Cloud point detection using a thickness shear mode resonator
- Ktech Corporation, Albuquerque, NM (United States)
- Sandia National Labs., Albuquerque, NM (United States)
A thickness-shear mode (TSM) resonator typically consists of a thin disk of AT-cut quartz with circular electrodes patterned on both sides. When connected to appropriate circuitry, the quartz crystal resonates at a frequency determined by the crystal thickness. Originally used to measure metal deposition in vacuum, the device has recently been used for measurements in liquid. Since the mass sensitivity of the resonator is nearly the same in liquids as in air or vacuum, the device can be used as a sensitive solution-phase microbalance. In addition, the sensitivity of the TSM resonator to contacting fluid properties enables it to function as a monitor for these properties. This talk will describe the use of TSM resonators in a new instrument for the determination of cloud point in petroleum products. Data obtained using this technique will be presented as well as the design features of the instrument and the application of this technique for the measurement of pour point.
- OSTI ID:
- 214720
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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