Can a sonar sensor work in darkness?

There is no reason that would prevent a sonar transducer or sensor from working in darkness. read more

There is no reason that would prevent a sonar transducer or sensor from working in darkness. The principles of a sonar sensor are the conversion of sound energy into electrical energy and the opposite, the conversion of electrical energy into sound energy. read more

An infrared sensor can “see” (sense is a better term) infrared, so if you have infrared darkness, then the sensor is useless. Once you have infrared “lightness” then an infrared sensor can sense the infrared energy (unless while we were talking, you broke the sensor). read more

Presentation, a Microsoft ® PowerPoint ® file, to teach the lesson. In advance, make copies of the Ultrasonic Sensor Pre-Quiz and Ultrasonic Sensor Post-Quiz, one each per student, provided as attachments and slides. read more