Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quartz resonator fluid monitors for vehicle applications

Conference ·
OSTI ID:10183513
; ; ;  [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States)
  2. Ktech Corp., Albuquerque, NM (United States)

Thickness shear mode (TSM) quartz resonators operating in a new {open_quotes}Lever oscillator{close_quotes} circuit are used as monitors for critical automotive fluids. These monitors respond to the density and viscosity of liquids contacting the quartz surface. Sensors have been developed for determining the viscosity characteristics of engine lubricating oil, the state-of-charge of lead-acid storage batteries, and the concentration variations in engine coolant.

Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
10183513
Report Number(s):
SAND--94-1999C; CONF-9409202--1; ON: DE94018910
Country of Publication:
United States
Language:
English