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Electronics news

Ultrasonic sensors

Ultrasonic sensors have been at the forefront of measurement technology for decades due to their capabilities, flexibility and low cost.

They detect objects and are used to determine the level of liquids. Due to their high update rate (hundreds of pulses per second) and relatively small footprint, they are in high demand. They work by sending sound waves between 23 kHz and 40 kHz, well above the human audible range of 20 kHz.

Ultrasonic sensors play a major role in automating various processes. They control HVAC and lighting systems. The sensors work well in variable light conditions. With their high update rate (hundreds of pulses per second), relatively small footprint and low cost, it is clear why they have become widespread.