CN202256500U - Pen-shaped digital ohm single-purpose gauge - Google Patents
Pen-shaped digital ohm single-purpose gauge Download PDFInfo
- Publication number
- CN202256500U CN202256500U CN201120336757XU CN201120336757U CN202256500U CN 202256500 U CN202256500 U CN 202256500U CN 201120336757X U CN201120336757X U CN 201120336757XU CN 201120336757 U CN201120336757 U CN 201120336757U CN 202256500 U CN202256500 U CN 202256500U
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- pen
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- strokes
- stroke
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Abstract
The utility model relates to a measuring device for displaying resistance values, in particular to a pen-shaped digital ohm single-purpose gauge, which is used for solving the problem that the conventional universal meter used by technical personnel for testing resistance values is inconvenient to carry and use. The pen-shaped digital ohm single-purpose gauge comprises a pen-shaped shell, wherein a testing pen point is arranged at the front end of the shell, and is connected with a spring, a battery, a resistance testing circuit, a socket and a grounded pen point in sequence towards the inside. Compared with the conventional product, the pen-shaped digital ohm single-purpose gauge has the beneficial effects that: the pen-shaped shell is used, and various elements are integrated in the pen-shaped shell, so that the single-purpose gauge is of a shape similar to that of an ordinary neon-electroscope or pen, is in a small size, is convenient to carry, and can be carried in a pocket like a neon-electroscope; operation is easy, and power is saved; and errors are small, single measuring ranges and single resistance parameters are displayed, and data are compact.
Description
Technical field
The utility model relates to a kind of measurement mechanism that shows resistance, specifically is that a kind of form of a stroke or a combination of strokes numeral ohm is single with table.
Background technology
At present, known test pencil is whether the test measured object is charged, is not available to test resistance.But carry easily, use simple.Known multimeter volume is big, but can not as electroscope, take with oneself all the time, brings very big inconvenience to measurement like this.It is many that present multimeter is pursued function as far as possible; AC/DC voltage; In the tables that coexist such as AC/DC electric current, resistance, electric capacity, inductance, buzzing, diode, triode, signal generator; A lot of parameters are that our most of the time institute is unwanted, and we more often only want to read resistance or the electrical leakage of circuit in the circuitry.Power consumption is big: the integrated function of multimeter is many, a-table-multi-purpose, and circuit is many, and power consumption is big, and it is bigger to use single-chip microcomputer to do the multimeter power consumption of A/D converter.Measuring accuracy is low, and interface and switch are many, causes contact resistance big, influences measuring accuracy.Operation inconvenience, the many misoperationes easily of gear.The local damage easily that environment is bad.
Summary of the invention
The utility model comes the test resistance value to carry and awkward problem for the technical solution personnel use existing multimeter, provides a kind of form of a stroke or a combination of strokes numeral ohm single with table.
The utility model is to adopt following technical scheme to realize: a kind of form of a stroke or a combination of strokes numeral ohm is single with table; Structure comprises the shell of the form of a stroke or a combination of strokes; At the shell front end test nib is housed, the test nib inwardly is connected with spring, battery, resistance test circuit, socket, ground connection nib in turn; Described resistance test circuit comprises A/D converter; A/D Acquisition Circuit, LCD MODULE, energising/reading hold button circuit, A/D converter connect A/D Acquisition Circuit, LCD MODULE, energising/reading hold button circuit respectively, and described A/D Acquisition Circuit is connected with the ground connection nib with the test nib.
The end of shell is provided with two sockets, and the ground connection test pencil inserts different sockets to select different resistance gears.
Compare with existing product, the beneficial effect of the utility model is: used the shell of the form of a stroke or a combination of strokes, various components and parts are integrated in the form of a stroke or a combination of strokes housing; Similar common test pencil of shape or pen, volume is little, and is easy to carry; Can as electroscope can carry on one's body, be inserted in the pocket; Simple to operate, power saving: error is little, single range, and single resistance parameter shows that data are succinct.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the circuit theory diagrams of the utility model
Among the figure: 1-tests nib, the 2-spring, and 3-locate the storehouse, and 4, the 5-socket, 6-resistance test circuit, 7-ground connection is written, 8-shell, 9-battery, 10-A/D Acquisition Circuit, 11-A/D converter, 12-LCD MODULE, 13-energising/reading hold button circuit.
Embodiment
Meaning as shown in Figure 1; A kind of form of a stroke or a combination of strokes numeral ohm is single with table; Structure comprises the shell 8 of the form of a stroke or a combination of strokes, at shell 8 front ends test nib 1 is housed, test nib 1 inwardly is connected with spring 2, battery 9, resistance test circuit 6, socket, ground connection nib 7, meaning as shown in Figure 2 in turn; Described resistance test circuit 6 comprises A/D converter 11; A/D Acquisition Circuit 10, LCD MODULE 12, energising/reading hold button circuit 13, A/D converter 11 connect A/D Acquisition Circuit 10, LCD MODULE 12, energising/reading hold button circuit 13 respectively, and described A/D Acquisition Circuit 10 is connected with ground connection nib 7 with test nib 1.
Be provided with storehouse 3, location in the shell 8 of the described form of a stroke or a combination of strokes, described spring 2, battery 9, resistance test circuit 6 are fixed on the storehouse 3, location.Each circuit elements device is installed in the storehouse, location like this, fills in the shell of the form of a stroke or a combination of strokes and insulation-encapsulated from shell 8 rear ends again, installs succinct.Housing is the bakelite material, and is durable.
Described socket is positioned at the end of housing 8, and quantity is two, is 2K Ω resistance grade and 200K Ω resistance grade, and one is used to measure the following resistance value of 2K Ω, one and is used to measure the following resistance value of 200K Ω, does not establish GSS Gear Select Switch.The one of which socket is connected with the ground connection test pencil; With ground connection test pencil contact circuit-under-test one end, an a property numeral ohm single nib with table contacts measured electric circuit inspection point, presses the button and reads resistance value, and release button reads the resistance readings that keeps demonstration.A/D converter adopts GC7240B type integrated circuit during practical implementation, joins a small amount of components and parts outward.Battery adopts two joint AG5 type button cells.
Body has only a pushbutton switch; When button was pressed, power connection was avoided unnecessary waste electric energy; Button unclamps promptly cuts off the electricity supply; Connect the reading holding circuit simultaneously, capacitor discharge is kept meter reading and is shown 2-3 second, is applicable to that the place of the narrow and small inconvenient reading in place and space of down-hole, dark is used.Can at will insert a section lead when ground connection nib is not with at one's side replaces the ground connection test pencil to use.
Claims (4)
1. form of a stroke or a combination of strokes numeral ohm is single with table; It is characterized in that: structure comprises the shell (8) of the form of a stroke or a combination of strokes; At shell (8) front end test nib (1) is housed, test nib (1) inwardly is serially connected with spring (2), battery (9), resistance test circuit (6), socket, ground connection nib (7) successively; Described resistance test circuit (6) comprises A/D converter (11); A/D Acquisition Circuit (10), LCD MODULE (12), energising/reading hold button circuit (13); A/D converter (11) connects A/D Acquisition Circuit (10), LCD MODULE (12), energising/reading hold button circuit (13) respectively, and described A/D Acquisition Circuit (10) is connected with ground connection nib (7) with test nib (1).
2. form of a stroke or a combination of strokes numeral ohm according to claim 1 is single, and it is characterized in that: described socket is positioned at the end of housing (8) with table, and quantity is two.
3. form of a stroke or a combination of strokes numeral ohm according to claim 1 is single with table, and it is characterized in that: be provided with storehouse (3), location in the described shell (8), described spring (2), battery (9), resistance test circuit (6) are fixed on the storehouse, location (3).
4. form of a stroke or a combination of strokes numeral ohm according to claim 1 is single with table, and it is characterized in that: A/D converter (11) adopts GC7240B type integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120336757XU CN202256500U (en) | 2011-09-08 | 2011-09-08 | Pen-shaped digital ohm single-purpose gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120336757XU CN202256500U (en) | 2011-09-08 | 2011-09-08 | Pen-shaped digital ohm single-purpose gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256500U true CN202256500U (en) | 2012-05-30 |
Family
ID=46117719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120336757XU Expired - Lifetime CN202256500U (en) | 2011-09-08 | 2011-09-08 | Pen-shaped digital ohm single-purpose gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486902A (en) * | 2015-11-23 | 2016-04-13 | 国网重庆市电力公司电力科学研究院 | Handheld data-maintaining measuring instrument |
| CN112946364A (en) * | 2021-02-03 | 2021-06-11 | 神威超算(北京)科技有限公司 | Resistance test pen and resistance test method |
-
2011
- 2011-09-08 CN CN201120336757XU patent/CN202256500U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486902A (en) * | 2015-11-23 | 2016-04-13 | 国网重庆市电力公司电力科学研究院 | Handheld data-maintaining measuring instrument |
| CN112946364A (en) * | 2021-02-03 | 2021-06-11 | 神威超算(北京)科技有限公司 | Resistance test pen and resistance test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |