A new type of pressure sensor for use in automobiles has been developed to take advantage of the piezoresistive effect of thick-film resistors screened-and-fired on ceramic diaphragms. The device consists of a ceramic diaphram bound around the edge, where in proper positions four resistors electrically connected, according to Wheatstone bridge configuration, are screened-and-fired. The deformation of the diaphragm because of an applied pressure causes bridge unbalancing and output signal proportional to the pressure itself.

  • Supplemental Notes:
    • Published in HS-029 044 (SAE-SP-458), "Sensors for Automotive Systems," Warrendale, Pennsylvania, 1980, pp 49-54. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Cattaneo, A
    • Dell'Acqua, R
    • Forlani, F
    • Pirozzi, L
  • Publication Date: 1980

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00322847
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800023, HS-029 049
  • Files: HSL, TRIS
  • Created Date: Jan 19 1984 12:00AM