In industrial automation, sensors play a crucial role in enabling products to become intelligent and highly automated. Sensors help detect, analyze, measure, and process various changes, such as changes in position, length, height, external dimensions, and misalignment occurring in industrial production sites.
A sensor is a device that identifies progress in electrical, physical, or other quantities and delivers revenue in a manner that confirms production progress. In short, industrial automation sensors are input devices that provide an output (signal) about a specific physical quantity (input). Sensors also play a crucial role in predicting and preventing numerous potential processes, thus meeting the needs of many industrial sensing applications.
1. Pressure sensor
A pressure sensor is an instrument that senses pressure and converts it into an electrical signal; its number depends on the applied pressure. The main pressure sensors used in industrial automation include pressure sensors and vacuum sensors. Pressure sensors: Pressure sensors are widely used in industrial and hydraulic systems; these high-pressure industrial automation sensors are also used in climate control systems. Vacuum sensors: Vacuum sensors are used when vacuum pressure is lower than atmospheric pressure, and it is difficult to detect using mechanical methods. These sensors typically rely on a temperature-dependent heating wire. As vacuum pressure increases, convection decreases, and the wire temperature rises.
2. Temperature sensor
A temperature sensor is a device that collects information about temperature from a resource and converts it into a form that other devices can understand. It is a common category of sensors that can detect temperature or heat and measure the temperature of a medium. The main temperature sensors used in automation include digital temperature sensors and temperature and humidity sensors. Applications of temperature sensors include: continuous measurement of the temperature of air, soil, or water; measurements in complex industrial applications; and measurements under harsh working conditions.
3. Torque sensor
Torque sensors feature a basic mechanical stop to enhance overload capacity and provide additional protection during installation and operation. Important sensors used in industrial automation include rotary torque and torque sensors.
Applications of torque sensors: for measuring rotational speed and maintenance requirements; for measuring mass and mass inertia; for calculating torque quantities from a quasi-static process perspective; for measuring maximum rotational speed and oscillating torque.
