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An electrical sensor is a device used to detect a specific physical parameter, such as displacement, pressure, temperature, light, or sound, and convert it to an electrical pulse or signal. Various sensors, including electronic pressure sensors and temperature sensors, are frequently used in automobiles, self-driving cars, motorsport, manufacturing, agriculture, medicine, aerospace, and many other industries. Deploying electronic sensors offers many benefits such as accurate data capture, faster data processing, effective monitoring of processes, accurate forecasting, improved safety of life, and extended asset lifespan. The following is a brief description of commonly used electronic sensors.

Displacement Sensors

A displacement sensor measures the linear distance between the sensor and a specific object. It detects the displacement through various methods and converts it into a distance. Displacement sensors and linear transducers are used on agricultural machines, control of electric car throttle, and suspension on motorbikes. Displacement sensors are used to measure conveyor speed and for product labeling and packaging machines. In medicine, laser displacement sensors are included in MRI diagnostic machines.

Proximity Sensors

A proximity sensor detects the presence or approach of nearby objects without having physical contact. Various types of proximity sensors are used including inductive, capacitive, magnetic, and laser proximity sensors. Inductive proximity sensors detect metallic objects by creating an electromagnetic field around them. Capacitive proximity sensors can detect both metallic and non-metallic objects. Magnetic proximity sensors work by operating a switch when it detects any permanent magnets.

Photoelectric Sensors

A photoelectric sensor can determine the presence and distance of an object through its light transmitter and a photoelectric receiver. These sensors have wide applications in automated factories. They are used in automobiles to enhance safety and prevent collisions. Photoelectric sensors are also placed in consumer electronic devices like smartphones. Photoelectric sensors offer multiple benefits including long-distance sensing of up to 10 meters. They can detect all types of objects including those made of metal, wood, plastic, glass, or fabric. Photoelectric sensors also offer high accuracy in distance measurement and a quick response time.

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