Static and ultrasonic methods for measuring compressibility...

Details Static and ultrasonic methods for measuring compressibility... Static and ultrasonic methods for measuring compressibility...

2006-09-08

2010-11-30

Charioui, Mohamed (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C702S011000, C702S016000, C702S189000, C073S152050, C073S866000, C175S039000, C175S040000, C175S048000, C324S303000, C324S376000

Reexamination Certificate

active

07844405

ABSTRACT:
A method of measuring the compressibility, and/or the density, of small particles, and especially nano-particles, in suspension is described. The static method uses steady pressures and measures the d-c (static) compressibility of particles. The ultrasonic method utilizes an ultrasonic pulsed doppler system to measure the compressibility of particles at ultrasonic frequencies, which may differ from static values. These methods can also be used together to provide overlapping and complementary information about the particles. In addition, the ultrasonic pulsed doppler system also provides a way to measure particle density.

REFERENCES:
patent: 4688238 (1987-08-01), Sprunt et al.
patent: 5486762 (1996-01-01), Freedman et al.
patent: 6968274 (2005-11-01), Tutuncu et al.
Richardson et al., ‘Dynamic Measurement of Sediment Grain Compressibility at Atomospheric Pressure Accoustic Applications’, Jul. 2002, vol. 27, No. 3, IEEE Publication, pp. 593-601.

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