Cable with LED connection indicator and methods of using same
An interconnection verification device for sensors and a software implementation of interconnection verification between cabling and sensors in large, multi-channel test configurations are disclosed. In a preferred embodiment the sensor assembly comprises a sensor and an indicator electrically connected inline with the sensor. In a preferred embodiment the indicator is an LED. In an even more preferred embodiment, the sensor is an IEPE.
1. An assembly comprising:
a sensor in electrical communication with a wire;
an indicator electrically connected inline with the sensor using the same wire;
a first power supply arranged to have a positive voltage;
a second power supply arranged to have a negative voltage;
a switch configured to toggle electrical communication between the wire and the first and second power supply;
a first diode in series with the sensor and arranged to allow current to flow through the sensor when current is flowing on the wire in a first direction; and
a second diode in series with the indicator and arranged to allow current to flow through the indicator when current is flowing on the wire in an opposite direction from the first direction.
2. The assembly of claim 1 , wherein the sensor is electrically connected with only two wires.
3. The assembly of claim 2 , wherein the sensor is an Integral Electronic Piezo Electric sensor.
4. The assembly of claim 1 , wherein the indicator is a light.
5. The assembly of claim 4 , wherein the indicator is a light-emitting diode (LED).
6. The assembly of claim 5 , wherein the light-emitting diode is an infrared light-emitting diode.
7. The assembly of claim 1 , wherein the indicator is turned on and off in parallel with a digital or signaling protocol.
8. The assembly of claim 7 , wherein the digital or signaling protocol supports a Transducer Electronic Data Sheet request.
9. The assembly of claim 1 , further comprising a wireless transmitter designed to wirelessly transmit status and/or measurement data from the sensor.
10. The assembly of claim 1 , further comprising a digital controller electrically connected inline with the sensor and between the indicator and the switch such that the digital controller receives power from the wire and controls power to the indicator.
11. A method of verifying a sensor circuit comprising the steps of:
placing a wire electrical communications with a first power supply and providing power over the wire to a sensor;
switching electrical communication of the wire from the first power supply to a second power supply;
providing power from the second power supply over the same wire;
preventing current flow to the sensor from the second power supply;
allowing current flow from the second power supply over the same wire to an indicator located proximal to the sensor; and
causing the indicator to indicate.
12. The method of claim 11 , wherein the switching step causes a current into the sensor circuit to reverse directions.
13. The method of claim 11 , wherein the sensor is an IEPE.
14. The method of claim 12 , wherein current flow is prevented from flowing to the sensor by at least one diode.
15. The method of claim 11 , wherein the indicator is a light emitting diode (LED).
16. An indicator assembly comprising:
a body;
a first wire and a second wire in electrical communication with a first electrical connector and a second electrical connector on opposite ends of the body respectively;
an indicator visible on the exterior of the body and in electrical communication with the first wire and the second wire; and
wherein the indicator is electrically connected in parallel with the first and second wires and the indicator is in series with at least one diode.
17. The indicator assembly of claim 16 , wherein the first electrical connector and second electrical connector are connected to only two wires.
18. The indicator assembly of claim 16 , wherein the indicator is a light.
19. The indicator assembly of claim 18 , wherein the indicator is a light-emitting diode (LED).
20. The indicator assembly of claim 19 , wherein the light-emitting diode is an infrared light-emitting diode.
21. The indicator assembly of claim 16 , wherein the indicator is designed to turn on and off in parallel with a digital or signaling protocol.
22. The indicator assembly of claim 21 , wherein the digital or signaling protocol supports a Transducer Electronic Data Sheet request.
23. A cable assembly comprising:
a cable including;
a first wire and a second wire in electrical communication with an electrical connector designed to mate with a sensor;
an indicator integrated into the cable and in electrical communication with the first wire and the second wire;
a first diode between the indicator and the first wire;
a second diode between the indicator and the second wire;
wherein the diodes are oriented to prevent current from flowing through the indicator when current is flowing to the sensor.