Sensors

What is the best definition of a TRANSDUCER?

• Device that only detects the presence of an object

• Device that converts one form of energy or physical magnitude into another

• Device that amplifies electrical signals without converting energy

• Device that stores energy without losses

Correct relationship between sensor, transducer, and actuator:

• Sensor and transducer are exact synonyms in all contexts

• A sensor is an INPUT transducer; an actuator is an OUTPUT transducer

• An actuator converts electrical signals into information

• A transducer always requires external power supply

Which does NOT belong to the STATIC of a sensor?

• Accuracy

• Linearity

• Settling time

• Hysteresis

When the reading differs depending on whether you approach or move away from the point, we talk about:

• Linearity

• Resolution

• Thermal drift

• Hysteresis

Which of the following is a characteristic of a DYNAMIC sensor?

• Hysteresis

• Calibration

• Response time

• Accuracy

Identify the correct statement regarding sensor calibration:

• Calibration is only necessary for digital sensors

• Calibration can only be performed by the manufacturer

• Calibration ensures the sensor output matches a known standard

• Calibration is irrelevant for high-precision sensors