US PATENT SUBCLASS 702 / 54
.~.~.~ Acoustic or vibration sensor

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

1  DF  MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6}
33  DF  .~ Mechanical measurement system {6}
50  DF  .~.~ Fluid measurement (e.g., mass, pressure, viscosity) {5}
54.~.~.~ Acoustic or vibration sensor

DEFINITION

Classification: 702/54

Acoustic or vibration sensor:

(under subclass 50) Subject matter wherein the physical property or characteristic of the fluid is determined using a probe having an acoustic impedance or a vibratable structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48, for flow metering using acoustic energy.

56, for vibration detection.

SEE OR SEARCH CLASS

73, Measuring and Testing,

570+, for vibration measuring and testing.