CN2812019Y - Shunt type resistance measurer - Google Patents
Shunt type resistance measurer Download PDFInfo
- Publication number
- CN2812019Y CN2812019Y CN 200520006204 CN200520006204U CN2812019Y CN 2812019 Y CN2812019 Y CN 2812019Y CN 200520006204 CN200520006204 CN 200520006204 CN 200520006204 U CN200520006204 U CN 200520006204U CN 2812019 Y CN2812019 Y CN 2812019Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- reometer
- power supply
- ammeter
- 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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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a shunt type resistance measuring device which belongs to a measuring device and aims at providing the resistance measuring device of accurate measuring results. The utility model has the technical scheme that the utility model is composed of a power supply, ammeters and measuring terminals. A rheostat (1) is connected to both poles of the power supply (7) through an ammeter (3), and a pair of measuring terminals (2) are connected in parallel to two ends of the rheostat (1) and the ammeter (3) through the other ammeter (4). The utility model has the advantages of simple structure, convenient use and low cost, can be used as experimental equipment of a school lab and can also be used as detection equipment of a maintainer who maintains electric appliances.
Description
Technical field: the utility model relates to a kind of electric resistance measuring apparatus, relates in particular to a kind of shunting electric resistance measuring apparatus.
Background technology: at present, the common method of measuring resistance mainly contains two kinds: voltammetry and ohmmeter mensuration.The former is owing to be subjected to the influence of voltage meter or amp gauge internal resistance, and measuring accuracy is not high; The latter is owing to will be subjected to the influence of the internal resistance of cell, and measurement result is also not accurate enough.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of simple in structure, easy to use, and measurement result is the shunting electric resistance measuring apparatus more accurately.
The technical solution of the utility model is made of power supply, reometer and measurement terminal, and variable rheostat is connected the two poles of the earth of power supply by reometer, and a pair of measurement terminal is connected in parallel on the two ends of variable rheostat and reometer by the another reometer.
Between power supply and reometer, be in series with resistance and switch.
Compared with the prior art, the utility model has been owing to adopted divided circuit, and the size of regulating branch current by variable rheostat, and therefore simple in structure, easy to use, measuring accuracy is higher, cost is lower.
Description of drawings:
Accompanying drawing is circuit theory diagrams of the present utility model.
Among the figure: variable rheostat 1 measurement terminal 2 reometers 3,4 resistance 5 switches 6 power supplys 7
Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
As shown in the figure, variable rheostat 1 forms the loop by the two poles of the earth that reometer 3 is connected power supply 7, and a pair of measurement terminal 2 is connected in parallel on the two ends of variable rheostat 1 and reometer 3 by another reometer 4.For the ease of control with prevent that the electric current in the circuit is excessive, but between power supply 7 and above-mentioned two reometers 3,4 also resistance in series 5 and switch 6.Measurement terminal 2 can design according to the concrete structure of measured resistance.If measured resistance is a linear resistance, measurement terminal 2 can be made into the form of binding clip; If measured resistance is the article of bulb one class, 2 forms that can be made into lamp socket one class of measurement terminal its objective is and guarantee that contact well, reliably.
During use, measured resistance is connected on the measurement terminal 2, energized 7, regulates variable rheostat 1, observes reometer 3, when the reading of reometer 3 equated with the reading of reometer 4, the displayed value of variable rheostat 1 was the resistance of measured resistance.
Claims (2)
1. shunting electric resistance measuring apparatus, constitute by power supply, reometer and measurement terminal, it is characterized in that: variable rheostat (1) is connected the two poles of the earth of power supply (7) by reometer (3), and a pair of measurement terminal (2) is connected in parallel on the two ends of variable rheostat (1) and reometer (3) by another reometer (4).
2. shunting electric resistance measuring apparatus according to claim 1 is characterized in that: be in series with resistance (5) and switch (6) between power supply (7) and reometer (3), (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006204 CN2812019Y (en) | 2005-07-08 | 2005-07-08 | Shunt type resistance measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006204 CN2812019Y (en) | 2005-07-08 | 2005-07-08 | Shunt type resistance measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812019Y true CN2812019Y (en) | 2006-08-30 |
Family
ID=36938410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520006204 Expired - Fee Related CN2812019Y (en) | 2005-07-08 | 2005-07-08 | Shunt type resistance measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812019Y (en) |
-
2005
- 2005-07-08 CN CN 200520006204 patent/CN2812019Y/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 |