Multiple pressure sensing system
First Claim
1. A pressure sensing system adapted for measuring a plurality of pressures, said system comprising:
- a plurality of pressure sensing assemblies each positioned to be exposable to a corresponding one of a plurality of discrete environments exhibiting a corresponding one of said plurality of pressures to be measured and varying in at least one degree of hostility;
a microcontroller; and
, at least one switching device coupled between each of said plurality of pressure sensing assemblies and said microcontroller for selectively coupling each of said plurality of pressure sensing assemblies to said microcontroller in a predetermined sequence responsively to said microcontroller, wherein each of said pressure sensing assemblies includes first and second outputs, and said at least one switching device comprises a first switching device coupled between said first output of each of said plurality of pressure sensing assemblies and said microcontroller and a second switching device coupled between said second output of each of said plurality of pressure sensing assemblies and said microcontroller.
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Abstract
A method for measuring multiple pressures and a pressure sensing system for accomplishing the same. The method for measuring a plurality of pressures includes, exposing each of a plurality of pressure sensors to a corresponding plurality of environments each having a corresponding pressure to be measured, determining how frequently to measure each of the plurality of pressures, determining a sequence for utilizing the pressure sensors to measure the corresponding plurality of pressures, the sequence being dependent upon the determined frequency for each of the plurality of pressures and selectively utilizing each of the plurality of pressure sensors according to the determined sequence to measure the pressure to which it is exposed.
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Citations
17 Claims
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1. A pressure sensing system adapted for measuring a plurality of pressures, said system comprising:
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a plurality of pressure sensing assemblies each positioned to be exposable to a corresponding one of a plurality of discrete environments exhibiting a corresponding one of said plurality of pressures to be measured and varying in at least one degree of hostility;
a microcontroller; and
,at least one switching device coupled between each of said plurality of pressure sensing assemblies and said microcontroller for selectively coupling each of said plurality of pressure sensing assemblies to said microcontroller in a predetermined sequence responsively to said microcontroller, wherein each of said pressure sensing assemblies includes first and second outputs, and said at least one switching device comprises a first switching device coupled between said first output of each of said plurality of pressure sensing assemblies and said microcontroller and a second switching device coupled between said second output of each of said plurality of pressure sensing assemblies and said microcontroller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for measuring a plurality of pressures comprising the steps of:
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exposing each of a plurality of pressure sensors to a corresponding one of a plurality of discrete environments varying in degree of hostility and each exhibiting a corresponding one of said pressures to be measured;
determining how frequently to measure each of said corresponding pressures with said pressure sensors;
determining a sequence for utilizing said pressure sensors to measure said corresponding plurality of pressures, said sequence being dependent upon said determined frequency for measuring each of said corresponding pressures; and
,selectively coupling each of said plurality of pressure sensors to a microcontroller according to said determined sequence. - View Dependent Claims (13, 14, 15, 16, 17)
generating a first value at least partially indicative of a first of said corresponding pressures utilizing said microcontroller and a first of said pressure sensors, wherein said first pressure sensor is exposed to a first of said plurality of environments having said first corresponding pressure;
determining a first degree of hostility of said first environment; and
,adjusting said first value responsively to said determined first degree of hostility using said microcontroller.
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15. The method of claim 14, further comprising the step of:
generating a control signal to which said selective coupling is responsive to.
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16. The method of claim 14, further comprising the step of:
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generating a second value at least partially indicative of a second of said corresponding pressures utilizing said microcontroller and a second of said pressure sensors, wherein said second pressure sensor is exposed to a second of said plurality of environments having said second corresponding pressure;
determining a second degree of hostility of said second environment; and
,adjusting said second value responsively to said determined second degree of hostility using said microcontroller.
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17. The method of claim 16, wherein said step of adjusting said first value is independent of said step of adjusting said second value.
Specification