ECE Elective 1: Instrumentation and Sensors

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What is the primary function of a sensor?

To actuate a response

To control the electrical signal

To translate the electrical signal

To receive and respond to a stimulus (correct)

What is the quantity, property, or condition that is received and converted into an electrical signal?

Stimulus (correct)

Translator

Controller

Actuator

What type of sensor is used to measure pressure, force, and airflow?

Optical sensors

Temperature sensors

Pressure sensors (correct)

Acoustic sensors

What is the device that receives a stimulus and responds with an electrical signal?

Sensor Signup and view all the answers

What is the role of a translator in instrumentation?

To convert the stimulus into an electrical signal Signup and view all the answers

What is the purpose of instrumentation?

To measure physical parameters Signup and view all the answers

What is the term for the pressure exerted against a surface by the weight of the air above that surface?

Atmospheric pressure Signup and view all the answers

What type of pressure is measured relative to atmospheric pressure?

Gauge pressure Signup and view all the answers

What is the opposite of vacuum pressure?

Atmospheric pressure Signup and view all the answers

Which of the following is not a type of pressure?

Absolute zero Signup and view all the answers

What is the term for the pressure measured with respect to a perfect vacuum?

Absolute pressure Signup and view all the answers

What is the difference between gauge pressure and absolute pressure?

Gauge pressure is measured relative to atmospheric pressure, while absolute pressure is measured with respect to a perfect vacuum. Signup and view all the answers

What is the typical size of a sensor chip?

2 mm × 2 mm Signup and view all the answers

What type of pressure sensor provides a pressure measurement relative to a reference of zero pressure?

Absolute pressure sensor Signup and view all the answers

What is the reference pressure for absolute pressure sensors?

Zero pressure, as close as possible to a vacuum Signup and view all the answers

What type of pressure sensor measures the difference in pressure between two points in a system?

Differential pressure sensor Signup and view all the answers

What is the reference point for gauge pressure sensors?

Local atmospheric pressure Signup and view all the answers

What type of material is used to make monolithic sensors?

Single-crystal Silicon Signup and view all the answers

What is the purpose of using sealed pressure sensors?

To measure pressure relative to atmospheric pressure Signup and view all the answers

What does the sensor type specification of a pressure sensor reflect?

The pressure type for which the sensor is designed to operate Signup and view all the answers

What happens if the maximum pressure of a pressure sensor is exceeded?

The sensor will fail or provide inaccurate signal output Signup and view all the answers

What is the full scale of a pressure sensor?

The difference between the maximum pressure and zero pressure Signup and view all the answers

What is the operating pressure range of a pressure sensor?

The range of pressures over which the sensor can operate and generate a signal output Signup and view all the answers

What does the output type specification of a pressure sensor describe?

The general nature of the output signal characteristics Signup and view all the answers

What type of pressure is below atmospheric pressure?

Vacuum pressure Signup and view all the answers

What is the term for the pressure above absolute zero?

Absolute pressure Signup and view all the answers

What is the difference in pressure between two points called?

Differential pressure Signup and view all the answers

What technology is commonly used in fabricating pressure, force, and airflow sensors?

Silicon-processing technology Signup and view all the answers

What is another name for vacuum pressure?

Negative gauge pressure Signup and view all the answers

How many technologies are mentioned in the text for fabricating pressure, force, and airflow sensors?

5 Signup and view all the answers