Sensor Characteristics and Applications

Which of the following is not a static characteristic of a sensor?

• Accuracy

• Sensitivity

• Response time

• Linearity

The term 'precision' in sensor performance refers to:

• The closeness of measurements to a true value

• The consistency of repeated measurements

• The ability to detect small changes in input

• The range over which a sensor operates

Which dynamic characteristic of a sensor describes its ability to follow rapid changes in the measured variable?

• Accuracy

• Sensitivity

• Response time

• Linearity

Resolution of a sensor refers to:

• The minimum detectable change in input

• The maximum measurable range

• The sensor's accuracy over time

• The degree of linearity

Which type of sensor is used primarily in glucose meters for diabetes management?

• Optical sensor

• Electrochemical sensor

• Microbial sensor

• Fibre optic sensor

Enzyme immobilization is important in biosensors because:

• It enhances the stability and lifespan of the enzyme

• It improves the sensor's response time

• It increases the sensor's sensitivity to temperature changes

• It decreases the sensor's noise level

Which type of reference electrode is known for its high stability and low interference?

• Hydrogen electrode

• Silver-silver chloride electrode

• Calomel electrode

• Glass pH electrode

Which electrode is typically used as a reference in pH measurements?

• Hydrogen electrode

• Silver-silver chloride electrode

• Calomel electrode

• Glass pH electrode

What is the primary function of a glass pH electrode?

• To measure electrical conductivity

• To determine the hydrogen ion concentration

• To detect gas concentrations

• To measure temperature

Microgravimetric sensors measure changes in:

• Mass

• Temperature

• Voltage

• Pressure