CN2224425Y - universal test pencil - Google Patents
universal test pencil Download PDFInfo
- Publication number
- CN2224425Y CN2224425Y CN 95218702 CN95218702U CN2224425Y CN 2224425 Y CN2224425 Y CN 2224425Y CN 95218702 CN95218702 CN 95218702 CN 95218702 U CN95218702 U CN 95218702U CN 2224425 Y CN2224425 Y CN 2224425Y
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- CN
- China
- Prior art keywords
- test
- test pencil
- contact
- pencil
- utility
- 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 Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a universal test pencil, comprising a casing, a test contact head and two output poles, wherein, one output pole is connected with the test contact head through a capacitor C; the other output pole is connected with the test contact head through a resistance R and a diode; two output poles are connected with one end of the neon tube in the test pencil through a plug and a jack which is arranged on the test pencil. The utility model has more than ten kinds of functions that the utility model can be used for testing the voltage between the lines, distinguish the alternating current and the direct current, test the short circuit of an alternating current circuit whether or not and the failure point of the absent phase of the three phase power supply, verify a power factor meter, distinguish the quality of the diode, differentiate the anode and the cathode, distinguish the quality of a miniature capacitor, etc.
Description
The utility model relates to a kind of electrician and uses testing tool, relates to a kind of can be used for specifically circuit and each electric appliances are carried out the omnipotent Test pencil that many index detects.
In daily life and work, particularly carrying out the power construction installation, in the work such as high and low electrical equipment installation, maintenance, debugging, for the mensuration of three-phase system phase sequence, whether the electric leakage of electrical equipment, cable, and the detection of the opening circuit of circuit, short circuit, ground connection all needs to detect.For different test items, generally need to adopt different testing tools or instrument, instrument to detect.As the mensuration for the three-phase system phase sequence, at present three-phase system phase sequence analyzers that adopt just can be measured after the wiring of also must at first operating a switch when measuring more, and measurement finishes, and secondary is operated a switch and taken out stitches.And this instrument not only costs an arm and a leg, also exist function singleness, volume big, carry weak point such as inconvenience.Need when detecting some to detect, and for the detection of some microcapacitors, existing universal meter is often not competent again with universal meter as electronic components such as diode, electric capacity.Just because of this, vast electrical equipment installation, maintenance personnel press for can be had a kind of simple in structurely, carries, easy to use, and the testing tool that function is comparatively complete appears on the market.
The purpose of this utility model is exactly to provide a kind of simple in structure for the need of work that satisfies above-noted persons, carries, easy to use the omnipotent Test pencil that function is comparatively complete.
The purpose of this utility model can adopt following measure to realize:
Omnipotent Test pencil of the present utility model comprises shell, a test contact and two output stages, and one of them output stage is connected with test contact by capacitor C, and another output stage is connected with test contact with diode by resistance R; Two output stages by plug be arranged on test pencil on jack and test pencil in an end of neon tube be connected.
The negative pole of diode is connected with test contact in the utility model, and its positive pole is connected with output stage by resistance; Pass through the very alternating current test utmost point of output that capacitor C and test contact join in two output stages, the output of joining by resistance R and diode and test contact is the direct current test pole very.
The test pencil that the test pencil that relates in the utility model is made up of plastic casing, test contact, current-limiting resistance, neon tube and hand touched electrode is provided with a jack at the end of test pencil, also is provided with jack at the contact jaw of current-limiting resistance and neon tube.
Product of the present utility model has been for vast electrical equipment installation, maintenance personnel provide a kind of simple in structure, carries, testing tool easy to use, multiple functional.Can detect the phase sequence (comprising 6 phase phase sequences) of the following alternating current of 500V with it, detect voltage between lines, distinguish AC and DC, detect whether opening circuit of alternating current circuit, three-phase supply open-phase fault point, the verification power factor meter is differentiated the quality of diode quality and is distinguished positive and negative electrode, and the tens kinds of functions such as quality that can be used to differentiate the microcapacitor quality.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the utility model structural front view.
Fig. 2 is the user mode reference diagram that the utility model is used for detecting phase sequence.
Fig. 3 is the user mode reference diagram that the utility model is used for detecting alternating circuit wiring correctness.
Fig. 4 is the user mode reference diagram that the utility model is used for detecting DC voltage, insulation resistance, lead break-make.
The utility model is done with detailed description below with reference to embodiment (accompanying drawing):
As shown in Figure 1, omnipotent Test pencil of the present utility model comprises shell (1), a test contact (4) and two output stages (2) (3), and one of them output stage (3) is connected with test contact (4) by capacitor C; Another output stage (2) is connected with test contact (4) with diode D by resistance R 1, and the negative pole of diode is connected with test contact, and its positive pole is connected with output stage by resistance; Two output stages by plug (5) (6) be arranged on test pencil (7) on jack (8) (9) and test pencil in the end of neon tube G be connected; In two output stages to pass through the output stage (3) that capacitor C and test contact (4) join be the alternating current test utmost point, the output stage (2) that joins by resistance R 1 and diode D and test contact (4) is the direct current test pole; The end of neon tube G in two output stages can be provided with a jack (8) or be arranged on current-limiting resistance and neon tube by the end of test pencil (7) contact jaw jack (9) and the test pencil (7) is connected.
Fig. 2 is a kind of user mode reference diagram of the utility model.As shown in the figure, the alternating current test utmost point of its Test pencil and test pencil also connect, and the attachment plug that is about to output stage is inserted in the side direction connecting hole of test pencil, and this method of attachment can be used to the phase sequence of testing circuit.R2 is the current-limiting resistance in the test pencil among the figure, and G is the neon tube in the test pencil, and R3 is operator's human body resistance, and C is the electric capacity in the Test pencil.Its method of operating is as follows: take Test pencil on the other hand, take test pencil (finger will contact with the hand touched electrode of test pencil afterbody) on the other hand, when in the middle of Test pencil test contact and the three-phase power line mutually during the B contact, just have a capacitance current Ic and go into ground by neon tube, human body, make neon tube shinny; Contact with arbitrary limit in other two-phase (keep Test pencil test contact and three-phase power line centre B contact) mutually with the test contact of test pencil this moment again, and resistor current Ir goes into ground by neon tube, human body, and Ic and Ir are that vector synthesizes.As test pencil and limit A contact mutually, Ir and Ic synthesize after-current I=1.9Ic, so neon tube brightness strengthens; As test pencil and limit C contact mutually, Ir and Ic synthesize after-current I=0.5Ic, so the neon tube brightness deterioration reaches the purpose of distinguishing phase sequence.
R2 is the current-limiting resistance in the test pencil among Fig. 3; G is the neon tube in the test pencil; C is the electric capacity in the Test pencil.R2 is the current-limiting resistance in the test pencil among Fig. 4; G is the neon tube in the test pencil; R1 is the resistance in the Test pencil; D is the diode in the Test pencil.
Claims (5)
1, a kind of omnipotent Test pencil, it is characterized in that: it comprises shell (1), a test contact (4) and two output stages (2) (3), one of them output stage (3) is connected with test contact (4) by capacitor C, and another output stage (2) is connected with test contact (4) with diode D by resistance R 1; Two output stages by plug (5) (6) be arranged on test pencil (7) on jack and test pencil in the end of neon tube G be connected.
2, omnipotent Test pencil according to claim 1 is characterized in that: the negative pole of diode D is connected with test contact (4), and its positive pole is connected with output stage (2) by resistance R 1.
3, omnipotent Test pencil according to claim 1 is characterized in that: the output stage (3) that joins by capacitor C and test contact (4) is the alternating current test utmost point.
4, omnipotent Test pencil according to claim 1 is characterized in that: the output stage (3) that joins by resistance R 1 and diode and test contact (4) is the direct current test pole.
5, omnipotent Test pencil according to claim 1 is characterized in that: the end of test pencil (7) is provided with a jack (8), also is provided with jack (9) at the contact jaw of current-limiting resistance and neon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218702 CN2224425Y (en) | 1995-08-08 | 1995-08-08 | universal test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218702 CN2224425Y (en) | 1995-08-08 | 1995-08-08 | universal test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224425Y true CN2224425Y (en) | 1996-04-10 |
Family
ID=33867144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95218702 Expired - Fee Related CN2224425Y (en) | 1995-08-08 | 1995-08-08 | universal test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224425Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970062A (en) * | 2012-11-29 | 2014-08-06 | 洛克威尔自动控制技术股份有限公司 | Circuit that deciphers between AC and DC input signals |
-
1995
- 1995-08-08 CN CN 95218702 patent/CN2224425Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970062A (en) * | 2012-11-29 | 2014-08-06 | 洛克威尔自动控制技术股份有限公司 | Circuit that deciphers between AC and DC input signals |
| EP2738560A3 (en) * | 2012-11-29 | 2018-01-31 | Rockwell Automation Asia Pacific Business Ctr. Pte., Ltd. | Circuit that deciphers between AC and DC input signals |
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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 |