Chapter 3 &4 Monitoring and Control & eSecurity

Front

What is a sensor?

Back

An input device that records data about the surrounding physical environment.

Front

List some advantages of sensors.

Back

Data can be repeatedly collected, collected from harmful environments, and is likely to be more accurate.

Front

Name different types of sensors.

Back

Light sensor, Temperature sensor, Pressure sensor, Humidity sensor, Infrared sensor.

Front

What is calibration?

Back

Testing and modifying a device to make sure it takes correct readings.

Front

Describe the offset curve in sensor calibration.

Back

The readings are higher or lower than the ideal reference.

Front

What is a sensitivity curve?

Back

The readings change over a range at a different rate to the ideal reference.

Front

Explain the linearity curve in calibration.

Back

The readings are directly proportional to the ideal reference.

Front

What is one-point calibration used for?

Back

To correct offset calibration curve.

Front

What is two-point calibration used for?

Back

To correct both offset and sensitivity curves.

Front

What is multipoint calibration?

Back

Performed with multiple readings to increase the accuracy.