CN206892304U - A kind of spatial magnetic field measuring system - Google Patents
A kind of spatial magnetic field measuring system Download PDFInfo
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- CN206892304U CN206892304U CN201720793654.3U CN201720793654U CN206892304U CN 206892304 U CN206892304 U CN 206892304U CN 201720793654 U CN201720793654 U CN 201720793654U CN 206892304 U CN206892304 U CN 206892304U
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- measurement
- magnetic field
- electromagnetic field
- ring
- field generator
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Abstract
The utility model discloses a kind of spatial magnetic field measuring system, its feature includes：Electromagnetic field generator, measurement ring and single-point Hall sensor circuit, electromagnetic field generator be hollow cylinder-like structure, and measurement ring is set in the side wall of electromagnetic field generator, and it in electromagnetic field generator is removable frame to measure ring by neck；One measurement bar for carrying scale is set in the diametric(al) of measurement ring；Measurement bar can be in measurement ring using the center of circle as pivot point by annular groove；Several single-point Hall sensor circuits are provided with measurement bar, for obtaining spatial magnetic field.The accurate measurement space Distribution of Magnetic Field of the utility model energy, so as to improve spatial magnetic field data, laid the foundation for further research.
Description
Technical field
Electromagnetic arts are the utility model is related to, specifically a kind of spatial magnetic field measuring system.
Background technology
The development of magnetic-field measurement has long history, and before more than 2,000 years, people just detect magnetic field with compass in ancient China, uses
In direction indication.With the progress of modern science and technology, the application of magnetic field sensor is more and more extensive, and magnetic field sensing technology is towards Gao Ling
Sensitivity, high-resolution, miniaturization and the direction compatible with electronic equipment are developed., detection be present in traditional magnetic field intensity measurement
Signal is weaker, the shortcomings that to external interference sensitivity, carries out spot measurement to certain point magnetic field intensity, efficiency is low and flexibility very
Difference.
Foreign countries are in terms of alternative current field measurement in recent years, under in irregular shape and particular case, such as silicon steel sheet
The alternating magnetic field detection of detection, the progress circle of high temperature superconductive wire alternative current field measurement, extra-high voltage transmission line etc. has been made a large amount of
Research work.It is and few in space magnetic field measuring study.
New material application is innovatively improved sensitivity, some designs by domestic aspect, some in magnetic field sensor
The sensor for intermediate-frequency high-magnetic field is gone out, some has been done numerous studies in terms of magnetic field sensor and point magnetic-field measurement and obtained
Certain achievement.But the problem of still suffering from the measuring study deficiency to spatial magnetic field.
Utility model content
The utility model is to solve above-mentioned the shortcomings of the prior art part, propose that a kind of spatial magnetic field is surveyed
Amount system, to the accurate measurement space Distribution of Magnetic Field of energy, so as to improve spatial magnetic field data, established for further research
Fixed basis.
The utility model adopts the following technical scheme that to solve technical problem：
A kind of design feature of spatial magnetic field measuring system of the utility model includes：Electromagnetic field generator, measurement
Ring and single-point Hall sensor circuit；
The electromagnetic field generator is hollow cylinder-like structure, is set in the side wall of the electromagnetic field generator
There is neck, and the measurement ring is fixed by the neck, and the barrel of the measurement ring and the electromagnetic field generator is mutual
Perpendicular, the measurement ring in the electromagnetic field generator is removable frame by the neck；
An annular groove for carrying angle scale is set on the measurement ring；By the annular groove in the diameter for measuring ring
Side sets up a measurement bar for carrying scale；The measurement bar can be in the measurement ring using the center of circle as rotation by the annular groove
Turning point rotates；Several described single-point Hall sensor circuits are provided with the measurement bar, for obtaining space magnetic field point
Cloth.
The characteristics of spatial magnetic field measuring system described in the utility model, lies also in；The single-point Hall sensor electricity
The composition on road includes：Hall sensor, n comparator, tri-state RS latch and n light emitting diode；
The Hall sensor includes：Power end, earth terminal and output end, the power supply terminate 5VDC, the output end
It is respectively connected to the positive input terminal of n comparator；The negative input end of the n comparator is respectively connected to different size and respectively less than 5V
Magnitude of voltage；The output end of the n comparator is connected with corresponding light emitting diode respectively by tri-state RS latch, so as to
The light emitting diode is enabled to react different magnetic field sizes.
Compared with the prior art, the beneficial effects of the utility model are embodied in：
1st, the utility model is by setting electromagnetic field generator, measurement ring and single-point Hall sensor circuit in cylinder
Caused space magnetic field intensity measures, and the magnetic field intensity of multiple spot in space can be measured simultaneously, greatly improved
Measurement efficiency and flexibility.
2nd, the utility model is according to the operation principle of Hall effect, make use of the fundamental characteristics of Hall magnetic field sensor it is good,
The characteristics of operation logic and simple in construction, compatible microelectronic circuit, single-point Hall sensor circuit is devised, there is volume very
It is small, facilitate the advantages of accurate, so that there can be multiple single-point Hall sensor circuits simultaneously in measurement ring, due to signal
Time is very short, and using comparator and latch, the signal latch measured and real-time display are come out, tested so as to reflect in time
Measure the size and spatial distribution in magnetic field.
Brief description of the drawings
Fig. 1 is the utility model electromagnetic field generator；
Fig. 2 is that the utility model measures annulus platform details figure；
Fig. 3 is the utility model single-point measurement apparatus installation diagram；
Fig. 4 is the utility model single-point Hall sensor circuit diagram；
Label in figure：1 electromagnetic field generator；2 measurement rings；3 single-point Hall sensor circuits；4 measurement bars；5 centers of circle are consolidated
Determine screw；6 linking neck screws.
Embodiment
In the present embodiment, as shown in figure 1, a kind of spatial magnetic field measuring system, including：Electromagnetic field generator 1, survey
Measure ring 2 and single-point Hall sensor circuit 3；
Electromagnetic field generator 1 is hollow cylinder-like structure, and certain point Injection Current, electric current lead on cylindrical wall top
Discharge device discharge of the barrel to outside lower end is crossed, the device can measure surrounding space magnetic field when electric current flows through barrel.In electricity
Neck is provided with the side wall of field generator for magnetic 1, and passes through neck fixation measuring ring 2.Measure ring 2 and electromagnetic field generator
1 barrel is orthogonal, and it is removable frame that measurement ring 2 is interior in electromagnetic field generator 1 by neck；
Measurement ring 2 is illustrated in figure 2, an annular groove for carrying angle scale is set on measurement ring 2；Measured by annular groove
One measurement bar 4 for carrying scale is set in the diametric(al) of ring 2；I.e. measurement bar 4 is fixed on measurement by being connected neck screw 6
On ring 2；Measurement bar 4 is fixed on measurement ring 4 center by center of circle fixing screws 5, so as to measured by annular groove in ring 2 with the center of circle
For pivot point.As shown in figure 3, being provided with several single-point Hall sensor circuits 3 in measurement bar 4, uniformly place, one
As spacing between single-point Hall sensor circuit 3 be 5cm, spacing as needed can adjust.
As shown in figure 3, if the electric current of injection flows through measurement bar " 0 " end on the inside of barrel, by some of uniform intervals 5cm
Individual single-point Hall sensor circuit 3 obtains spatial magnetic field.
As shown in figure 4, the composition of single-point Hall sensor circuit 3 includes：Hall sensor, n comparator, tri-state RS locks
Storage and n light emitting diode；
Magnetic signal is converted to electric signal (Hall voltage) by Hall sensor, so as to directly act on electronic circuit.Hall
Voltage changes with the change of magnetic field intensity, and magnetic field is stronger, and voltage is higher, and magnetic field is weaker, and voltage is lower.Voltage comparator can be with
Using twin voltage comparator LM393 or highly integrated voltage comparator chip LM339, determined by n roads light emitting diode, all the way
The corresponding light emitting diode all the way of voltage comparator.LM393 has two inputs and two output ends, and a reference voltage terminal is defeated
It is high level to enter output end when terminal voltage is less than reference voltage, otherwise the upset of output end level.Output load resistance can be engaged on
It can allow on any supply voltage in the range of supply voltage, not limited by power supply terminal voltage value.LM339 voltage comparator cores
Four independent voltage comparators are housed inside piece, are very common integrated circuits.Can easily it be formed using LM339 various
Voltage comparator circuit and pierce circuit.LM339 is similar to the nonadjustable operational amplifier of gain.Each comparator has two
Input and an output end.LM393 and LM339 is more satisfactory for detection weak signal.CD4043 is a kind of tri-state RS locks
Trigger is deposited, when the logic level of Enable Pin is high level, output end exports the state of Internal latches, when patrolling for Enable Pin
When volume level be low level, output end presentation high-impedance state.When Enable Pin is high level, output end connection LED light, lead to
Cross LED light to come out the status display inside latch, or signal wire is directly led out, so as to obtain magnetic signal
Value.For the integration of realization device, single-point measurement apparatus mainly uses battery powered, improves device integrated level, Portable practical.
Hall sensor includes：Power end, earth terminal and output end, power supply termination 5VDC, output end are respectively connected to n ratio
Compared with the positive input terminal of device；The negative input end of n comparator is respectively connected to different size and respectively less than 5V magnitude of voltage；N relatively
The output end of device is connected with corresponding light emitting diode respectively by tri-state RS latch, so that light emitting diode can react
Different magnetic field sizes.The horizontal level of adjustment measurement ring 2, is determined according to Injection Current position to the angle of measurement bar 4；
During measurement, Injection Current produces magnetic field, and n single-point measurement apparatus 3 measures.So as to obtain space magnetic field intensity.
Claims (2)
1. a kind of spatial magnetic field measuring system, its feature include：Electromagnetic field generator (1), measurement ring (2) and single-point are suddenly
That sensor circuit (3)；
The electromagnetic field generator (1) is hollow cylinder-like structure, is set in the side wall of the electromagnetic field generator (1)
Neck is equipped with, and the measurement ring (2), and the measurement ring (2) and the electromagnetic field generator are fixed by the neck
(1) barrel is orthogonal, and it is removable that the measurement ring (2) is interior in the electromagnetic field generator (1) by the neck
Structure；
One annular groove for carrying angle scale is set on the measurement ring (2)；By the annular groove in the straight of the measurement ring (2)
Footpath side sets up a measurement bar (4) for carrying scale；The measurement bar (4) can be in the measurement ring (2) by the annular groove
It is interior using the center of circle as pivot point；Several single-point Hall sensor circuits (3) are provided with the measurement bar (4),
For obtaining spatial magnetic field.
2. spatial magnetic field measuring system according to claim 1, it is characterized in that；The single-point Hall sensor circuit
(3) composition includes：Hall sensor, n comparator, tri-state RS latch and n light emitting diode；
The Hall sensor includes：Power end, earth terminal and output end, the power supply terminate 5VDC, the output end difference
Access the positive input terminal of n comparator；The negative input end of the n comparator is respectively connected to different size and respectively less than 5V electricity
Pressure value；The output end of the n comparator is connected with corresponding light emitting diode respectively by tri-state RS latch, so that
The light emitting diode can react different magnetic field sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793654.3U CN206892304U (en) | 2017-07-03 | 2017-07-03 | A kind of spatial magnetic field measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793654.3U CN206892304U (en) | 2017-07-03 | 2017-07-03 | A kind of spatial magnetic field measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892304U true CN206892304U (en) | 2018-01-16 |
Family
ID=61297558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720793654.3U Expired - Fee Related CN206892304U (en) | 2017-07-03 | 2017-07-03 | A kind of spatial magnetic field measuring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206892304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188319A (en) * | 2018-10-18 | 2019-01-11 | 国网山东省电力公司潍坊供电公司 | A kind of hand-held alternating current-direct current detection of magnetic field instrument |
| CN112067847A (en) * | 2020-09-08 | 2020-12-11 | 西安航天精密机电研究所 | Device and method for measuring and evaluating air gap magnetic performance of torquer of accelerometer |
-
2017
- 2017-07-03 CN CN201720793654.3U patent/CN206892304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188319A (en) * | 2018-10-18 | 2019-01-11 | 国网山东省电力公司潍坊供电公司 | A kind of hand-held alternating current-direct current detection of magnetic field instrument |
| CN112067847A (en) * | 2020-09-08 | 2020-12-11 | 西安航天精密机电研究所 | Device and method for measuring and evaluating air gap magnetic performance of torquer of accelerometer |
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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: 20180116 Termination date: 20200703 |