on the intensity of the reflected light, the presence and other properties of the object are determined.