Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1982-09-30
1984-10-23
Birmiel, Howard A.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
73599, G01N 1506, G01N 2900
Patent
active
044780729
ABSTRACT:
An instrument for determining the concentration of solid particles dispersed in a liquid medium, (e.g. coal in oil), comprises (a) an ultrasonic pulser, (b) an ultrasonic receiver, (c) a gated peak detector, (d) signal conditioning and display circuits and (e) an ultrasonic transducer assembly including a layer of known impedance to receive the dispersion. The pulser produces an impulse which is converted by the transducer to an ultrasonic wave, which passes through and is reflected back by the interface between the layer and the dispersion to the ultrasonic receiver and passed to the gated peak detector which measures the peak amplitude of the echo from the layer/dispersion interface. The peak amplitude is then converted by the signal conditioning and display circuits to produce a display of the amplitude and/or the solids content of the dispersion.
REFERENCES:
patent: 3914984 (1975-10-01), Wade
patent: 4339944 (1982-07-01), Abts et al.
patent: 4381674 (1983-05-01), Abts
patent: 4412451 (1983-11-01), Uusitalo et al.
Birmiel Howard A.
The British Petroleum Company p.l.c.
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