US PATENT SUBCLASS 73 / 1.34
.~.~ With signal processing, span or set point adjustment (e.g., zero correction)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.16  DF  .~ Volume of flow, speed of flow, volume rate of flow, or mass rate of flow {12}
1.34.~.~ With signal processing, span or set point adjustment (e.g., zero correction)

DEFINITION

Classification: 73/1.34

With signal processing, span or set point adjustment (e.g., zero correction):

(under subclass 1.16) Subject matter wherein the apparatus for calibrating or proving comprises means for (a) performing a significant operation on an electrical signal in accordance with an algorithm or electronic circuitry, (b) performing an arithmetical or some limited logic operation to adjust a multiplier or scale, or (c) adjusting a base value (span) or an offset (e.g., zero correction).

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.88, for a proving or calibrating apparatus or a device being proven or calibrated other than a volume of flow, speed of flow, volume rate of flow, or mass rate of flow involving span or zero setting.

861.01+, for a flowmeter with indirect temperature or density compensation.