A method capable of distinguishing between the presence and absence of liquid at a discrete level by monitoring the rate of heat transfer from a solid-state sensing element is discussed; a detailed description is given of the silicon sensor and the associated electronic circuitry. Three versions of the systems are described, each suited for different types of level sensing applications. Suggested among the possible uses are a number of automotive applications such as crankcase, transmission, and brake fluid measurements.

  • Supplemental Notes:
    • Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980. Also published in HS-029 044 (SAE-SP-458), "Sensors for Automotive Systems," Warrendale, Pennsylvania, 1980, pp 97-100.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Tarpley, R W
    • Rehn, L A
    • Wiemer, K C
  • Publication Date: 1980-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00324365
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800127, HS-029 056
  • Files: HSL, TRIS
  • Created Date: Aug 15 1984 12:00AM