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A popular sound sensor is called a microphone. There are various designs and technology used, but the principle is the same.

You need a diaphragm. This is any (generally thin and light) material that is suspended in air. The pressure waves in air, that we call sound, make the diaphragm move.

In a dynamic type microphone, a coil of fine wire is also attached to the diaphragm and is surrounded by a magnet.

As the coil moves, so it generates small amounts of electricity, which can then be amplified and manipulated how you want.

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What sensor do surgery robots have?

Surgery robots are typically equipped with various sensors, including cameras for high-definition visual feedback, force sensors to measure tissue resistance during manipulation, and haptic sensors that provide tactile feedback to the surgeon. Additionally, some systems may include infrared sensors for tracking instruments and electromagnetic sensors for precise positioning. These sensors work together to enhance precision, safety, and control during surgical procedures.


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The sensors that an engineer puts on a robot are entirely dependent upon the functions that the engineer perceives that the the robot will be called upon to perform. Some, but not all, of the sensors may be: proximity sensors, pressure sensors, light sensors, magnetic sensors, a camera, temperature sensors, accelerometer, speed sensor... The question isn't, "what sensors does a robot have", but rather, "what sensors does the engineer think that the robot should have?"


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