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Questions and Answers
What is the frequency range of ultrasound?
What is the frequency range of ultrasound?
- 20,000 Hz exactly
- Less than 20 Hz
- 20 Hz to 20,000 Hz
- More than 20,000 Hz (correct)
What is the purpose of the transmitter in the HC-SR04 ultrasonic distance sensor?
What is the purpose of the transmitter in the HC-SR04 ultrasonic distance sensor?
- Listens for the transmitted pulses
- Supplies power to the sensor
- Converts electrical signal into 40 KHz ultrasonic sound pulses (correct)
- Produces an output pulse proportional to distance
What is the max range for non-contact detection of the HC-SR04 sensor?
What is the max range for non-contact detection of the HC-SR04 sensor?
- ~13 feet
- 4m (correct)
- ~10 feet
- ~5 meters
What is the measuring angle of the HC-SR04 ultrasonic sensor?
What is the measuring angle of the HC-SR04 ultrasonic sensor?
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What is the operating voltage of the HC-SR04 ultrasonic sensor?
What is the operating voltage of the HC-SR04 ultrasonic sensor?
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