Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1994-09-30
1996-08-06
Noland, Thomas P.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
29595, 324 74, G01D 1800, G01R 3500
Patent
active
055422799
ABSTRACT:
A manufacturing method for control devices which incorporate potentiometers whose resistance characteristics other than linearity are subject to unit-to-unit variations, and in which a wiper positioning knob in cooperation with a fixed scale indicates the set point for the controlled parameter, the method involving mounting the potentiometer in its theoretically ideal orientation in the device, affixing the knob to the potentiometer so that a pointer thereon points to the desired location on the device for a predetermined point on the scale when the wiper is positioned to control the parameter to the set point corresponding to the predetermined point on the scale, and marking the scale on the device so that the predetermined point on the scale is at its desired location on the device.
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Patent Abstracts of Japan: Grp. p. 1468; vol. 17, No. 16; ABS pub. date Jan. 12, 1993 (4-244916) "Indication Error Compensation Device of Meter Needle".
Erdman John L.
Stoner Marcus D.
Honeywell Inc.
Noland Thomas P.
Rubow Charles L.
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