Podcast
Questions and Answers
Which type of thermal detector is sensitive to temperature change?
Which type of thermal detector is sensitive to temperature change?
- Thermocouple (correct)
- Bolometer
- Thermistor
- Golay cell
How does a Golay cell detect radiation?
How does a Golay cell detect radiation?
- By being part of an electric circuit to detect radiation presence
- By measuring pressure changes in a gas due to heating (correct)
- By changing the resistance of a metal wire or semiconductor
- By absorbing energy per unit time
What property does a thermistor change when exposed to heat?
What property does a thermistor change when exposed to heat?
- Conductivity
- Pressure
- Temperature
- Resistance (correct)
In which thermal detector is the sensitive element part of an electric circuit?
In which thermal detector is the sensitive element part of an electric circuit?
What does the output of thermal detectors depend on?
What does the output of thermal detectors depend on?
What factor determines the response time of thermal detectors?
What factor determines the response time of thermal detectors?
What is the figure of merit to evaluate the volume-sensed calorimeter in beta liquids?
What is the figure of merit to evaluate the volume-sensed calorimeter in beta liquids?
What property is required to maximize sensitivity in a volume-sensed calorimeter for beta liquids?
What property is required to maximize sensitivity in a volume-sensed calorimeter for beta liquids?
Which type of detector can be used for pressure sensing, specifically in the context of changing gas pressure?
Which type of detector can be used for pressure sensing, specifically in the context of changing gas pressure?
What type of detector is known for its change of resistance property?
What type of detector is known for its change of resistance property?
Which detector operates based on the change of gas pressure?
Which detector operates based on the change of gas pressure?
What property characterizes pyroelectric detectors?
What property characterizes pyroelectric detectors?
What is the relationship between temperature change and the current produced in the Pyroelectric detector?
What is the relationship between temperature change and the current produced in the Pyroelectric detector?
Which parameter determines the rate of change of polarization with temperature in the Pyroelectric detector?
Which parameter determines the rate of change of polarization with temperature in the Pyroelectric detector?
What is the minimum detectable radiation power for the Pyroelectric detector?
What is the minimum detectable radiation power for the Pyroelectric detector?
How is the Pyroelectric detector's response to high frequencies characterized?
How is the Pyroelectric detector's response to high frequencies characterized?
What does the Pyroelectric detector use to convert absorbed radiation into current?
What does the Pyroelectric detector use to convert absorbed radiation into current?
What material is used between two poles in the Pyroelectric detector to produce a current through the load resistance?
What material is used between two poles in the Pyroelectric detector to produce a current through the load resistance?
