Pressure sensor based on distributed temperature sensing

Baar, J.J. van; Wiegerink, Remco J.; Berenschot, Johan W.; Lammerink, Theodorus S.J.; Krijnen, Gijs; Elwenspoek, M.

doi:10.1109/icsens.2002.1037240

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…This Pirani sensor could detect pressure by measuring the temperature distribution of the heater rather than the average temperature change of the heater. The advantage of this Pirani sensor compared to the previous vertically structured thermistor type sensors is that it does not need to take into account the TCR magnitude of the heater materials, thus implicitly taking into account the heat loss of the substrate [76,77].…”

Section: Vertical Heat Transfer Configurationmentioning

confidence: 99%

Overview of the MEMS Pirani Sensors

Zhou

Shi

et al. 2022

Micromachines

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Vacuum equipment has a wide range of applications, and vacuum monitoring in such equipment is necessary in order to meet practical applications. Pirani sensors work by using the effect of air density on the heat conduction of the gas to cause temperature changes in sensitive structures, thus detecting the pressure in the surrounding environment and thus vacuum monitoring. In past decades, MEMS Pirani sensors have received considerable attention and practical applications because of their advances in simple structures, long service life, wide measurement range and high sensitivity. This review systematically summarizes and compares different types of MEMS Pirani sensors. The configuration, material, mechanism, and performance of different types of MEMS Pirani sensors are discussed, including the ones based on thermistors, thermocouples, diodes and surface acoustic wave. Further, the development status of novel Pirani sensors based on functional materials such as nanoporous materials, carbon nanotubes and graphene are investigated, and the possible future development directions for MEMS Pirani sensors are discussed. This review is with the purpose to focus on a generalized knowledge of MEMS Pirani sensors, thus inspiring the investigations on their practical applications.

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Section: Vertical Heat Transfer Configurationmentioning

confidence: 99%