CN112269078A - General detector of electrical measurement - Google Patents
General detector of electrical measurement Download PDFInfo
- Publication number
- CN112269078A CN112269078A CN202011088016.4A CN202011088016A CN112269078A CN 112269078 A CN112269078 A CN 112269078A CN 202011088016 A CN202011088016 A CN 202011088016A CN 112269078 A CN112269078 A CN 112269078A
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- inspection tester
- inspection
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- 238000005259 measurement Methods 0.000 title claims abstract description 23
- 238000007689 inspection Methods 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses a general inspection tester for electrical measurement, which comprises an inspection tester, wherein a liquid crystal display is arranged on the upper half part of the front surface of the inspection tester, a measurement selection switch, a power under-voltage indicator lamp, an overload indicator lamp, an output adjusting knob, a switch, a key group, a data calling key and a reset key are sequentially arranged below the liquid crystal display, two sides of the middle part of the inspection tester are connected with a handheld frame, the left side of the inspection tester is sequentially provided with a Ux port and an Ix port, the right side of the inspection tester is sequentially provided with a charging socket and a sensor socket, and the inspection tester is composed of an integrated circuit, a double integral A/D conversion chip and a peripheral circuit.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a general inspection tester for electrical measurement.
Background
The electrical measurement is an important category of electricity, and is an essential means in human life and development process, and can acquire a series of data information for objective objects, so as to intuitively acquire cognition and understanding of the concept of the objects.
Disclosure of Invention
The invention aims to solve the problems and provide a general inspection instrument for electrical measurement.
In order to achieve the purpose, the invention provides the following technical scheme: the portable inspection tester comprises an inspection tester body, wherein a liquid crystal display is arranged on the upper half part of the front side of the inspection tester body, a measurement selection switch, an under-voltage power indicator lamp, an overload indicator lamp, an output adjusting knob, a switch, a key group, a data calling key and a reset key are sequentially arranged below the liquid crystal display, two sides of the middle of the inspection tester body are connected with a handheld frame, a Ux port and an Ix port are sequentially arranged on the left side of the inspection tester body, a charging socket and a sensor socket are sequentially arranged on the right side of the inspection tester body, and the inspection tester body is composed of an integrated circuit, a double integral A/D conversion chip and.
Preferably, the inspection instrument is composed of an integrated circuit, a dual-integral a/D conversion chip and a peripheral circuit, and the dual-integral a/D conversion chip adopts ICL 7135.
Preferably, the range of the inspection instrument and the output range are respectively as follows: 20mV-2000mV, 0-200 mV.
Preferably, a resistor is arranged in the inspection instrument, and the adjusting range of the resistor is 0.01-11111.11 omega.
Compared with the prior art, the invention has the beneficial effects that: the invention has wide application, can accurately output and measure direct current voltage and current, can calibrate various temperature instruments and electric unit combination instruments, and has portable structure and simple operation.
Drawings
FIG. 1 is a schematic view of a general inspection apparatus for electrical measurement according to the present invention.
FIG. 2 is a left side view of the structure of the universal inspection instrument for electrical measurement according to the present invention
FIG. 3 is a right side view of the structure of the universal inspection apparatus for electrical measurement according to the present invention.
In the figure: 1-inspection tester, 2-liquid crystal display, 3-measurement selection switch, 4-output adjusting knob, 5-undervoltage power indicator, 6-overload indicator, 7-key group, 8-switch, 9-data calling key, 10-reset key, 11-Ux port, 12-Ix port, 13-charging socket, 14-sensor socket and 15-portable rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: including inspection tester 1, 1 positive first parts of inspection tester are provided with LCD 2, LCD 2 below has set gradually and has measured selector switch 3, power under-voltage pilot lamp 5, overload pilot lamp 6, output adjust knob 4, switch 8, presses key group 7, data call button 9 and reset button 10, 1 middle part both sides of inspection tester are connected with portable frame 15, 1 left side of inspection tester has set gradually Ux port 11, Ix port 12, 1 right side of inspection tester has set gradually charging socket 13, sensor socket 14.
The inspection tester 1 is composed of an integrated circuit, a double integral type A/D conversion chip and a peripheral circuit, wherein the double integral type A/D conversion chip adopts ICL7135, and the double integral type A/D conversion chip is high in conversion precision and strong in anti-interference capability.
The range and the output range of the inspection tester 1 are respectively as follows: 20mV-2000mV, 0-200 mV.
The tester 1 is internally provided with a resistor, the adjusting range of the resistor is 0.01-11111.11 omega, when the output voltage is continuously and smoothly adjusted to 50mV or 100mV or 200mV from zero volt, the output voltage of the integrated circuit is possibly not zero volt when the input voltage of the integrated circuit is zero due to various reasons, so that a small negative voltage is needed, and an inverter with the amplification factor of-0.1/10K is set relatively.
The measurement selection switch 3 is correspondingly provided with Ux and Ix, when the voltage and the current outside the machine need to be measured, the measurement selection switch is only required to be arranged at the proper position of Ux or Ix, and then the size of the measurement selection switch is adjusted through the output range corresponding to the output adjusting knob 4.
The battery in inspection tester 1 adopts the power frequency 220V power, and when mains voltage was greater than 6.4V, voltage was less than the inverting terminal voltage, and the output is the high level, and power under-voltage indicator 5 does not light, and in case battery voltage was less than 6.4V, voltage was higher than inverting terminal voltage, and output low level, power under-voltage indicator 5 glimmers, reminds the user that the battery needs to charge.
When the tester 1 measures voltage and current, the measured voltage mismatch cannot be displayed, at the moment, the overload indicator lamp 6 flickers to indicate overload, the measurement selection switch 3 is switched to a higher gear, or the output adjusting knob 4 is adjusted to reduce the output.
The data calling key 9 is used for calling old data, the key group 7 is composed of an upper key, a lower key, a left key, a right key and a determination key, and the old data can be called and checked through adjustment of the key group 7.
The charging socket 13 corresponds to a battery in the inspection instrument 1.
The sensor socket 14 is used for a temperature sensor cable plug to be inserted, and is used for detecting the ambient temperature.
The portable frame 15 is convenient to carry integrally, has the portable characteristic and is good in portability.
The working principle of the invention is as follows: when the temperature measuring device is used, if temperature needs to be measured, a temperature sensor cable can be inserted through the sensor interface 14, the temperature of the environment where the sensor is located can be displayed, if voltage and current need to be measured, the terminal to be measured is connected to the Ux port 11 or the Ix port 12, then the measurement selection switch 3 corresponds to the Ux or the Ix, the output adjusting knob 4 is placed in the gear to be selected when voltage output is needed, and then the measured value is accurately displayed through measurement and display.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A general inspection tester for electrical measurement comprises an inspection tester (1) and is characterized in that: the inspection tester is characterized in that a liquid crystal display (2) is arranged on the upper half of the front face of the inspection tester (1), a measurement selection switch (3), an under-voltage power indicator (5), an overload indicator (6), an output adjusting knob (4), a switch (8), a key set (7), a data calling key (9) and a reset key (10) are sequentially arranged below the liquid crystal display (2), hand-held frames (15) are connected to two sides of the middle of the inspection tester (1), a Ux port (11) and an Ix port (12) are sequentially arranged on the left side of the inspection tester (1), and a charging socket (13) and a sensor socket (14) are sequentially arranged on the right side of the inspection tester (1).
2. The universal inspection tester for electrical measurements of claim 1, wherein: the inspection tester (1) is composed of an integrated circuit, a double-integral A/D conversion chip and a peripheral circuit, wherein the double-integral A/D conversion chip adopts ICL 7135.
3. The universal inspection tester for electrical measurements of claim 1, wherein: the range and the output range of the inspection tester (1) are respectively as follows: 20mV-2000mV, 0-200 mV.
4. The universal inspection tester for electrical measurements of claim 1, wherein: the inspection tester (1) is internally provided with a resistor, and the adjusting range of the resistor is 0.01-11111.11 omega.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088016.4A CN112269078A (en) | 2020-10-13 | 2020-10-13 | General detector of electrical measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088016.4A CN112269078A (en) | 2020-10-13 | 2020-10-13 | General detector of electrical measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112269078A true CN112269078A (en) | 2021-01-26 |
Family
ID=74337882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011088016.4A Pending CN112269078A (en) | 2020-10-13 | 2020-10-13 | General detector of electrical measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112269078A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514738A2 (en) * | 1991-05-24 | 1992-11-25 | Reichle + De-Massari AG Elektro-Ingenieure | Multifunctinal testing- and measuring device for electrical power installations |
| CN101067563A (en) * | 2007-07-02 | 2007-11-07 | 北京农业信息技术研究中心 | Hand-held temperature and humidity dew-point measuring method and device |
| CN201845059U (en) * | 2010-11-12 | 2011-05-25 | 尹春洋 | Process checking multimeter |
| CN203688108U (en) * | 2014-01-28 | 2014-07-02 | 国家电网公司 | Transformer temperature measurement system calibration meter |
| CN205643545U (en) * | 2016-04-02 | 2016-10-12 | 广州市荣鑫电子科技有限公司 | A intelligent electricity inspection appearance that be used for electric power field based on USB |
| CN205958006U (en) * | 2016-08-29 | 2017-02-15 | 李晓蕾 | Portable multi -functional tester |
| CN108241083A (en) * | 2018-03-18 | 2018-07-03 | 无锡市翱宇特新科技发展有限公司 | A kind of multimeter |
| CN109498855A (en) * | 2018-12-27 | 2019-03-22 | 中国人民解放军第二军医大学 | A kind of drainage bag liquid level monitoring and alarming device |
-
2020
- 2020-10-13 CN CN202011088016.4A patent/CN112269078A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514738A2 (en) * | 1991-05-24 | 1992-11-25 | Reichle + De-Massari AG Elektro-Ingenieure | Multifunctinal testing- and measuring device for electrical power installations |
| CN101067563A (en) * | 2007-07-02 | 2007-11-07 | 北京农业信息技术研究中心 | Hand-held temperature and humidity dew-point measuring method and device |
| CN201845059U (en) * | 2010-11-12 | 2011-05-25 | 尹春洋 | Process checking multimeter |
| CN203688108U (en) * | 2014-01-28 | 2014-07-02 | 国家电网公司 | Transformer temperature measurement system calibration meter |
| CN205643545U (en) * | 2016-04-02 | 2016-10-12 | 广州市荣鑫电子科技有限公司 | A intelligent electricity inspection appearance that be used for electric power field based on USB |
| CN205958006U (en) * | 2016-08-29 | 2017-02-15 | 李晓蕾 | Portable multi -functional tester |
| CN108241083A (en) * | 2018-03-18 | 2018-07-03 | 无锡市翱宇特新科技发展有限公司 | A kind of multimeter |
| CN109498855A (en) * | 2018-12-27 | 2019-03-22 | 中国人民解放军第二军医大学 | A kind of drainage bag liquid level monitoring and alarming device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210126 |
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| RJ01 | Rejection of invention patent application after publication |