Method and apparatus for a plurality of modules to independently read a single sensor

Two electronic modules are connected to share and to independently read the sensed value from a single environmental sensor element, by communicating between each other when a particular module is reading the sensor output signal. The sensor output signal is a function of the value of the reference...

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Bibliographic Details
Main Author MACKS; HAROLD RYAN
Format Patent
LanguageEnglish
Published 23.02.1999
Edition6
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
MEASURING
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
TARIFF METERING APPARATUS
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Summary:Two electronic modules are connected to share and to independently read the sensed value from a single environmental sensor element, by communicating between each other when a particular module is reading the sensor output signal. The sensor output signal is a function of the value of the reference voltage being applied by the reading module and the characteristics of the environment being sensed. A module provides a toggle signal when it completes its reading of the sensor so that the other (non-reading) module will know when it may apply its reference voltage to the sensor and complete its reading of the sensor. The modules alternate the reading of the sensor in order to eliminate the need for a plurality of corresponding sensors.
Bibliography:Application Number: US19970839931