Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1983-01-18
1984-11-20
Gill, James J.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73 4R, 73708, 73756, 339 16R, 361415, G01L 1500, G01L 1904, G01L 2700
Patent
active
044831781
ABSTRACT:
A general purpose pneumatic-digital converter system and method for process control or the like. A chassis includes a plurality of pneumatic connectors interconnected to pressure lines to be monitored and a pc motherboard carrying a plurality of electrical connectors. At least one pressure-digital module assembly has pneumatic and electrical connectors disposed thereon whereby simultaneous connection is made to corresponding connectors on the chassis when the module is plugged in. Each module may contain a pressure transducer, analog-digital converter, and E.sup.2 PROM wherein data is stored to compensate for non-linearities, offsets, gains, etc. of the transducer and converter. An additional electrical connector is provided on the motherboard proximal to each of the electrical connectors which are intended for a corresponding module assembly connector, whereby additional pc boards for signal processing, communication, memory, or the like may be plugged into the motherboard. The motherboard and electrical connectors are in standard bus format whereby intercommunication is enabled between pc boards and module assemblies plugged into the motherboard.
REFERENCES:
patent: 3790910 (1974-02-01), McCormack
patent: 4133022 (1979-01-01), Moore et al.
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