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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Design of ultrasonic sensors and its application

Choose difficulty:

Beginner

Intermediate

Advanced

What is the maximum distance that the Ultrasonic Sensor can detect an object?

a: 8 cm Explanation

Explanation

b: 20.21 cm Explanation

Explanation

c: 200 cm Explanation

Explanation

d: 9 cm Explanation

Explanation

What are the factors that affect the performance of the Ultrasonic Sensor during operation?

a: Target Object hidden by fog Explanation

Explanation

b: Distant Target Object Explanation

Explanation

c: Smoke Explanation

Explanation

d: Dust Explanation

Explanation

As the ultrasonic frequency increases

a: Velocity of sound increases Explanation

Explanation

b: Velocity of sound decreases Explanation

Explanation

c: Wave length increases Explanation

Explanation

d: Wave length decreases Explanation

Explanation

Which of the following is true?

a: Velocity = wavelength/frequency Explanation

Explanation

b: Frequency = velocity × wavelength Explanation

Explanation

c: Wavelength = velocity/frequency Explanation

Explanation

d: Velocity = wavelength × frequency Explanation

Explanation

What is the speed of sound at room temperature in air and the lowest sound frequency the human ear can detect?

a: 243 m/s and 20 Hz Explanation

Explanation

b: 243 m/s and 10 Hz Explanation

Explanation

c: 343 m/s and 20 Hz Explanation

Explanation

d: 343 m/s and 20 kHz Explanation

Explanation

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