CN207764302U - A kind of high accurancy and precision micro resistance test machine - Google Patents
A kind of high accurancy and precision micro resistance test machine Download PDFInfo
- Publication number
- CN207764302U CN207764302U CN201820063636.4U CN201820063636U CN207764302U CN 207764302 U CN207764302 U CN 207764302U CN 201820063636 U CN201820063636 U CN 201820063636U CN 207764302 U CN207764302 U CN 207764302U
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- CN
- China
- Prior art keywords
- mounting base
- test machine
- test
- precision micro
- right sides
- 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
It is disclosed by the utility model to belong to power test technical field,Specially a kind of high accurancy and precision micro resistance test machine,Including mounting base,It is welded with column at left and right sides of the top of the mounting base,It is mounted on bearing block at the top of column described in two groups,Test machine shell is installed between bearing block described in two groups,The left and right sides has been respectively embedded into display and power switch on the upside of the antetheca of the test machine shell,The left and right sides on the downside of the antetheca of the mounting base has been respectively embedded into regulating switch and test interface,The inner cavity of the mounting base is equipped with test circuit plate,The inner cavity lower right corner of the mounting base is connected with battery pack,The battery pack is electrically connected by conducting wire and test circuit plate,This programme passes through the independent electric current to being measured resistance,Voltage determination,Thus allow for resistance value determination,Reduce the influence of external factor,Improve accuracy of measurement.
Description
Technical field
The utility model is related to power test technical field, specially a kind of high accurancy and precision micro resistance test machine.
Background technology
Micro resistance tester is a kind of instrument for testing micro resistance, is generally used for electric system and electric apparatus manufacture
In, such as：The contact resistance of the connecting terminal of the coil resistance of motor, transformer, electric brake or oil circuit breaker, the contact electricity of cable socket
Resistance etc..
Original tester is not sensitive enough for the test of micro resistance when in use, and measurement result is not accurate enough, for this purpose, I
Propose a kind of high accurancy and precision micro resistance test machine.
Utility model content
The purpose of this utility model is to provide a kind of high accurancy and precision micro resistance test machines, to solve in above-mentioned background technology
The original tester proposed is not sensitive enough for the test of micro resistance when in use, the not accurate enough problem of measurement result.
To achieve the above object, the utility model provides the following technical solutions：A kind of high accurancy and precision micro resistance test machine, packet
Mounting base is included, column is welded at left and right sides of the top of the mounting base, is mounted at the top of column described in two groups
Bearing block, is equipped with test machine shell between bearing block described in two groups, the left and right sides point on the upside of the antetheca of the test machine shell
Be not embedded with display and power switch, the left and right sides on the downside of the antetheca of the mounting base be respectively embedded into regulating switch and
The inner cavity of test interface, the mounting base is equipped with test circuit plate, and the inner cavity lower right corner of the mounting base is connected with electricity
Pond group, the battery pack are electrically connected by conducting wire and test circuit plate, the test circuit plate by conducting wire respectively with display
Device, power switch, regulating switch and test interface are electrically connected.
Preferably, the bottom of the mounting base is bonded with felt pad.
Preferably, the side wall of the right side column is plugged with stop screw, and the left end of stop screw and test machine shell
Right side wall contact.
Preferably, the display is TFT-LCD displays.
Preferably, the regulating switch includes that range adjusts choosing torsion and parameter input knob.
Compared with prior art, the utility model has the beneficial effects that：This programme passes through the independent electricity to being measured resistance
Stream, voltage determination thus allow for resistance value determination, reduce the influence of external factor, improve accuracy of measurement.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the schematic cross-sectional view of the utility model test machine shell；
Fig. 3 is the fundamental diagram of the utility model test circuit plate.
In figure：1 mounting base, 2 columns, 3 bearing blocks, 4 test machine shells, 5 displays, 6 power switches, 7 regulating switch,
8 test interfaces, 9 test circuit plates, 10 battery packs.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of high accurancy and precision micro resistance test machine, including
The top left and right sides of mounting base 1, mounting base 1 is welded with column 2, and the top of two groups of columns 2 is mounted on bearing block
3, test machine shell 4 is installed, the left and right sides has been respectively embedded into aobvious on the upside of the antetheca of test machine shell 4 between two groups of bearing blocks 3
Show that device 5 and power switch 6, the left and right sides on the downside of the antetheca of mounting base 1 have been respectively embedded into regulating switch 7 and test interface 8,
The inner cavity of mounting base 1 is equipped with test circuit plate 9, and the inner cavity lower right corner of mounting base 1 is connected with battery pack 10, battery pack 10
Be electrically connected by conducting wire and test circuit plate 9, test circuit plate 9 by conducting wire respectively with display 5, power switch 6, regulation and control
Switch 7 and test interface 8 are electrically connected.
Wherein, the bottom of mounting base 1 is bonded with felt pad, and the side wall of right side uprights 2 is plugged with stop screw, and limits
The left end of screw is contacted with the right side wall of test machine shell 4, and display 5 is TFT-LCD displays, and regulating switch 7 includes range
Choosing is adjusted to turn round and parameter input knob.
Operation principle：It is selected to the range of the equipment by regulating switch 7, will it connect on four group interfaces of test interface 8
Calibrating terminal is connect, which is opened by power switch 6, the frequency divider in test circuit plate battery pack 9 is to battery pack 10
Electric energy output is regulated and controled, and battery pack 10 exports constant voltage and constant current, the output of constant voltage and constant current respectively
End corresponds to the two groups of calibrating terminals in left side and two groups of right left side calibrating terminal respectively, by the test of constant voltage and constant current
Binding post is correspondingly arranged at the both sides of measured resistance respectively, series electrical flow table in constant voltage, shunt voltage on constant current
Table carries out the measurement for being measured the electric current and voltage of resistance, because of the voltage in constant-voltage circuit and constant current electrical respectively
Electric current in road is constant, by the voltage and current sampling to measurement and converts electric appliance by the mould electricity on test circuit plate 9
Electric signal is converted to, according to R=U/I calculate separately the measured resistance value of measurement, takes being averaged for two groups of survey calculation results
Value is used as show value, and show value is exported to display 5 and is shown.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of high accurancy and precision micro resistance test machine, including mounting base (1), it is characterised in that：The top of the mounting base (1)
It is welded with column (2) at left and right sides of portion, bearing block (3), bearing described in two groups are mounted at the top of column (2) described in two groups
Test machine shell (4) is installed between seat (3), has been respectively embedded at left and right sides of the antetheca upside of the test machine shell (4) aobvious
Show that device (5) and power switch (6), the left and right sides on the downside of the antetheca of the mounting base (1) have been respectively embedded into regulating switch (7)
Test circuit plate (9), the inner cavity of the mounting base (1) are installed with the inner cavity of test interface (8), the mounting base (1)
The lower right corner is connected with battery pack (10), and the battery pack (10) is electrically connected by conducting wire and test circuit plate (9), the test
Circuit board (9) is electrically connected with display (5), power switch (6), regulating switch (7) and test interface (8) respectively by conducting wire
It connects.
2. a kind of high accurancy and precision micro resistance test machine according to claim 1, it is characterised in that：The mounting base (1)
Bottom be bonded with felt pad.
3. a kind of high accurancy and precision micro resistance test machine according to claim 1, it is characterised in that：The right side column (2)
Side wall be plugged with stop screw, and the left end of stop screw is contacted with the right side wall of test machine shell (4).
4. a kind of high accurancy and precision micro resistance test machine according to claim 1, it is characterised in that：The display (5) is
TFT-LCD displays.
5. a kind of high accurancy and precision micro resistance test machine according to claim 1, it is characterised in that：The regulating switch (7)
Choosing is adjusted including range to turn round and parameter input knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063636.4U CN207764302U (en) | 2018-01-16 | 2018-01-16 | A kind of high accurancy and precision micro resistance test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063636.4U CN207764302U (en) | 2018-01-16 | 2018-01-16 | A kind of high accurancy and precision micro resistance test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207764302U true CN207764302U (en) | 2018-08-24 |
Family
ID=63183905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820063636.4U Expired - Fee Related CN207764302U (en) | 2018-01-16 | 2018-01-16 | A kind of high accurancy and precision micro resistance test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207764302U (en) |
-
2018
- 2018-01-16 CN CN201820063636.4U patent/CN207764302U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20190116 |