CN105785289A - Portable magnetic-field detector - Google Patents
Portable magnetic-field detector Download PDFInfo
- Publication number
- CN105785289A CN105785289A CN201610337933.9A CN201610337933A CN105785289A CN 105785289 A CN105785289 A CN 105785289A CN 201610337933 A CN201610337933 A CN 201610337933A CN 105785289 A CN105785289 A CN 105785289A
- Authority
- CN
- China
- Prior art keywords
- portable magnetic
- converter
- crystal display
- magnetic field
- operational amplifier
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
Abstract
The invention discloses a portable magnetic-field detector. The portable magnetic-field detector comprises a Hall sensor, an integrated operation amplifier, an A/D converter, a single chip microprocessor, a storage unit and a liquid-crystal display, wherein the Hall sensor amplifies collected signals by virtue of the integrated operation amplifier, the amplified signals are converted into digital signals by the A/D converter, are processed and operated by the single chip microprocessor, corresponding magnetic induction intensity is displayed by the liquid-crystal display; data and processing results are stored in the storage unit; and the result can be displayed in real time, and stored data can be called out for viewing at any time.
Description
Technical field
The present invention relates to electromagnetic field measurements technical field, particularly to a kind of portable magnetic field measurement instrument.
Background technology
Electromagnetic field is prevalent in the life of people, is a kind of controlled physical field, has the performance of its uniqueness.In recent years, along with economic fast development, people are more and more higher to the requirement of material life, all universal huge numbers of families of various high-tech electric equipment products such as television set, electric refrigerator, air-conditioning, computer.But, scientific research finds, various electronic products or electronic equipment all can produce a kind of material-electromagnetic wave that human body is potentially dangerous in the use procedure of people, and human body is produced radiation effects by these electromagnetic waves.Frequency electromagnetic waves and the bigger electromagnetic field effect of intensity, after human body, cause energy and muscle power several the decline of people, it is easy to the disease such as cataract, cardiovascular, even result in the decline of human immunity function.
Therefore, the measurement of electromagnetic field is particularly important, the measurement of current electromagnetic field has been widely used for the scientific researches such as industry, electronics, communication and national defence, but high accuracy, portable electromagnetic field measurements instrument are used for scientific research, and it is expensive, therefore exploitation is a kind of cheap, and portable easy-to-use electromagnetic field measurements instrument has stronger using value and important meaning.
Summary of the invention
Present invention aim to address the problems referred to above, it is provided that a kind of portable magnetic field measurement instrument.
The purpose of the present invention is accomplished by:
Portable magnetic field measurement instrument, including Hall element, integrated operational amplifier, A/D converter, single-chip microcomputer, storage element and liquid crystal display；The field signal collected is amplified by described Hall element through integrated operational amplifier, digital signal is converted analog signals into by A/D converter, processed by single-chip microcomputer and computing, the magnetic induction of correspondence is demonstrated by liquid crystal display, and data and result are stored in storage element, can instant playback result, it is possible to the data recalling storage at any time are checked.
Further, the model of described Hall element is AH350.
Further, the model of described integrated operational amplifier is OP07.
The invention has the beneficial effects as follows:
The present invention adopts Hall effect measuring method to design a kind of portable magnetic field measurement instrument, and the hall device of its use is highly sensitive, volume is little, adapt to frequency and temperature range width, and not only can measure stationary magnetic field but also can measure alternating magnetic field, simple, convenient reliable again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
It is further described in detail presently in connection with accompanying drawing.
As it is shown in figure 1, portable magnetic field measurement instrument, including Hall element 1, integrated operational amplifier 2, A/D converter 3, single-chip microcomputer 4, storage element 5 and liquid crystal display 6；The field signal collected is amplified by described Hall element 1 through integrated operational amplifier 2, digital signal is converted analog signals into by A/D converter 3, processed and computing by single-chip microcomputer 4, the magnetic induction of correspondence is demonstrated by liquid crystal display 6, and data and result are stored in storage element 5, can instant playback result, it is possible to the data recalling storage at any time are checked.
The model of described Hall element 1 is AH350.
The model of described integrated operational amplifier 2 is OP07.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any those skilled in the art, equivalent variations done under without departing from the design of the present invention and the premise of principle and amendment, all should belong to the scope of protection of the invention.
Claims (3)
1. portable magnetic field measurement instrument, it is characterised in that include Hall element, integrated operational amplifier, A/D converter, single-chip microcomputer, storage element and liquid crystal display；The field signal collected is amplified by described Hall element through integrated operational amplifier, digital signal is converted analog signals into by A/D converter, processed by single-chip microcomputer and computing, the magnetic induction of correspondence is demonstrated by liquid crystal display, and data and result are stored in storage element, can instant playback result, it is possible to the data recalling storage at any time are checked.
2. portable magnetic field measurement instrument according to claim 1, it is characterised in that the model of described Hall element is AH350.
3. portable magnetic field measurement instrument according to claim 1, it is characterised in that the model of described integrated operational amplifier is OP07.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337933.9A CN105785289A (en) | 2016-05-22 | 2016-05-22 | Portable magnetic-field detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337933.9A CN105785289A (en) | 2016-05-22 | 2016-05-22 | Portable magnetic-field detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105785289A true CN105785289A (en) | 2016-07-20 |
Family
ID=56379193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610337933.9A Pending CN105785289A (en) | 2016-05-22 | 2016-05-22 | Portable magnetic-field detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785289A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901796A (en) * | 2012-12-27 | 2014-07-02 | 重庆文理学院 | Three-dimensional magnetic field-based mechanical disability control system |
| CN104280698A (en) * | 2013-07-09 | 2015-01-14 | 北京嘉岳同乐极电子有限公司 | Magnetic field measurement device |
| CN204302480U (en) * | 2015-01-06 | 2015-04-29 | 东北石油大学 | A kind of monolithic processor controlled teslameter |
| CN204789957U (en) * | 2015-04-16 | 2015-11-18 | 宁波水表股份有限公司 | Developments magnetic field multichannel waveform measurement device |
-
2016
- 2016-05-22 CN CN201610337933.9A patent/CN105785289A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901796A (en) * | 2012-12-27 | 2014-07-02 | 重庆文理学院 | Three-dimensional magnetic field-based mechanical disability control system |
| CN104280698A (en) * | 2013-07-09 | 2015-01-14 | 北京嘉岳同乐极电子有限公司 | Magnetic field measurement device |
| CN204302480U (en) * | 2015-01-06 | 2015-04-29 | 东北石油大学 | A kind of monolithic processor controlled teslameter |
| CN204789957U (en) * | 2015-04-16 | 2015-11-18 | 宁波水表股份有限公司 | Developments magnetic field multichannel waveform measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |