CN2157523Y - Electronic induction test pencil - Google Patents
Electronic induction test pencil Download PDFInfo
- Publication number
- CN2157523Y CN2157523Y CN 93207312 CN93207312U CN2157523Y CN 2157523 Y CN2157523 Y CN 2157523Y CN 93207312 CN93207312 CN 93207312 CN 93207312 U CN93207312 U CN 93207312U CN 2157523 Y CN2157523 Y CN 2157523Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- test
- electronic induction
- triode
- 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.)
- Expired - Fee Related
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to an electronic induction test pencil, composed of a triode connected with a test contact head, a light-emitting diode, a current-limiting resistor, a hand-contact electrode. The utility model has the functions that the utility model tests whether the metal is electrified or not, the utility model tests fusion points in circuits, and the utility model tests positive-negative poles of a direct-current power supply. The utility model has the advantage of peculiar design. The utility model has multiple purposes by one pencil. The utility model is a multifunctional electronic induction test pencil.
Description
The utility model relates to a kind of improved Electronic Testing pen, and it is a kind of electronic induction test pen.
Existing test electroprobe mainly is composed in series by test contact, metal spring, current-limiting resistance, neon tube and hand touched electrode.When test contact contacts with tested metallic object, when anthropolith contacts with the hand touched electrode, whether just can test metallic object charged, when there is higher voltage in metallic object with respect to the earth, neon tube starter in the test pencil indicates tested metal charged, still, many electric equipments or household electrical appliance just can't be sought break point with existing test pencil when occurring opening circuit in the circuit.
The purpose of this utility model is at above-mentioned weak point, and a kind of multi-functional electronic induction test pens such as the break point of searching, test direct supply both positive and negative polarity that have are provided.
The utility model is achieved like this, it connects a circuit of being made up of triode (1), light emitting diode (3), direct supply (4) in test contact (A), test contact in this circuit (A) links to each other with the base stage of triode (1), be connected with a light emitting diode (3) on the triode (2), and connect power supply (4), current-limiting resistance (5) links to each other with hand touched electrode (B) by spring (7).
Come the utility model done below in conjunction with drawings and Examples and describe in further detail.
Accompanying drawing 1 is a structural drawing of the present utility model;
Accompanying drawing 2 is a circuit diagram of the present utility model.
With reference to accompanying drawing, strong and the good test contact (A) of physical strength is moulded casting in insulation crust (6) with an electric conductivity, test contact is made the screwdriver shape, shell (6) is made plastic casing, leave a garden cylindrical cavity in the shell, one end of test contact (A) is linked to each other with the base stage of triode (3), the emitter of triode (1) is connected in the base stage of triode (2), on the collector of triode (2), be connected with light emitting diode (3), and be connected with direct supply (4), current-limiting resistance (5) links to each other with hand touched electrode (B) by spring (7).
When detecting break point, as detecting the under blanket resistance wire, with the under blanket energising, hand-held electroprobe, make staff be contacted with hand touched electrode (B), test contact A end is tested along heating wire, under the normal condition, light emitting diode (3) is luminous, when diode is not luminous, is the striking point of heating wire herein.
When detecting the direct supply both positive and negative polarity, the test contact (A) and the hand touched electrode (B) that the two poles of the earth of DC electrode are connected to test pen are respectively held, if diode (3) is luminous, then test contact (A) is a positive source, and hand touched electrode (B) is a power cathode.
When detecting the fiery zero line of civil power, with test contact (A) osculatory (this moment, the people can not contact the hand touched electrode), if diode (2) is luminous, then test contact (A) end line is a live wire.
The utility model provides a kind of unique electronic induction test pen that designs, it promptly can test civil power fire zero line, whether metal object is charged, the striking point that also has the test detection line, the function of test direct supply both positive and negative polarity, also can test the quality of differentiating common triode and peanut capacitor, be a kind of multi-functional electronic induction test pen of one that is that collects.
Claims (2)
1, a kind of by test contact (A), shell (6), hand touched electrode (B), the electronic induction test pen that current-limiting resistance (5) is formed is characterized in that test contact (A) connects one by triode (1), light emitting diode (3), the circuit that direct supply (4) is formed.
2, electronic induction test pen according to claim 1 is characterized in that the base stage of triode (1) is connected in a upward connection light emitting diode (3) of triode (2) mutually with test contact (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93207312 CN2157523Y (en) | 1993-03-19 | 1993-03-19 | Electronic induction test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93207312 CN2157523Y (en) | 1993-03-19 | 1993-03-19 | Electronic induction test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157523Y true CN2157523Y (en) | 1994-02-23 |
Family
ID=33790066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93207312 Expired - Fee Related CN2157523Y (en) | 1993-03-19 | 1993-03-19 | Electronic induction test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157523Y (en) |
-
1993
- 1993-03-19 CN CN 93207312 patent/CN2157523Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |