CN102519632A - Novel four-hole site coil integral force transducer based on principle of piezomagnetic effect - Google Patents
Novel four-hole site coil integral force transducer based on principle of piezomagnetic effect Download PDFInfo
- Publication number
- CN102519632A CN102519632A CN2011103410292A CN201110341029A CN102519632A CN 102519632 A CN102519632 A CN 102519632A CN 2011103410292 A CN2011103410292 A CN 2011103410292A CN 201110341029 A CN201110341029 A CN 201110341029A CN 102519632 A CN102519632 A CN 102519632A
- Authority
- CN
- China
- Prior art keywords
- hole
- coil
- vertical
- winding
- novel
- 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.)
- Granted
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a novel four-hole site coil integral force transducer based on the principle of piezomagnetic effect. The force transducer comprises a transducer piezomagnetic body, a horizontal hole site, a horizontal coil W1.2, a vertical hole site, a vertical coil W3.4, a differential rectification output circuit, an excitation transformer and a low-frequency excitation power supply. In the invention, a horizontal hole site measurement coil and a vertical hole site compensation coil in a measurement area are completely separated; based on the inherent characteristic of the magnetic body material that the longitudinal magnetic conductivity parallel to an external force F is very sensitive to stress while the transverse magnetic conductivity vertical to the external force F is not sensitive to the stress, the measurement circuit is designed as an inductive four-wall balanced bridge according to the electric principle; and the bridge output is in a current rectification and resistance voltage reduction mode so as to realize an integral optimization measurement circuit with three-wire excitation, differential compensation and DC (direct current) output.
Description
Technical field
The invention belongs to the force measurement technical field of machinery, electronics, electromagnetism, mechanics integrated transducer, definite says, is a kind of monoblock type force cell that relates to the four hole bit line circles of using the piezomagnetic effect principle.
Background technology
The piezomagnetic effect principle is existing over half a century since eighties of last century is employed the sixties, and it is the most extensive to be with Sweden ABB AB that the piezomagnetic force cell of representative is used, its each item technical performance index so far as yet the someone surmount.
The material of ABB force cell is a magnetically soft alloy stainless steel siliconized plate; Structure is the bonding or bonding form of reeling of lamination, and the coil hole position of measured zone is four hole symmetrical structures, and two windings are the quadrature coiling; Its principle is quadrature coupling (coupling scheme, the askew formula coupling of magnetic partially), shown in Fig. 1 (a).Among the figure, be processed with four symmetrical passes on the every siliconized plate, i.e. hole 1, hole 2 and hole 3, hole 4, and paste into iron core by the multi-disc siliconized plate.Hole 1,2 in hole are wound with field copper W12, and hole 3,4 in hole are wound with measures winding W34, when the magnetic field that field copper W12 will produce a certain size in the iron-core workpiece during through exchange current; If be divided into A, B, C, four zones of D to the hole interdigit of measured zone; Under the situation that does not receive external force, the magnetic permeability u in A, B, C, four zones of D is identical, and distributes axisymmetricly; Resultant magnetic field intensity H is parallel to the plane of measuring winding W34; Magnetic field (magnetic line of force) is not coupled with measuring winding W34, can not produce induced potential so measure winding W34, shown in Fig. 1 (b).Under the situation that receives external force F, sensor iron core inside will receive the effect of stress σ, and the magnetic permeability u counter stress σ in A, B zone that at this moment is parallel to external force F is very responsive, and this regional magnetic permeability u is descended, and magnetic resistance increases, and winding inductance quantity diminishes.And insensitive perpendicular to the regional magnetic permeability u counter stress σ of C, the D of external force F, magnetic permeability u is constant, at this moment; The magnetic permeability u in A, B, C, four zones of D no longer is uniform; The magnetic field that field copper W12 produced (magnetic line of force) will redistribute according to the difference of each regional magnetic permeability u, and shown in Fig. 1 (c), at this moment intensity H in resultant magnetic field no longer is parallel to the plane of measuring winding W34; Wherein a part of magnetic field (magnetic line of force) produces induced potential E with measuring winding W34 coupling; The power value is big more, and the magnetic flux of coupling is many more, and it is also just big more to produce induced potential E.Induced potential E just can obtain electric signal output after impedance conversion, this electric signal can represent with electric current I or voltage U, and with being in proportion by dynamometry value F.
With Sweden ABB is the bonding piezomagnetic force cell of four pore structure laminations of representative; Although in its qualities of aspect such as load resistant power, serviceable life and performance index is extraordinary; But for manufacturer; Its manufacturing process is very complicated, cuts out, punching, deburring, thermal treatment, cleaning, oven dry, lamination bonding (annular is bonding for reeling), assembling, timeliness, polishes, wears operation such as coiling through sheet shape approximately.Owing to be the bonding structure of lamination, therefore under the bigger external force situation of unbalance loading, press easily and loose.On its principle, quadrature coupling exciting power big (650VA) does not meet modern requirements of saving energy, and the impedance matching of its output circuit is complicated, and especially temperature compensation more need be done meticulous loaded down with trivial details adjustment.For the user, cost an arm and a leg in addition,, should not promote in the not high industry spot of some accuracy requirements.
The bonding pressure magnetic survey force transducer of the lamination of some other known pass structure is also just like middle font, matrix pattern.These two kinds of sensors that sheet shape is pasted, overall volume is big, and lifting surface area is little, only adapts to the sensor of making little tonnage range or specific use.
Existing one-piece construction presses magnetic survey force transducer coil hole position to be two hole horizontal structures, and as shown in Figure 2: its principle is inductance type or transformer type, adopts the power frequency excitation.Owing to be one-piece construction, power frequency excitation, coil by excitation after, under the situation that does not receive external force F effect; Measured zone will produce than the maelstrom temperature rise magnetic loss is increased, and makes the irregular drift of initial permeability u of magnetic, and long-term frequent loading and unloading (in the limit of elasticity scope); Will cause that through certain hour the magnetic permeability u of measured zone is on a declining curve; Magnetic can not return to previous status, causes outputting measurement value under the situation of equal load, will progressively to diminish, and makes swinging of signal, big, the unloading back non-return-to-zero at zero point of drift; Range ability diminishes, and the measurement loop of position, single two hole horizontal coil is difficult to overcome these defectives.It is diffusing that conceptive one-piece construction presses the magnetic survey force transducer can not press, but magnetic permeability u reduction makes its measured value can not reflect true value, and in fact sensor can not use.
Summary of the invention
The objective of the invention is to press progressive the diminishing of magnetic permeability of magnetic survey force transducer existence for the one-piece construction that solves position, two holes horizontal coil; Defectives such as temperature is floated greatly, signal non-return-to-zero, poor repeatability; A kind of integrally-built pressure magnetic survey in position, four holes force transducer of measured zone is provided; Can be applicable to various mill milling force measurements, also can be applicable to the various large-tonnages occasion of weighing.
A kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle comprise sensor pressure magnetic body, lateral aperture position, horizontal coil W
1.2, upright opening position, vertical coil W
3.4, differential rectification output loop, exciting transformer and low frequency excitation power supply;
Said sensor presses the magnetic body to be provided with many group measured zone, and every group of measured zone is provided with lateral aperture position and upright opening position, and the lateral aperture position comprises hole A
1With hole A
2, hole A
1With hole A
2Be horizontally disposed with hole A
1With hole A
2Between wear around horizontal coil W
1.2Also be provided with the upright opening position on every group of measured zone, the upright opening position comprises hole A
3With hole A
4, hole A
3With hole A
4Vertical setting, hole A
3With hole A
4Between wear around vertical coil W
3.4Described hole A
1, hole A
2, hole A
3With hole A
4Diameter is identical, hole A
1With hole A
2Pitch of holes and hole A
3With hole A
4Pitch of holes identical; Said hole A
1With hole A
2The center, hole must press on the magnetic body thickness center line said hole A
3With hole A
4The center of pitch of holes must pressed on the magnetic body thickness center line.Described horizontal coil W
1.2With vertical coil W
3.4Equal turn numbers; The differential rectification output loop is by four high diode temperature D
1, D
2, D
3, D
4Form rectifier bridge, the rectifier bridge anode is connected with the loaded impedance Rf two ends of output loop respectively with negative electrode, and as power value signal output terminal; The horizontal coil W of many group measured zone
1.2Horizontal winding is formed in the series connection back, is provided with tie point W ', organizes the vertical coil W of measured zone more
3.4Vertical winding is formed in the series connection back, is provided with tie point Z ', and horizontal winding is connected in series with vertical winding, and its tie point is made as Y '; The diode D of rectifier bridge
1, D
4Tie point J ' be connected the diode D of rectifier bridge with the tie point Y ' of horizontal winding and vertical winding
2, D
3Tie point J be connected with the tie point Y point of two coils of exciting transformer secondary winding; Said exciting transformer secondary winding W point is through differential rectification output loop H and H ' and horizontal coil W
1.2W ' connection, and exciting transformer secondary winding Z point is through differential rectification output loop K and K ' and vertical coil W
3.4Z ' some connection; The elementary winding of exciting transformer connects the low frequency excitation power supply, and the low frequency excitation power supply provides AC power.
The invention has the advantages that:
(1) pressure magnetic bulk material of the present invention is the high magnetic permeability magnetically soft alloy for iron nickel system or iron aluminium, can under the low-intensity magnetic field condition, work, reduce greatly exciting power (ABB650VA, the present invention 15～30VA), meet energy-conservation requirement;
(2) the present invention separates the lateral aperture position of measured zone measurement coil with upright opening position compensating coil fully; Utilize the inherent characteristic of pressing the magnetic bulk material; The longitudinal direction magnetic permeability counter stress that promptly is parallel to external force F is very responsive; And insensitive perpendicular to the transverse magnetic conductance counter stress of external force F, from electrical principle, be designed to inductance type wall balanced bridge measuring the loop, current commutates is adopted in electric bridge output; The form of resistance step-down, thus the loop is measured in the integral type optimal combination that has realized three-way excitation, differential compensation, direct current output;
(3) adopt low frequency excitation, can overcome the irregular drift of the initial permeability u that the increase of eddy current temperature rise magnetic loss causes and defectives such as the temperature that causes is floated, drift, range variation;
(4) adopt balanced bridge; The further irregular drift of the initial permeability u that causes of compensation of eddy currents temperature rise magnetic loss increase further improves the technical performance index and the range ability such as degree of stability, sensitivity, repeatability, the linearity, return difference of sensor output signal;
(5) output loop of employing current commutates differential compensation; To the direct rectification of exciting current; Can overcome the defective that general ac small signal is difficult for rectification fully, the be more convenient for signal Processing of long-distance transmissions and subsequent conditioning circuit of direct current large-signal can further improve antijamming capability;
(6) output impedance of the present invention low (15 ohm～24 ohm), direct current signal, output signal big (0～500mV).
Description of drawings
Fig. 1 is the ABB load cell structure synoptic diagram in the background technology;
Fig. 2 is that the one-piece construction in the background technology is pressed magnetic survey force transducer coil hole bit architecture synoptic diagram;
Fig. 3 is a structural representation of the present invention.
Among the figure:
1-presses the magnetic body; 2-lateral aperture position; 3-horizontal coil W
1.24-upright opening position; 5-vertical coil W
3.46-differential rectification output loop; The 7-exciting transformer; 8-low frequency excitation power supply.
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further detailed description below.
The present invention is a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle, and is as shown in Figure 3, comprises sensor pressure magnetic body 1, lateral aperture position 2, horizontal coil W
1.23, upright opening position 4, vertical coil W
3.45, differential rectification output loop 6, exciting transformer 7 and low frequency excitation power supply 8.
Shown in Fig. 3 a and Fig. 3 b; The iron silicon system of each same sex of material employing magnetic of said sensor pressure magnetic body 1 does not have the orientation magnetically soft alloy, polishes and obtains through steel ingot forging, machine-shaping (circle, annular or rectangle), vacuum heat (eliminate internal stress and recover magnetic property), stress surface.
Sensor presses magnetic body 1 to be provided with many group measured zone, and every group of measured zone is provided with lateral aperture position 2 and upright opening position 4, and lateral aperture position 2 comprises hole A
1With hole A
2, hole A
1With hole A
2Be horizontally disposed with hole A
1With hole A
2Between wear around horizontal coil W
1.23.Also be provided with upright opening position 4 on every group of measured zone, upright opening position 4 comprises hole A
3With hole A
4, hole A
3With hole A
4Vertical setting, hole A
3With hole A
4Between wear around vertical coil W
3.45.
Described hole A
1, hole A
2, hole A
3With hole A
4Diameter is identical, hole A
1With hole A
2Pitch of holes and hole A
3With hole A
4Spacing is identical, said hole A
1With hole A
2The center of pitch of holes is A to the hole
3With hole A
4The distance of the hole line of centres more than or equal to three times an of pitch of holes.Said hole A
1With hole A
2The cutting plane of pitch of holes must, hole A vertical with external force F
3With hole A
4The cutting plane of pitch of holes must be parallel with external force F.Said hole A
1With hole A
2The center, hole must press on the magnetic body thickness center line said hole A
3With hole A
4The center of pitch of holes must pressed on the magnetic body thickness center line.
Described horizontal coil W
1.23 with vertical coil W
3.45 the number of turn is equal fully, and winding wire can use multiply high temperature resistant and have the aviation lead or a high strength enamelled wire of high-insulation crust.
Described hole A
1, hole A
2, hole A
3, hole A
4Measured zone is divided into A, B, C, four zones of D.
Differential rectification output loop 6 is by four high diode temperature D
1, D
2, D
3, D
4Form rectifier bridge, the rectifier bridge anode is connected with the loaded impedance Rf two ends of output loop respectively with negative electrode, and as power value signal output terminal.
The horizontal coil W of many group measured zone
1.2Horizontal winding is formed in the series connection back, is provided with tie point W ', organizes the vertical coil W of measured zone more
3.4Vertical winding is formed in 5 series connection backs, is provided with tie point Z ', and horizontal winding is connected in series with vertical winding, and its tie point is made as Y '.
The diode D of rectifier bridge
1, D
4Tie point J ' be connected the diode D of rectifier bridge with the tie point Y ' of horizontal winding and vertical winding
2, D
3Tie point J be connected with the tie point Y point of two coils of exciting transformer 7 secondary winding.Said exciting transformer 7 secondary winding W points are through differential rectification output loop H and H ' and horizontal coil W
1.23 W ' connection, and exciting transformer 7 secondary winding Z points are through differential rectification output loop K and K ' and vertical coil W
3.45 a Z ' connection.
The diode D of said differential rectification output loop
1, D
2, D
3, D
4Reach loaded impedance Rf and be welded on the little wiring board, be implanted in sensor internal through after the insulation processing.
Exciting transformer 7 elementary windings connect low frequency excitation power supply 8, and low frequency excitation power supply 8 provides AC power.
Position, four hole provided by the invention one-piece construction is pressed the magnetic survey force transducer, is many groups of sensor horizontal coil W
1.2Horizontal winding is formed in 3 series connection backs, many group vertical coil W
3.4Vertical winding is formed in 5 series connection backs; Its mid point connected and composed a wall inductance type balanced bridge through two coils of differential rectification output loop 6 and exciting transformer 7 secondary winding after these two windings connected; Two coils of exciting transformer 7 secondary winding are as two balance walls of electric bridge, horizontal coil W
1.23 measurement walls as electric bridge, vertical coil W
3.45 compensation walls as electric bridge.After exciting transformer 7 elementary windings were passed to just profound alternating voltage E, two coils of exciting transformer 7 secondary winding were exported the E/2 magnitude of voltage respectively, through the differential rectification output loop to horizontal winding W
1.23 with vertical winding W
3.45 carry out excitation.If be divided into vertical and horizontal to each measured zone, shown in Fig. 3 a, vertically be defined as A, B direction; Laterally be defined as C, D direction; Pressing down magnetic body interior magnetic in the situation that does not receive external force F is each same sex of magnetic, and the magnetic permeability u of whole measured zone is identical, again because horizontal winding W
1.23 with vertical winding W
3.45 number of turns are equal fully, and this moment is at horizontal winding W
1.23 with vertical winding W
3.4The exciting current that produces in 5 is also equal fully, i.e. i1=i2.Exciting current i1 is through diode D
1And D
2Get back to the mid point Y of two coils of exciting transformer 7 secondary winding through loaded impedance Rf, and i2 is through diode D
3And D
4Also get back to the mid point Y of two coils of exciting transformer 7 secondary winding through loaded impedance Rf; The amplitude of these two current signals equates; In the opposite direction; Therefore the amplitude of the voltage signal of loaded impedance Rf equals zero, and current signal i0=i1-i2=0mA is promptly arranged, voltage signal U=0mA X Rf=0mV.Receive the change of environment temperature, eddy current temperature rise, field voltage fluctuation and cause the sensor measurement regional magnetic field that variation has taken place at sensor, electric bridge still was in equilibrium state and promptly exported electric signal U=0mV this moment.When sensor is done the time spent shown in Fig. 3 b receiving external force F; Press the equilibrium state of each same sex of magnetic body interior magnetic to be destroyed, the magnetic permeability u counter stress σ of vertical A, B direction that is parallel to external force F is very responsive, and stress σ descends the magnetic permeability u of this direction; Magnetic resistance increases; Winding inductance quantity diminishes, and current i 1 increases, and increases in the amplitude of the voltage signal U1 of loaded impedance Rf.And insensitive perpendicular to the magnetic permeability u counter stress σ of the horizontal C of external force F, D direction, magnetic permeability u is constant, and current i 2 is constant.Existing Δ i1=(i1+ Δ i1)-i2, and voltage signal U=Δ U1=Δ i1 * Rf that Δ i1 produces at the two ends of loaded impedance Rf.External force F value is big more, and Δ i1 current change quantity is big more, and the voltage signal U that produces at the two ends of loaded impedance Rf is also just big more, and the voltage signal U value of output is listed as with being become to compare by the size of dynamometry value F.
Sensor of the present invention presses the material of magnetic body can adopt iron silicon system, iron aluminium system and iron nickel magnetically soft alloy.Contour structures can be processed into the one-piece construction of circle, annular, rectangle, and its thickness is 50mm～74mm.
The frequency of said low frequency excitation power supply is 10HZ～25HZ, and power consumption is 10W～30W, and the present invention adopts low frequency, and ((10W～30W) carries out excitation to 10HZ～25HZ) low-power consumption.
The present invention is designed to inductance type wall balanced bridge from electrical principle; Thereby the loop is measured in the integral type optimal combination that has realized three-way excitation, differential compensation, direct current output; The integrally-built pressure magnetic survey force transducer that can overcome position, existing two hole horizontal coil fully is (in the eddy current temperature rise of measured zone and zero point drift and the unloading non-return-to-zero that the environment temperature becomes and power-supply fluctuation brings; Load signal is progressive to diminish) defective that exists, further improved the technical indicators such as degree of stability, sensitivity, repeatability, the linearity, range ability of sensor force value signal.
The present invention is different fully with stacked four hole position orthohormbic structure and existing monoblock type two hole bit architectures; But be divided into two windings to whole measured zone; Be horizontal winding and vertical winding, horizontal winding is as measuring winding, and vertical winding is as the compensation winding; Two groups of coil turns are identical, two winding coils serial connection.Two coil tandems of exciting transformer Secondary Winding, its mid point connects to form balanced bridge with horizontal winding with vertical winding mid point through the differential rectification output loop.Shown in Fig. 3 a, in order to reduce eddy current loss magnetic loss is reduced, keep magnetic property constant, electric bridge uses low frequency excitation.Output loop adopts the step-down of differential type current commutates resistance, and signal is the differential output of direct current.The present invention uses element few; At the bottom of the output impedance, circuit is simple, is easy to adjustment; Realize the integral type optimal combination that three-way excitation, differential compensation, direct current are exported from electrical principle, can overcome the eddy current temperature rise of measured zone and the adverse effect that the environment temperature becomes and power-supply fluctuation brings fully.
Claims (8)
1. the novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle is characterized in that, comprise sensor pressure magnet, lateral aperture position, horizontal coil W
1.2, upright opening position, vertical coil W
3.4, differential rectification output loop, exciting transformer and low frequency excitation power supply;
Said sensor presses magnet to be provided with many group measured zone, and every group of measured zone is provided with lateral aperture position and upright opening position, and the lateral aperture position comprises hole A
1With hole A
2, hole A
1With hole A
2Be horizontally disposed with hole A
1With hole A
2Between wear around horizontal coil W
1.2Also be provided with the upright opening position on every group of measured zone, the upright opening position comprises hole A
3With hole A
4, hole A
3With hole A
4Vertical setting, hole A
3With hole A
4Between wear around vertical coil W3
.45; Described hole A
1, hole A
2, hole A
3With hole A
4Diameter is identical, hole A
1With hole A
2Pitch of holes and hole A
3With hole A
4Pitch of holes identical, said hole A
1With hole A
2The center, hole must press on the magnetic body thickness center line said hole A
3With hole A
4The center of pitch of holes must pressed on the magnetic body thickness center line.Described horizontal coil W
1.2With vertical coil W
3.4Equal turn numbers; The differential rectification output loop is by four high diode temperature D
1, D
2, D
3, D
4Form rectifier bridge, the rectifier bridge anode is connected with the loaded impedance Rf two ends of output loop respectively with negative electrode, and as power value signal output terminal; The horizontal coil W of many group measured zone
1.2Horizontal winding is formed in the series connection back, is provided with tie point W ', organizes the vertical coil W of measured zone more
3.4Vertical winding is formed in the series connection back, is provided with tie point Z ', and horizontal winding is connected in series with vertical winding, and its tie point is made as Y '; The diode D of rectifier bridge
1, D
4Tie point J ' be connected the diode D of rectifier bridge with the tie point Y ' of horizontal winding and vertical winding
2, D
3Tie point J be connected with the tie point Y point of two coils of exciting transformer secondary winding; Said exciting transformer secondary winding W point is through differential rectification output loop H and H ' and horizontal coil W
1.2W ' connection, and exciting transformer secondary winding Z point is through differential rectification output loop K and K ' and vertical coil W
3.4Z ' some connection; The elementary winding of exciting transformer connects the low frequency excitation power supply, and the low frequency excitation power supply provides AC power.
2. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that, said sensor is pressed magnet to polish through steel ingot forging, machine-shaping, vacuum heat, stress surface and obtained.
3. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that, said sensor presses magnet to adopt iron silicon system, iron aluminium system or iron nickel magnetically soft alloy.
4. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that, it is circle, annular or rectangle that said sensor is pressed the integrally-built profile of magnet.
5. according to claim 1,2,3 or 4 described a kind of novel four hole bit line circle one-piece construction force cells, it is characterized in that it is 50mm～74mm that said sensor is pressed magnet thickness based on the piezomagnetic effect principle.
6. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that said hole A
1With hole A
2The center of pitch of holes is A to the hole
3With hole A
4The distance of the hole line of centres more than or equal to three times an of pitch of holes.
7. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that said hole A
1With hole A
2The cutting plane of pitch of holes must, hole A vertical with external force F
3With hole A
4The cutting plane of pitch of holes must be parallel with external force F.
8. a kind of novel four hole bit line circle one-piece construction force cells based on the piezomagnetic effect principle according to claim 1 is characterized in that the diode D of said differential rectification output loop
1, D
2, D
3, D
4And on wiring board of loaded impedance Rf welding, be implanted in sensor internal through after the insulation processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110341029 CN102519632B (en) | 2011-11-02 | 2011-11-02 | Four-hole site coil integral force transducer based on principle of piezomagnetic effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110341029 CN102519632B (en) | 2011-11-02 | 2011-11-02 | Four-hole site coil integral force transducer based on principle of piezomagnetic effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519632A true CN102519632A (en) | 2012-06-27 |
| CN102519632B CN102519632B (en) | 2013-10-23 |
Family
ID=46290631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110341029 Active CN102519632B (en) | 2011-11-02 | 2011-11-02 | Four-hole site coil integral force transducer based on principle of piezomagnetic effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102519632B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697677A (en) * | 2015-03-09 | 2015-06-10 | 中国科学院宁波材料技术与工程研究所 | Piezomagnetic stress sensor |
| CN108195281A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezomagnetic material |
| CN108827500A (en) * | 2018-05-10 | 2018-11-16 | 北京中博力科测控技术有限公司 | High resiliency pressure magnetic ontology and high resiliency load cell based on piezomagnetism |
| CN112629734A (en) * | 2020-12-31 | 2021-04-09 | 山东大学 | Spherical three-dimensional force-measuring piezomagnetic sensor and three-dimensional force measuring method thereof |
| CN113196026A (en) * | 2018-12-20 | 2021-07-30 | 恩德莱斯和豪瑟尔欧洲两合公司 | Pressure gauge comprising a device for offsetting an isolation diaphragm |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193294A (en) * | 1976-12-28 | 1980-03-18 | Asea Aktiebolag | Magnetoelastic transducer with linear and temperature-independent characteristic |
| SU852233A1 (en) * | 1980-02-06 | 1981-08-07 | Горский Сельскохозяйственный Институт | Grape harvesting and processing machine |
| SU1362966A1 (en) * | 1986-03-04 | 1987-12-30 | Предприятие П/Я В-2015 | Magnetoelastic meter |
| CN87207152U (en) * | 1987-06-08 | 1988-03-09 | 机械委上海工业自动化仪表研究所 | Units-composite magnetic-elastic dynamometric weight sensor |
| CN87211278U (en) * | 1987-10-14 | 1988-06-08 | 国家机械工业委员会上海工业自动化仪表研究所 | Small value force magneto elastic sensor |
| CN1148889A (en) * | 1994-05-17 | 1997-04-30 | 迈克尔·阿尔特怀恩 | Measurement device based on a strain gauge, use thereof and modulation amplifier for such measurement devices |
| CN1432800A (en) * | 2002-01-16 | 2003-07-30 | 石油大学(北京) | Casing stress detecting probe and instrument for oil and water well |
| CN201464089U (en) * | 2009-05-08 | 2010-05-12 | 上海西派埃自动化仪表工程有限责任公司 | Magnetoelasticity dynamometer |
-
2011
- 2011-11-02 CN CN 201110341029 patent/CN102519632B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193294A (en) * | 1976-12-28 | 1980-03-18 | Asea Aktiebolag | Magnetoelastic transducer with linear and temperature-independent characteristic |
| SU852233A1 (en) * | 1980-02-06 | 1981-08-07 | Горский Сельскохозяйственный Институт | Grape harvesting and processing machine |
| SU1362966A1 (en) * | 1986-03-04 | 1987-12-30 | Предприятие П/Я В-2015 | Magnetoelastic meter |
| CN87207152U (en) * | 1987-06-08 | 1988-03-09 | 机械委上海工业自动化仪表研究所 | Units-composite magnetic-elastic dynamometric weight sensor |
| CN87211278U (en) * | 1987-10-14 | 1988-06-08 | 国家机械工业委员会上海工业自动化仪表研究所 | Small value force magneto elastic sensor |
| CN1148889A (en) * | 1994-05-17 | 1997-04-30 | 迈克尔·阿尔特怀恩 | Measurement device based on a strain gauge, use thereof and modulation amplifier for such measurement devices |
| CN1432800A (en) * | 2002-01-16 | 2003-07-30 | 石油大学(北京) | Casing stress detecting probe and instrument for oil and water well |
| CN201464089U (en) * | 2009-05-08 | 2010-05-12 | 上海西派埃自动化仪表工程有限责任公司 | Magnetoelasticity dynamometer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697677A (en) * | 2015-03-09 | 2015-06-10 | 中国科学院宁波材料技术与工程研究所 | Piezomagnetic stress sensor |
| CN108195281A (en) * | 2017-12-22 | 2018-06-22 | 太原理工大学 | A kind of ice layer thickness measuring device based on piezomagnetic material |
| CN108195281B (en) * | 2017-12-22 | 2020-11-13 | 太原理工大学 | Ice layer thickness measuring device based on piezomagnetic material |
| CN108827500A (en) * | 2018-05-10 | 2018-11-16 | 北京中博力科测控技术有限公司 | High resiliency pressure magnetic ontology and high resiliency load cell based on piezomagnetism |
| CN108827500B (en) * | 2018-05-10 | 2020-08-25 | 北京中博力科测控技术有限公司 | High-elasticity piezomagnetic body based on piezomagnetic effect and high-elasticity force cell |
| CN113196026A (en) * | 2018-12-20 | 2021-07-30 | 恩德莱斯和豪瑟尔欧洲两合公司 | Pressure gauge comprising a device for offsetting an isolation diaphragm |
| CN113196026B (en) * | 2018-12-20 | 2023-05-26 | 恩德莱斯和豪瑟尔欧洲两合公司 | Pressure gauge comprising a device for displacing an isolation diaphragm |
| CN112629734A (en) * | 2020-12-31 | 2021-04-09 | 山东大学 | Spherical three-dimensional force-measuring piezomagnetic sensor and three-dimensional force measuring method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102519632B (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102519632B (en) | Four-hole site coil integral force transducer based on principle of piezomagnetic effect | |
| CN202661525U (en) | Coaxial double-loop magnetic core structure assembly for core-through type high precision opened-loop type Hall current sensor | |
| CN100501360C (en) | Magnetostrictive stress sensor | |
| CN202749218U (en) | Current transformer based on PCB (printed circuit board)-type Rogowski coil | |
| CN103278229B (en) | Helicopter weighing measurement device and helicopter center of gravity measurement method | |
| CN106706990B (en) | Magnetic core air gap fixing structure assembly for through-core type Hall current sensor | |
| CN101776435A (en) | Dielectric-capacitance testing method of deformation degree of transformer winding | |
| CN202305632U (en) | A Hall current sensor having double Hall elements and automobile power system adopting the Hall current sensor having the double Hall elements | |
| CN108827500B (en) | High-elasticity piezomagnetic body based on piezomagnetic effect and high-elasticity force cell | |
| CN203744926U (en) | Flatness detection equipment for currency detector foundation board | |
| CN212209198U (en) | Passive zero-flux wide-range current transformer for metering | |
| CN201184830Y (en) | Ultra magnetic deformation pressure sensor and the sensor combination | |
| CN102721428B (en) | Speed-displacement sensor | |
| CN102426909A (en) | Direct current resisting transformer based on composite magnetic core and manufacturing method thereof | |
| CN105526854A (en) | A miniature eddy current sensor based on double coils | |
| CN106653339B (en) | Current transformer | |
| CN210803568U (en) | Alternating current sensor | |
| CN206515385U (en) | A kind of core-theaded type Hall current sensor magnetic core air gap fixed structure assembly | |
| CN203798887U (en) | Open-loop Hall current sensor | |
| CN201749142U (en) | Double-coil current sensor | |
| CN211553150U (en) | Non-contact torque sensor | |
| CN202486194U (en) | Current sensor based on Rogowski coil | |
| CN112629734B (en) | Spherical three-dimensional force-measuring piezomagnetic sensor and three-dimensional force measuring method thereof | |
| CN1048627A (en) | The current transformer of high permeance | |
| CN110749390A (en) | Non-contact torque sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |