CN101738533A - Test pencil with illumination and sounding functions - Google Patents
Test pencil with illumination and sounding functions Download PDFInfo
- Publication number
- CN101738533A CN101738533A CN200810202670A CN200810202670A CN101738533A CN 101738533 A CN101738533 A CN 101738533A CN 200810202670 A CN200810202670 A CN 200810202670A CN 200810202670 A CN200810202670 A CN 200810202670A CN 101738533 A CN101738533 A CN 101738533A
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- Prior art keywords
- amplifier
- light emitting
- neon tube
- test
- emitting diodes
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- 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.)
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Abstract
The invention relates to a test pencil with illumination and sounding functions. In an insulating shell, a test contact, a neon tube, a current-limiting resistor and a touch electrode are sequentially connected, wherein both ends of the neon tube are respectively connected with two input ends of an amplifier, a power supply end of the amplifier is connected with a button battery, and the output end of the amplifier is connected with a buzzer. During testing, when a human hand touches the touch electrode and the test contact contacts a charged object, the neon tube is lighted up and current amplified by an electronic amplifying circuit enables the buzzer produces to sound. In addition, a connecting part of the insulating shell and the test contact is provided with a circle of light emitting diodes connected with a signal output end of the amplifier, and a switch connected with the light emitting diodes is arranged on the shell so as to control the on-off of the light emitting diodes by utilizing the switch. A tested object can be identified to be charged or not through the shining of the neon tube and can also be judged through the prompt sound of the buzzer. When the test pencil is used in a place with weak light, surroundings can be lighted up through turning on the light emitting diodes.
Description
Technical field
The present invention relates to a kind of test pencil, particularly relate to and a kind ofly the time can send the test pencil of prompting sound with illumination functions and in test.
Background technology
At present, known test pencil structure is to be in series by test contact, current-limiting resistance, neon tube, metal spring and hand touched electrode.Test contact is contacted with measured object, staff contact hand touched electrode, when measured object has high voltage relative to the earth, the neon tube starter, the expression measured object is charged.But the light that neon tube sent is very dim, does not see Chu in the strong place of light easily, causes erroneous judgement; Be difficult to because not seeing the position of Chu's test pencil again use in the very faint place of light, even the danger of electric shock is arranged.
Summary of the invention
Technical matters to be solved by this invention is: whether luminous and in light faint place do not see Chu test pencil position unworkable problem in order to overcome test pencil if not seeing Chu's neon tube in the strong place of light, the invention provides a kind of test pencil, not only the neon tube luminous while of energy can also be sent prompting sound prompting user to this test pencil when test.The place ahead is illuminated in the effect that can play electric torch at faint this test pencil of place of light, the convenient use.
To achieve these goals, technical scheme of the present invention is as follows:
In insulation crust, test contact, neon tube, current-limiting resistance and hand touched electrode are linked in sequence, and the neon tube two ends connect two input ends of amplifier respectively, and the feeder ear of amplifier connects button cell, and the output terminal of amplifier connects hummer.During test, when staff contact hand touched electrode, during test contact contact electrification object, the neon tube starter, electric current makes the hummer sounding after electronic amplification circuit amplifies simultaneously.In addition, one circle light emitting diode is installed in the junction of insulation crust and test contact, light emitting diode connects the signal output part of amplifier, and a switch connection light emitting diode is installed on insulation crust, reaches the purpose of opening and closing of utilizing switch control light emitting diode.
The invention has the beneficial effects as follows: can not only come the interpretation testee whether charged by the luminous of neon tube in the strong place of light, can also judge by the prompting sound that hummer sends.Can be installed in around light emitting diode on the insulation crust illuminates convenient the use by unlatching in the faint place of light.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the front view of the test pencil of band illumination and sounding.
Fig. 2 is the left view of Fig. 1.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Embodiment 1:
Among Fig. 1, in insulation crust 2, test contact 1 links to each other with neon tube 4, current-limiting resistance 6, hand touched electrode 3 orders.When test contact 1 contact electrification object, during staff contact hand touched electrode 3, electric current is by test contact 1 neon tube 4 of flowing through, neon tube 4 starters, and electric current makes hummer 7 sounding through after the amplification of electronic amplification circuit 5 simultaneously.
Embodiment 2:
Among Fig. 1, a switch 9 is installed on the insulation crust 2, switch 9 connects light emitting diode 8, and light emitting diode 8 connects the signal output part of electronic amplification circuit.When switch 9 closures, light emitting diode 8 electrified light emittings; When switch 9 disconnections, light emitting diode 8 outages stop luminous.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind with the illumination and the test pencil of sounding, in insulation crust, test contact, neon tube, current-limiting resistance and hand touched electrode are linked in sequence, it is characterized in that: described neon tube two ends connect two input ends of amplifier respectively, the feeder ear of amplifier connects button cell, and the output terminal of amplifier connects hummer.
2. a kind of test pencil with illumination and sounding according to claim 1 is characterized in that: the junction of described insulation crust and test contact is provided with a circle light emitting diode, and light emitting diode connects the signal output part of described amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810202670A CN101738533A (en) | 2008-11-13 | 2008-11-13 | Test pencil with illumination and sounding functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810202670A CN101738533A (en) | 2008-11-13 | 2008-11-13 | Test pencil with illumination and sounding functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101738533A true CN101738533A (en) | 2010-06-16 |
Family
ID=42462266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810202670A Pending CN101738533A (en) | 2008-11-13 | 2008-11-13 | Test pencil with illumination and sounding functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101738533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199146A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Electroscope |
-
2008
- 2008-11-13 CN CN200810202670A patent/CN101738533A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199146A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Electroscope |
| CN106199146B (en) * | 2015-04-30 | 2023-10-31 | 中国石油天然气股份有限公司 | electroscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |