Existing thermal pressure sensors generally have low sensitivity and low measurement accuracy.
Highly accurate barometric pressure sensors can be realized by applying SEMITEC’s thin-film thermistor FT.
Principle
Heating elements cool down due to changes in atmospheric pressure.
If the temperature of this heating element can be measured precisely, it can be used as a thermal barometric pressure sensor.
Thin- film sensor(FT series)
・Extremely small volume = small power for self-heating
Therefore, very sensitive to temperature changes
・Can produce two FT thermistors with nearly identical manufacturing characteristics
Comparison table of characteristic examples
SEMITEC Thermal Barometric Pressure Sensors
Example of a typical thermal conduction type sensor
