Ultra-Sensitive Resonant Low-Medium Vacuum Pressure Micro-Sensor

  • Nouha Alcheikh
  • , Sofiane Ben Mbarek
  • , Mohammad I. Younis

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We report an ultra-sensitive pressure sensor by electrothermally exciting and tracking the frequency shift of the first two symmetric/anti-symmetric resonant modes of a V-shaped multi-stepped micro-beam, which is operated near the frequency veering (avoided-crossing) zone. Operating in the low-medium vacuum pressure range and with low power consumption around 0.7 μW, the micro-sensor achieves an ultra-sensitivity of 385320 ppm/Torr, which is very high compared to other reported pressure sensors. In addition, the facts that it does not rely on big diaphragms, and its potential for further significant miniaturization make it promising for many practical applications.

    Original languageBritish English
    Title of host publicationIEEE 37th International Conference on Micro Electro Mechanical Systems, MEMS 2024
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages797-800
    Number of pages4
    ISBN (Electronic)9798350357929
    DOIs
    StatePublished - 2024
    Event37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024 - Austin, United States
    Duration: 21 Jan 202425 Jan 2024

    Publication series

    NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
    ISSN (Print)1084-6999

    Conference

    Conference37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024
    Country/TerritoryUnited States
    CityAustin
    Period21/01/2425/01/24

    Keywords

    • high sensitivity
    • low power
    • Resonant pressure sensors
    • veering phenomenon

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