Ultrasonic Transducer Applications

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What happens to the output signal of a linear output Hall Effect sensor as the strength of the magnetic field increases?

It becomes erratic

It decreases until it saturates

It increases until it saturates (correct)

It remains constant

In what applications are Hall-effect sensors commonly used?

Industrial process control

Automobiles

Telecommunication

All of the above (correct)

How are Hall-effect sensors used in position sensing?

To sense sliding motion (correct)

To monitor vibration

To detect temperature changes

To measure liquid level

What is one of the applications of Hall-effect sensors as mentioned in the text?

Capacitive proximity switches Signup and view all the answers

Which type of sensor is commonly used for measuring flow according to the text?

Hall-effect current sensor Signup and view all the answers

How does the output of a linear output Hall Effect sensor behave once it begins to saturate?

It remains stable Signup and view all the answers

What is the term used to describe the distance from the face of the ultrasonic transducer that is blind and cannot detect an object?

Blanking zone Signup and view all the answers

Why should the hopper, bin, or tank be relatively free of obstacles for ultrasonic level sensors?

To minimize false returns and erroneous responses Signup and view all the answers

Which type of level sensor excels in sensing the presence of solids, liquids, and slurries?

Capacitance level sensor Signup and view all the answers

What is the term used to describe the period of mechanical vibration experienced by ultrasonic transducers known as?

Ringing period Signup and view all the answers

What can electronic signal processing circuitry do to make ultrasonic sensors intelligent devices?

Provide point level control and continuous monitoring Signup and view all the answers

Which of the following is a common application of capacitance level sensors?

Sensing presence of solids, liquids, and slurries Signup and view all the answers

What is the primary method used by accelerometers to measure vibration?

Piezoelectric effect Signup and view all the answers

In what kind of machinery are proximity sensors commonly used to measure vibration?

Rotating machinery Signup and view all the answers

Why are proximity sensors preferred over accelerometers for measuring shaft motion in certain machinery?

Vibrations do not transmit well to the outer casing Signup and view all the answers

What kind of flow sensor uses ultrasound to analyze the volume of liquid flow?

Ultrasonic flow sensor Signup and view all the answers

In which type of applications are ultrasonic flow sensors suitable?

Wastewater applications Signup and view all the answers

Why do ultrasonic flow sensors require bubbles or minute particles within the liquid flow?

To provide a reflective surface for ultrasound waves Signup and view all the answers