CN203037836U - Magnetic field strength measurement device - Google Patents
Magnetic field strength measurement device Download PDFInfo
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- CN203037836U CN203037836U CN 201320005212 CN201320005212U CN203037836U CN 203037836 U CN203037836 U CN 203037836U CN 201320005212 CN201320005212 CN 201320005212 CN 201320005212 U CN201320005212 U CN 201320005212U CN 203037836 U CN203037836 U CN 203037836U
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- 238000005259 measurement Methods 0.000 title claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 14
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005355 Hall effect Effects 0.000 abstract description 8
- 230000014509 gene expression Effects 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002653 magnetic therapy Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Abstract
The utility model discloses a magnetic field strength measurement device. The device comprises signal source equipment, a Hall sensor, a solenoid, a three-dimensional feeding device and water-cooled equipment. The magnetic field strength measurement device is based on the Hall effect, can continuously and linearly measure the magnetic field strength, and realizes more intelligent, more accurate and more practical magnetic field strength measurement.
Description
Technical field
The utility model relates to the electromagnetics field, relates in particular to a kind of magnetic field intensity measurement mechanism.
Background technology
The development of magnetic-field measurement has long history, and before more than 2,000 years, people just survey magnetic field with compass in ancient China, are used to indicate direction.Along with the continuous development of physics, material science and electronic technology, the magnetic-field measurement technology has obtained remarkable progress, and the magnetic-field measurement method is also more and more.Current, oneself is widely used in fields such as geophysics, space science, biomedicine, military technology, industrial flaw detection the magnetic-field measurement technology, becomes indispensable means.Magnetic-field measurement often with the size of magnetic field intensity as module, at the difference of magnetic field intensity under the different occasions, need to adopt different measuring methods.
Hall effect refers to can produce the phenomenon of electromotive force perpendicular to the direction of electric current and external magnetic field when external magnetic field during perpendicular to the electric current that flows through in metal or the semiconductor in metal or semiconductor.The Hall effect method is to use more a kind of magnetic-field measurement method in actual applications, utilize the Hall effect method can be continuously reading linearly, and can be used for measuring little gap magnetic field, can also use many probes to realize that automatic measurements and data handle.
The Hall effect magnetic field measuring apparatus is a kind of instrumentation of test magnetic field intensity, has been widely used in the loudspeaker of the door seal magnetic stripe of measuring rotor, magnetic material, toy, refrigerator, sound equipment, as the magnetic field intensity of clutch coupling and the various magnetic therapy products of switch.But it is along with development and the continuous progress in science and technology of society, more and more higher to the requirement of aspects such as the function of this instrument, intellectuality, practicality.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of magnetic field intensity measurement mechanism based on Hall effect, thus more intelligent, more accurate, more continuous linear measurement magnetic field intensity.
According to an aspect of the present utility model, a kind of magnetic field intensity measurement mechanism is provided, described device comprises: signal source equipment, Hall element, solenoid, three-dimensional feed apparatus and water cooling equipment.
Preferably, described signal source equipment is used to described solenoid that exciting current is provided, and for described Hall element provides operating voltage, and measures the Hall voltage that described Hall element is exported;
Described three-dimensional feed apparatus is used for making described Hall element mobile at three dimensions, and measures the position of described Hall element in three dimensions; And
Described water cooling equipment is used for utilizing circulating water flow to cool off described solenoid, to eliminate the heat that described solenoid is sent.
Preferably, described signal source equipment further comprises: numerical control adjustable current source, first D.C. regulated power supply, second D.C. regulated power supply and digital voltmeter, wherein
Described numerical control adjustable current source is used to described solenoid that exciting current is provided;
Described first D.C. regulated power supply and described second D.C. regulated power supply are used to described Hall element that operating voltage is provided; And
Described digital voltmeter is used for measuring the Hall voltage that described Hall element is exported.
Preferably, the range of adjustment of described numerical control adjustable current source is 0-0.5A, the range of adjustment of described first D.C. regulated power supply is 2.4V-2.6V, the range of adjustment of described second D.C. regulated power supply is 4.8V-5.2V, described digital voltmeter has two kinds of ranges, is respectively 19.999V range and 1999.9mV range.
Preferably, described signal source equipment further comprises a reversing switch K2, and described numerical control adjustable current source provides exciting current for described solenoid by described reversing switch K2,
Wherein, when described reversing switch K2 is in first conduction position and second conduction position, the exciting current direction that described numerical control adjustable current source provides for described solenoid is opposite, when described reversing switch K2 is in open position, disconnects and gives described solenoidal exciting current supply.
Preferably, described signal source equipment further comprises a K switch 1,
Wherein, when described K switch 1 is in primary importance, two lead-in wire V+ of described Hall element are connected with the positive and negative two ends of described second D.C. regulated power supply respectively with V-, in order to operating voltage is provided for described Hall element, and two lead-in wire Vout of described Hall element are connected the positive and negative terminal of described digital voltmeter with V-, in order to export Hall voltage.
Preferably, when described magnetic field intensity measurement mechanism is regulated, make described reversing switch K2 be in open position earlier, so that described Hall sensor is under zero magnetic field condition, make described K switch 1 be in primary importance, regulate the output voltage of described second D.C. regulated power supply, make that the shown magnitude of voltage of described digital voltmeter is 2.500V, at this moment described Hall sensor reaches the standardization effort state;
Then, still make described reversing switch K2 be in open position, make described K switch 1 be in the second place, regulate the output voltage of described first D.C. regulated power supply, making the shown magnitude of voltage of described digital voltmeter is 0, and namely the 2.500V potential difference (PD) of exporting with potential difference (PD) and the described Hall element of an external 2.500V compensates.
Preferably, described three-dimensional feed apparatus further comprises the guide rail of feeler lever, three-dimensional, the position scale of three-dimensional, trip bolt and the slide block of three-dimensional, wherein said feeler lever directly is connected with described Hall element, is used for driving described Hall element and moves along three-dimensional in solenoid.
Preferably, described water cooling equipment comprises: water inlet end, annulus and water side, wherein said solenoid are on described annulus, and tap water flows into described annulus by described water inlet end and flows out from described water side, circulates with formation.
According to technique scheme, the utility model provides a kind of magnetic field intensity measurement mechanism based on Hall effect, thereby can measure magnetic field intensity continuously linearly, has realized more intelligent, more accurate, more practical magnetic field intensity measurement.
Description of drawings
Fig. 1 is the synoptic diagram in kind of the signal source equipment of magnetic field intensity measurement mechanism in the utility model embodiment;
Fig. 2 is the circuit connection diagram of magnetic field intensity measurement mechanism in the utility model embodiment;
Fig. 3 is the structural drawing of the three-dimensional feed apparatus of magnetic field intensity measurement mechanism in the utility model embodiment;
Fig. 4 is the structural drawing of the water cooling equipment of magnetic field intensity measurement mechanism in the utility model embodiment.
Embodiment
Magnetic field intensity measurement mechanism in the utility model embodiment comprises: signal source equipment, Hall element, solenoid, three-dimensional feed apparatus and water cooling equipment.Wherein, signal source equipment is used to solenoid that exciting current is provided, and for Hall element provides operating voltage, and measures the Hall voltage that Hall element is exported; Three-dimensional feed apparatus is used for making Hall element mobile at three dimensions, and measures the position of Hall element in three dimensions; Water cooling equipment is used for utilizing circulating water flow to cool off solenoid, to eliminate the heat that solenoid was sent.
Below just introduce each module device of magnetic field intensity measurement mechanism in the embodiment by reference to the accompanying drawings.
Fig. 1 is the synoptic diagram in kind of the signal source equipment of magnetic field intensity measurement mechanism in the utility model embodiment.Fig. 2 is the circuit connection diagram of magnetic field intensity measurement mechanism in the utility model embodiment, owing to the mechanical system that is connected between other each equipment in three-dimensional feed apparatus and water cooling equipment and the utility model device, therefore in Fig. 2, mainly show signal source equipment, Hall element and the solenoid of magnetic field intensity measurement mechanism.
Shown in Fig. 1-2, signal source equipment mainly comprises: (range of adjustment is that (range of adjustment is that (range of adjustment is 4.8V-5.2V) and digital voltmeter (being divided into 19.999V range and 1999.9mV range second gear) for 2.4V-2.6V), second D.C. regulated power supply to 0-0.5A), first D.C. regulated power supply to the numerical control adjustable current source.
As shown in Figure 2, the power switch of Reference numeral 1 expression signal source equipment, 2,3 represent the both positive and negative polarity connectivity port of numerical control adjustable current source respectively, the adjusting knob of 4 expression numerical control adjustable current sources, 5 expression reversing switch knobs, 6 expressions, the first D.C. regulated power supply connectivity port, 7 expressions, the second D.C. regulated power supply connectivity port, 8 the expression signal source equipments the common ground port, the adjusting knob of 9 expressions, first D.C. regulated power supply, the adjusting knob of 10 expressions, second D.C. regulated power supply, 11,12 represent the positive and negative port of digital voltmeter respectively, the range gear of 13 expression digital voltmeters, 14 expression current value display screens, 15 expression magnitude of voltage display screens, 16 expression reversing switch K2,17 expression K switch, 1,18 expression solenoid, part transmission module in the 19 schematically illustrated three-dimensional feed apparatus (the detailed formation of three feed apparatus is as shown in Figure 3), 20 expression Hall elements.
In the specific embodiment of the invention, numerical control adjustable current source, D.C. regulated power supply and the digital voltmeter in the signal source equipment can mode of the prior art realize that all the present invention does not do its physical circuit principle and gives unnecessary details.As shown in Figure 2, from the circuit outside, the both positive and negative polarity connectivity port 2,3 that connects the numerical control adjustable current source respectively can provide the numerical control adjustable current source, connection common ground port 8 and the first/two D.C. regulated power supply connectivity port 6 or 7 can provide the first/two D.C. regulated power supply, and the positive and negative port 11,12 that connects digital voltmeter respectively can provide the digital voltage table function.Therefore, realize to voltage source/current source/voltage table with from the outside among the present invention that it does not do painstakingly and distinguish in connectivity port of function separately.Simultaneously, the Hall element 20 in the specific embodiment of the invention also utilizes the prior art mode to realize, gets final product in order to realize the function that produces Hall voltage.
As shown in Figure 2, numerical control adjustable current source 2,3 can provide exciting current for long straight solenoid 18 by double-pole reversing switch K2, when reversing switch K2 is in upwards conduction position (being called " first conduction position " in the utility model) and downward conduction position when (being called " second conduction position " in the utility model), the exciting current directions that numerical control adjustable current source 2,3 provides for solenoid 18 are opposite, disconnect the exciting current supply to solenoid 18 when reversing switch K2 mediates (the utility model is called " open position ").
When the magnetic field intensity measurement mechanism of embodiment is regulated, make double-pole reversing switch K2 mediate to disconnect the exciting current supply earlier, Hall sensor 20 is under zero magnetic field condition, K switch 1 is connected to the right, regulate the output voltage of second D.C. regulated power supply, make that the shown magnitude of voltage of digital voltmeter is 2.500V, at this moment Hall sensor 20 has reached the standardization effort state, be Hall sensor 20 reached the numerical value of regulation by electric current, and residual voltage reaches compensation, i.e. U just
0=0V.
Then, still make double-pole reversing switch K2 mediate to disconnect the exciting current supply, keeping under the constant situation of " V+ " and " V-" voltage, K switch 1 is connected (the utility model calls " second place ") left, regulate the output voltage of first D.C. regulated power supply, making the shown magnitude of voltage of digital voltmeter is that 0(should point to the mV shelves with digital voltmeter range toggle switch 13 this moment), just the 2.500V potential difference (PD) of exporting with potential difference (PD) and the Hall element 20 of an external 2.500V compensates.Just can directly read the value U of the electric potential difference of Hall sensor with digital voltmeter like this, afterwards.
Fig. 3 is the structural drawing of the three-dimensional feed apparatus of magnetic field intensity measurement mechanism in the utility model embodiment.As shown in Figure 3, Reference numeral 30,31,21 is represented left and right directions among X(Fig. 3 of three-dimensional feed apparatus respectively), fore-and-aft direction among Y(Fig. 3), above-below direction among Z(Fig. 3) axis rail, 22 expression feeler levers, 23,29,25 represent X, Y, Z shaft position scale respectively, 24,26,28,32 be respectively trip bolt, 27 expression slide blocks.
Wherein, feeler lever 22 directly is connected with Hall element 20, can drive Hall element 20 and move along X, Y, three directions of Z in solenoid 18.When Hall element 20 need can move to drive Hall element 20 along guide rail 30 in X-direction by slide block 27, thereby change the position of Hall element 20 on directions X when X-direction move.If resistance was too big or loosening when slide block 27 moved, then suitably adjusting slider tightens the tightness of screw 28.Simultaneously, for anti-limited slip block 27 has the position to change in Y, Z-direction, can lock trip bolt 32 and the trip bolt 24 of guide rail 30 right-hand members.
Similarly, when Hall element 20 need unclamp the trip bolt 32 of guide rail 30 right-hand members when Y direction moves, touch feeler lever 22 and make it evenly mobile along guide rail 31, thereby change the position of Hall element on Y-direction.When Hall element 20 need unclamp trip bolt 24 when Z-direction moves, feeler lever 22 can move up and down along guide rail 21, thereby changes the position of Hall element on the Z direction.Three-dimensional feed apparatus all is furnished with position scale 23,29,25 on X, Y, Z direction, when measuring the three-dimensional magnetic field, can determine the three-dimensional coordinate of space magnetic field easily like this.
Fig. 4 is the structural drawing of the water cooling equipment of magnetic field intensity measurement mechanism in the utility model embodiment.In embodiment, the tap water that this water cooling equipment utilization circulates cools off solenoid, thereby reduces the influence that solenoidal heating is measured magnetic field intensity.This water cooling equipment mainly comprises water inlet end, annulus and water side.As shown in Figure 4, Reference numeral 41 expression water inlet ends, 42 expression annuluss, 18 expression solenoids, 43 expression current, and 44 express water end (W.E.).
As shown in Figure 4, solenoid 18 is on annulus 42, and annulus 42 the insides dress tap water, tap water 43 flow into annulus 42 by water inlet end 41 and 44 outflows from the water side, circulate with formation.Therefore this water cooling equipment can be eliminated the heat that solenoid sends fast, can suitably improve the exciting current size and can be owing to the solenoid exciting current impacts measurement by overlong time.
According to above-mentioned embodiment introduction as can be known, the utility model provides a kind of magnetic field intensity measurement mechanism based on Hall effect, thereby can measure magnetic field intensity continuously linearly, has realized more intelligent, more accurate, more practical magnetic field intensity measurement.
Claims (9)
1. a magnetic field intensity measurement mechanism is characterized in that, described device comprises: signal source equipment, Hall element, solenoid, three-dimensional feed apparatus and water cooling equipment.
2. device according to claim 1 is characterized in that,
Described signal source equipment is used to described solenoid that exciting current is provided, and for described Hall element provides operating voltage, and measures the Hall voltage that described Hall element is exported;
Described three-dimensional feed apparatus is used for making described Hall element mobile at three dimensions, and measures the position of described Hall element in three dimensions; And
Described water cooling equipment is used for utilizing circulating water flow to cool off described solenoid, to eliminate the heat that described solenoid is sent.
3. device according to claim 2 is characterized in that, described signal source equipment further comprises: numerical control adjustable current source, first D.C. regulated power supply, second D.C. regulated power supply and digital voltmeter, wherein
Described numerical control adjustable current source is used to described solenoid that exciting current is provided;
Described first D.C. regulated power supply and described second D.C. regulated power supply are used to described Hall element that operating voltage is provided; And
Described digital voltmeter is used for measuring the Hall voltage that described Hall element is exported.
4. device according to claim 3, it is characterized in that, the range of adjustment of described numerical control adjustable current source is 0-0.5A, the range of adjustment of described first D.C. regulated power supply is 2.4V-2.6V, the range of adjustment of described second D.C. regulated power supply is 4.8V-5.2V, described digital voltmeter has two kinds of ranges, is respectively 19.999V range and 1999.9mV range.
5. device according to claim 4 is characterized in that, described signal source equipment further comprises a reversing switch K2, and described numerical control adjustable current source provides exciting current for described solenoid by described reversing switch K2,
Wherein, when described reversing switch K2 is in first conduction position and second conduction position, the exciting current direction that described numerical control adjustable current source provides for described solenoid is opposite, when described reversing switch K2 is in open position, disconnects and gives described solenoidal exciting current supply.
6. device according to claim 5 is characterized in that, described signal source equipment further comprises a K switch 1,
Wherein, when described K switch 1 is in primary importance, two lead-in wire V+ of described Hall element are connected with the positive and negative two ends of described second D.C. regulated power supply respectively with V-, in order to operating voltage is provided for described Hall element, and two lead-in wire Vout of described Hall element are connected the positive and negative terminal of described digital voltmeter with V-, in order to export Hall voltage.
7. device according to claim 6, it is characterized in that, when described magnetic field intensity measurement mechanism is regulated, make described reversing switch K2 be in open position earlier, so that described Hall sensor is under zero magnetic field condition, make described K switch 1 be in primary importance, regulate the output voltage of described second D.C. regulated power supply, make that the shown magnitude of voltage of described digital voltmeter is 2.500V, at this moment described Hall sensor reaches the standardization effort state;
Then, still make described reversing switch K2 be in open position, make described K switch 1 be in the second place, regulate the output voltage of described first D.C. regulated power supply, making the shown magnitude of voltage of described digital voltmeter is 0, and namely the 2.500V potential difference (PD) of exporting with potential difference (PD) and the described Hall element of an external 2.500V compensates.
8. device according to claim 1, it is characterized in that, described three-dimensional feed apparatus further comprises the guide rail of feeler lever, three-dimensional, the position scale of three-dimensional, trip bolt and the slide block of three-dimensional, wherein said feeler lever directly is connected with described Hall element, is used for driving described Hall element and moves along three-dimensional in solenoid.
9. device according to claim 1, it is characterized in that, described water cooling equipment comprises: water inlet end, annulus and water side, wherein said solenoid is on described annulus, tap water flows into described annulus by described water inlet end and flows out from described water side, circulates with formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005212 CN203037836U (en) | 2013-01-06 | 2013-01-06 | Magnetic field strength measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005212 CN203037836U (en) | 2013-01-06 | 2013-01-06 | Magnetic field strength measurement device |
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| CN203037836U true CN203037836U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320005212 Expired - Lifetime CN203037836U (en) | 2013-01-06 | 2013-01-06 | Magnetic field strength measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076576A (en) * | 2013-01-06 | 2013-05-01 | 山西省电力公司大同供电分公司 | Magnetic field intensity measuring device |
| CN104215918A (en) * | 2014-09-25 | 2014-12-17 | 中国工程物理研究院流体物理研究所 | Chamber two-dimensional distribution measuring device |
-
2013
- 2013-01-06 CN CN 201320005212 patent/CN203037836U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076576A (en) * | 2013-01-06 | 2013-05-01 | 山西省电力公司大同供电分公司 | Magnetic field intensity measuring device |
| CN103076576B (en) * | 2013-01-06 | 2015-12-09 | 山西省电力公司大同供电分公司 | Magnetic field intensity measurement mechanism |
| CN104215918A (en) * | 2014-09-25 | 2014-12-17 | 中国工程物理研究院流体物理研究所 | Chamber two-dimensional distribution measuring device |
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Granted publication date: 20130703 |