CA2607922A1 - Self-test probe design and method for non-contact voltage detectors - Google Patents
Self-test probe design and method for non-contact voltage detectors Download PDFInfo
- Publication number
- CA2607922A1 CA2607922A1 CA 2607922 CA2607922A CA2607922A1 CA 2607922 A1 CA2607922 A1 CA 2607922A1 CA 2607922 CA2607922 CA 2607922 CA 2607922 A CA2607922 A CA 2607922A CA 2607922 A1 CA2607922 A1 CA 2607922A1
- Authority
- CA
- Canada
- Prior art keywords
- self
- test
- detection circuit
- contact voltage
- voltage detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Transceivers (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
A non-contact voltage detector having a self-test feature is provided. The non-contact voltage detector may include an antenna, a detection circuit and a self-test circuit. The self-test circuit may be configured to send a test signal through a portion of the antenna and to the detection circuit. Alternatively, the self-test circuit may be configured to send a test signal to the detection circuit without sending it through a portion of the antenna.
Claims (23)
1. A non-contact voltage detector comprising:
an antenna;
a detection circuit coupled to the antenna, the detection circuit being configured to detect an electrical signal received by the antenna; and a self-test circuit coupled to the detection circuit, the self-test circuit being configured to send a test signal to the detection circuit.
an antenna;
a detection circuit coupled to the antenna, the detection circuit being configured to detect an electrical signal received by the antenna; and a self-test circuit coupled to the detection circuit, the self-test circuit being configured to send a test signal to the detection circuit.
2. The non-contact voltage detector of claim 1, further comprising a power supply coupled to the detection circuit and the self-test circuit.
3. The non-contact voltage detector of claim 1, further comprising a signaling device, wherein the detection circuit is configured to activate the signaling device when the detection circuit detects an electrical signal.
4. The non-contact voltage detector of claim 3, wherein the signaling device is an LED or a speaker.
5. The non-contact voltage detector of claim 1, wherein the detection circuit is configured to allow a user to control the sensitivity of the detection circuit.
6. The non-contact voltage detector of claim 5, wherein the detection circuit comprises a variable resistor.
7. The non-contact voltage detector of claim 1, wherein the self-test circuit is configured to allow a user to select the amplitude of the test signal.
8. The non-contact voltage detector of claim 7, wherein the self-test circuit includes a variable resistor.
9 9. The non-contact voltage detector of claim 1, wherein the self-test circuit is configured to send additional test signals to the detection circuit at periodic intervals.
10. The non-contact voltage detector of claim 1, wherein the self-test circuit is connected to an electrical path between the antenna and the detection circuit.
11. The non-contact voltage detector of claim 1, wherein the self-test circuit is connected to a first portion of the antenna, and the detection circuit is connected to a second portion of the antenna.
12. A non-contact voltage detector comprising:
an antenna;
a signaling device;
a detection circuit connected to a first portion of the antenna and the signaling device, the detection circuit being configured to activate the signaling device when the detection circuit detects an electrical signal received by the antenna; and a self-test circuit connected to a second portion of the antenna, the self-test circuit being configured to send a test signal to the antenna.
an antenna;
a signaling device;
a detection circuit connected to a first portion of the antenna and the signaling device, the detection circuit being configured to activate the signaling device when the detection circuit detects an electrical signal received by the antenna; and a self-test circuit connected to a second portion of the antenna, the self-test circuit being configured to send a test signal to the antenna.
13. The non-contact voltage detector of claim 12 wherein the self-test circuit includes a variable resistor enabling a user to select the amplitude of the test signal.
14. The non-contact voltage detector of claim 12 wherein the signaling device is an LED or a speaker.
15. The non-contact voltage detector of claim 12 wherein the detection circuit includes a variable resistor enabling a user to control the sensitivity of the detection circuit.
16. The non-contact voltage detector of claim 12, further comprising:
a power supply; and a switch configured to selectively couple and decouple the power supply to the self-test circuit.
a power supply; and a switch configured to selectively couple and decouple the power supply to the self-test circuit.
17. The non-contact voltage detector of claim 16 wherein the self-test circuit is configured to send the test signal when the switch couples the power supply to the self-test circuit.
18. The non-contact voltage detector of claim 16 wherein the switch is an electronically controlled switch.
19. The non-contact voltage detector of claim 17 wherein the self-test circuit is configured to send additional test signals at periodic intervals during a time the switch couples the power supply to the self-test circuit.
20. A method of self-testing a non-contact voltage detector in which an antenna is coupled to a self-test circuit, the self-test circuit is coupled to a detection circuit and a power supply is coupled to the self-test circuit and the detection circuit, the method comprising:
sending a test signal from the self-test circuit to the detection circuit;
receiving the test signal at the detection circuit; and detecting the test signal in the detection circuit.
sending a test signal from the self-test circuit to the detection circuit;
receiving the test signal at the detection circuit; and detecting the test signal in the detection circuit.
21. The method according to claim 20, further including: alerting a user when the test signal is detected.
22. The method according to claim 20, further including: selecting the amplitude of the test signal.
23. The method according to claim 20 wherein sending a test signal from the self-test circuit to the detection circuit includes sending the test signal through a portion of the antenna.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/897867 | 2007-08-31 | ||
| US11/897,867 US7733078B2 (en) | 2006-09-05 | 2007-08-31 | Self-test probe design & method for non-contact voltage detectors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2607922A1 true CA2607922A1 (en) | 2009-02-28 |
| CA2607922C CA2607922C (en) | 2011-07-26 |
Family
ID=40385208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2607922A Active CA2607922C (en) | 2007-08-31 | 2007-10-26 | Self-test probe design and method for non-contact voltage detectors |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2607922C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9146262B2 (en) | 2012-08-02 | 2015-09-29 | Textron Innovations Inc. | Non-contact, hand-held voltage detector |
| CN108646083A (en) * | 2018-07-12 | 2018-10-12 | 广东电网有限责任公司 | A kind of remote sensing electroscopic device |
-
2007
- 2007-10-26 CA CA2607922A patent/CA2607922C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9146262B2 (en) | 2012-08-02 | 2015-09-29 | Textron Innovations Inc. | Non-contact, hand-held voltage detector |
| CN108646083A (en) * | 2018-07-12 | 2018-10-12 | 广东电网有限责任公司 | A kind of remote sensing electroscopic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2607922C (en) | 2011-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7733078B2 (en) | Self-test probe design & method for non-contact voltage detectors | |
| US5790035A (en) | Reusable temperature and wetness alarm device for the diaper | |
| EP1840790A3 (en) | Transponder detector for an RFID system generating a progression of detection signals | |
| WO2006059336A3 (en) | Position detecting system and apparatuses and methods for use and control thereof | |
| WO2006081046A3 (en) | Dual-mode detection of powered device in power over ethernet system | |
| WO2001069946A8 (en) | Dsx illuminator | |
| AU2009331596A8 (en) | Method for detecting an electric arc in photovoltaic equipment | |
| WO2008034867A3 (en) | Device and method for detecting an anomaly in an assembly of a first and a second object | |
| FI124896B (en) | Remote voltage detector in a power grid and voltage detection method | |
| ZA200804016B (en) | Object detection system | |
| CA2531886A1 (en) | Multiple sensor vehicle occupant detection for air bag deployment control | |
| EP2325974A3 (en) | Feed control device | |
| CA2523931A1 (en) | Detection device | |
| EP2618318A3 (en) | Alarm device | |
| ATE286289T1 (en) | APPARATUS FOR DETECTING AND REPORTING ADVERSE CONDITIONS | |
| JP2009515195A5 (en) | ||
| EP1898212A3 (en) | Oxygen concentration detection system and vehicle control system having the same | |
| WO2006068831A3 (en) | Scanner with vertical plate force detection and compensation | |
| CA2607922A1 (en) | Self-test probe design and method for non-contact voltage detectors | |
| TW200741225A (en) | Jitter measuring device, electronic device and testing device | |
| EP2436118A1 (en) | Sensor device and method for the detection of a gripping of a hand-held device as well as a hand-held device | |
| WO2006083475A8 (en) | Dual sensing intrusion detection method and system with state-level fusion | |
| WO2006081291A3 (en) | Combination material level monitor | |
| TW200641335A (en) | Flame detector | |
| TW200714254A (en) | Apparatus for measuring blood pressure and the measuring method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |