Selectable on-off logic modes for a sensor module
First Claim
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1. A sensor module, comprising:
- an outer module housing having an inlet adapted for fluid communication with a fluid, and having an electrical feedthrough to provide energization contacts, a serial output contact and logic level contacts;
a transducer circuit located within the module housing having a sensor for sensing a fluid characteristic, a regulator coupled to the energization contacts, and a transceiver adapted to couple a serial representation of the sensed fluid characteristic to the serial output contact; and
a logic circuit coupled to the transducer circuit, wherein the logic circuit has a selectable first mode of operation in which the logic circuit generates ON-OFF logic levels on the logic level contacts, and a selectable second mode of operation in which the logic circuit detects ON-OFF logic levels on the logic level contacts.
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Abstract
A sensor module has an outer module housing with an fluid inlet and a feedthrough with five electrical contacts. A transducer circuit in the module has a sensor connected to the inlet, a regulator connected to contacts 1, 2 and a transceiver providing a serial output to contact 3. A logic circuit is selectable to a first mode of operation in which the logic circuit generates ON-OFF logic levels on contacts 4, 5 or it can be selected to a second mode of operation in which the logic circuit detects ON-OFF logic levels on the contacts 4, 5.
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16 Claims
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1. A sensor module, comprising:
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an outer module housing having an inlet adapted for fluid communication with a fluid, and having an electrical feedthrough to provide energization contacts, a serial output contact and logic level contacts;
a transducer circuit located within the module housing having a sensor for sensing a fluid characteristic, a regulator coupled to the energization contacts, and a transceiver adapted to couple a serial representation of the sensed fluid characteristic to the serial output contact; and
a logic circuit coupled to the transducer circuit, wherein the logic circuit has a selectable first mode of operation in which the logic circuit generates ON-OFF logic levels on the logic level contacts, and a selectable second mode of operation in which the logic circuit detects ON-OFF logic levels on the logic level contacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A sensor module, comprising:
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an outer module housing having an inlet for receiving a fluid, and having a feedthrough with energization contacts, a serial output contact and logic level contacts;
a transducer circuit having a regulator coupled to the energization contacts, having a sensor coupled to the inlet, and having a transceiver adapted to couple a serial representation of a sensed fluid characteristic to the serial output contact; and
means coupled to the transducer circuit, the means being selectable to a first mode of operation. in which the means generates ON-OFF logic levels on the logic level contacts, and the means being selectable to a second mode of operation in which the means detects ON-OFF logic levels on the logic level contacts.
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16. A method of providing selectable logic modes in a sensor module, comprising:
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providing energization contacts, a serial input/output contact and logic level contacts in an electrical feedthrough formed in an outer module housing having an inlet adapted for fluid communication with a fluid;
installing a transducer circuit in the outer module housing, the transducer circuit having a regulator coupled to the energization contacts, having a sensor coupled to the inlet, and having a transceiver adapted to couple a serial representation of a sensed fluid characteristic to the serial input/output contact; and
installing a logic circuit in the outer module housing, the logic circuit coupling to the transducer circuit and being selectable to a first mode of operation in which the logic circuit generates ON-OFF logic levels on the logic level contacts, and the logic circuit being selectable to a second mode of operation in which the logic circuit detects ON-OFF logic levels on the logic level contacts.
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Specification