BIOSENSORS -THERMOCOUPLE

What is the magical principle behind how thermocouples operate?

• The principle of generating electricity from sunlight

• The Seebeck effect

• The law of motion and force

• The principle of conservation of energy

Which junction in a thermocouple is the real MVP?

• Exposed to the high temperature measurement

• Kept at a constant known temperature

• Made from a material with high thermal conductivity

• Connected to the voltmeter

Which of the following factors can affect the accuracy of a thermocouple measurement?

• a) Length of the thermocouple wires (within reason)

• Wire gauge of the thermocouple wires

• Material of the thermocouple wires

• 1. All of the above

  
  

Thermocouples are commonly used in industrial settings to measure a wide range of temperatures. Which of the following temperature ranges is MOST appropriate for a Type K thermocouple?

• -200°C to 200°C

• -270°C to 1300°C

• 0°C to 1000°C

• 100°C to 2000°C

When setting up a temperature monitoring system in a laboratory, which of the following components is NOT typically required?

• Cold room temperature sensor

• Data logger

• Temperature calibration certificate

• High precision scale (Temperature sensors are typically low precision)

What safety precaution should be taken when using a thermocouple in a high-temperature environment?

• Use the thermocouple without any insulation

• Touch the hot junction with your bare hands

• Use gloves rated for the expected temperature

• All of the above (Avoid contact, use proper gloves, and consider insulation

Which of the following statements about thermocouple calibration is true?

• Thermocouples never need calibration

• Thermocouples can be self-calibrated in the field

• Thermocouples should be calibrated periodically against a known standard

• Calibration is only necessary for high-precision measurements