CN2220629Y - Magnetic sensitive angle sensor - Google Patents
Magnetic sensitive angle sensor Download PDFInfo
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- CN2220629Y CN2220629Y CN 95200068 CN95200068U CN2220629Y CN 2220629 Y CN2220629 Y CN 2220629Y CN 95200068 CN95200068 CN 95200068 CN 95200068 U CN95200068 U CN 95200068U CN 2220629 Y CN2220629 Y CN 2220629Y
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- magnet
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Abstract
The utility model relates to a magnetic sensitive angle sensor. The utility model utilizes the operating principle of the magnetoelectric changing element of the magnetic sensitive resistance effect. The utility model is composed of a shaft magnetic assembly, a chip, a compensating circuit and an outer shell assembly. The utility model is characterized in that the magnet of the shaft magnetic assembly adopts an L-shaped structure, and is pasted on the magnet by the adhesive; the distance of the chip and the magnet is small; the support frame of the outer shell assembly is provided with a luniform groove which is convenient for rotating the support frame; the utility model is provided with a zero adjusting point which has null function and convenient operation. The utility model has the advantages of simple manufacture technology, compact structure, firm magnet installation, high reliability, good linearity, rotation frequency response of 100Hz, high sensitivity, small noise, long service life, low cost, easy application, etc.
Description
The utility model belongs to the electronic sensor technical field, particularly a kind of magnetosensitive angular transducer, and non electrical quantities such as it is used to take measurement of an angle, position and displacement, and be converted to electric signal output.
At present, the magnetosensitive angular transducer of the medical electrocardiograph of prior art mainly contains japanese product CP-2U type and LPO5D3H1A type sensor.This product exists that manufacture craft is very complicated, the mechanical component difficulty of processing is big and problem such as cost costliness.In order to overcome the deficiencies in the prior art part, a kind of manufacture craft is succinct for developing out, mechanical component are processed more convenient and lower-cost magnetosensitive angular transducer, are very necessary.
The purpose of this utility model: in order to overcome the deficiencies in the prior art part, and be to provide a kind of magnetosensitive angular transducer.It mainly is made of institutes such as axle magnetic assembly, chip, compensating circuit and shells.Have that manufacture craft is succinct, sound construction is good, reliability is high, the nulling function arranged, the linearity is good, highly sensitive, temperature coefficient is little, the scope of application is wide, the life-span is long, cost is lower and be easy to characteristics such as production enforcement.
In order to realize this purpose, invention scheme of the present utility model is: it is a principle of work of utilizing the hall effect devices of magnetoresistance.In Figure of description, Fig. 1 provides the structural representation of this magnetosensitive angular transducer.It mainly is made of axle magnetic assembly, chip (8), compensating circuit (11) (as shown in Figure 3) and 4 parts of casing assembly.Wherein: axle magnetic assembly is that magnetic receiver (6) and the magnet (7) by axle (1), 2 D1000083 bearings (2), axle bed (3), collar and packing ring (4), M1.4 screw (5), L type structure is constituted.Chip (8) be by adopt magnetic-sensitive material semiconductor monocrystal indium antimonide (Insb) or adopt ferromagnetism such as (Ni-Fe) magnetosensitive membraneous material, substrate, cover plate and iron prop (9) etc. formation.Compensating circuit (11) as shown in Figure 3.Casing assembly is made of shell (13), 2 M2 long spiro nails (14), bakelite support (15), 2 dormant screws (16) and ground wire (17) etc.With above-mentioned 4 part assemblies that assemble, carry out general assembly (GA) according to Fig. 1 then, promptly constitute this magnetosensitive angular transducer.About specific structural features and the embodiment of Fig. 1, Fig. 2 and Fig. 3, in the Figure of description explanation, be illustrated.
Advantage of the present utility model:
This magnetosensitive angular transducer is a principle of work of utilizing the hall effect devices of magnetoresistance, it is to assemble earlier a magnetic assembly, chip (8), compensating circuit (11) (as shown in Figure 3) and 4 parts of casing assembly respectively according to Fig. 1, Fig. 2 and Fig. 3, carry out general assembly (GA) according to Fig. 1 then, promptly constitute this magnetosensitive angular transducer.Its axis (1) is to connect with the magnetic receiver (6) of L type structure by M1.4 screw (5), make axle (1) to displacement and radial displacement all less than 0.01mm, the magnetic receiver of L type (6) is to adopt No. 3 gluing connecing to be fixed on the magnet (7), and the long spiro nail (14) by 2 M2 makes bakelite support (15) and axle bed (3) fixing, a moon shape groove is arranged on support (15), so that swinging mounting (15) zeroising, made it nulling function (being the unification of electricity zero point and mechanical zero), when the nib of cardiogram machine is inserted pilot hole (1-1) (being mechanical zero), and perpendicular to by dress hole 2 * M3 screw when (3-1), its electricity is output as zero, when the debugging electrocardiograph, need not zeroising, it is extremely convenient to use.Its manufacture craft is very succinct, compact conformation, and magnet (7) is good by the dress fastness, reduces the difficulty of mechanical component processing, and cost of manufacture is reduced.Be manufactured with on the magnetic-sensitive material of chip (8) thousands of wide for the 15-20 micron, length is 0.15 millimeter indium short-circuiting bar, it is made of distinctive new technology chemical plating method, with the linearity and the sensitivity of raising chip (8).Chip (8) is to be fixed on the iron prop (9) with No. 3 gluing connecing, and the spacing of chip (8) and magnet (9) is to be controlled between the 0.1-0.2mm, guarantees consistance and good to the center, makes this properties of product high conformity.Therefore, it have that manufacture craft is succinct, compact conformation, mechanical component processing is more convenient, magnet is good by the dress fastness, reliability is high, the nulling function is arranged, resolution height, the little 0.5gcm of rotating torque, linearity height, rotate frequency response can reach 100Hz with highly sensitive, temperature coefficient is little, noise is little, the life-span is long, cost is lower and be easy to characteristics such as production enforcement.
This magnetosensitive angular transducer is applicable in the instrument of automatic control such as the electrocardiograph of singly leading or leading more both domestic and external, levelling instrument and inclinator.Important technological parameters has: A, operation DC voltage Uin=5 volt; B, input resistance 〉=3K Ω ± 20%, output resistance＜16K Ω; C, sensitivity S=2.2-3%Uin/10 °; D, linearity L≤1%FS; E, 90 °, 45 °, 30 ° angles of operating angle; F, zero point temperature float≤0.05%/℃; G, temperature coefficient≤0.03%/℃; H, working temperature 0-50 ℃; J, electricity zero point and mechanical zero error≤5mv; K, moment 0.5gcm and rotation frequency response 100HZ.
Below in conjunction with Figure of description, specific structural features of the present utility model and embodiment are described further.
Fig. 1 provides the structural representation of this magnetosensitive angular transducer, and Fig. 2 provides the vertical view of Fig. 1 and the fundamental diagram that Fig. 3 provides compensating circuit (11).
Fig. 1 mainly is made of axle magnetic assembly, chip (8), compensating circuit (11) and 4 parts of casing assembly.It is to assemble above-mentioned 4 parts respectively earlier according to Fig. 1, Fig. 2 and Fig. 3, carries out general assembly (GA) according to Fig. 1 then, promptly constitutes the magnetosensitive angular transducer.Assemble 4 parts earlier: (one), an axle magnetic assembly are to be connected with axle bed (3) by 2 D1000083 axles zero (2) by axle (1), fixing with collar and packing ring (4), and connect with the magnetic receiver (6) of L type structure by M1.4 screw (5), make axle axial displacement of (1) and radial displacement all less than 0.01mm, the magnetic receiver of L type (6) is to adopt No. 3 gluing connecing to be fixed on the magnet (7), magnet (7) is to adopt the samarium-cobalt alloy material, promptly assembles a magnetic assembly.(2), chip (8) be adopt magnetic-sensitive material semiconductor monocrystal indium antimonide (Insb) or adopt ferromagnetism such as (Ni-Fe) magnetosensitive membraneous material, substrate, cover plate and iron prop (9) etc. formation, seal with glue all around.Be manufactured with on the magnetic-sensitive material of chip (8) thousands of wide for the 15-20 micron, length is 0.15 millimeter indium short-circuiting bar, it is to adopt distinctive new technology chemistry electric degree method to make, and electroplating solution is made up of the deionized water of indium sulfate (4-6g), sodium sulphate (0.7-1.2g) and about 130 milliliters.Use No. 3 glue that chip (8) is adhesively fixed on the iron prop (9) at last, and around it, weld fixing with weld tabs (10).(3), compensating circuit (11) as shown in Figure 3, it is by magnetosensitive sheet resistance MR
1, MR
2Metal thin film resistor R
1, R
2, R
3, the outer lead (12) of the thermistor RT of negative temperature coefficient and 3 different colours (I redness, II are that blue look, III are black respectively) etc. is constituted.Wherein: MR
1+ MR
2〉=3K Ω, (MR
1-MR
2)/MR
1≤ 2%, R
1Or R
2=30-150K Ω, R
3=1-30K Ω, RT=3-30K Ω.(4), casing assembly is made of shell (13), 2 M2 long spiro nails (14), bakelite support (15), 2 dormant screws (16) and ground wire (17) etc.Carry out general assembly (GA) then: earlier compensating circuit (11) is installed on 5 welding holes on the bakelite support (15), the center pit of support (15) is the iron prop (9) by dress microarray strip (8), the spacing of chip (8) and magnet (7) is controlled between the 0.1-0.2mm, guarantee consistance and good, make this properties of product high conformity the center.At last that the axle bed (3) in the axle magnetic assembly is fixing by 2 long spiro nails (14) and bakelite support (15), on support (15), be provided with a moon shape groove, so that swinging mounting (15) zeroising has made it the nulling function.Promptly assemble this magnetosensitive angular transducer.Wherein the diameter of shell (13) is 23mm, and length is less than 28mm.On hole (1-1) that diameter 4.4mm is arranged on the axle (1) and axle bed (3), there is the screw (3-1) of 2 M3 to be by the dress hole.Magnetic receiver (6) and magnet (7) all adopt the samarium-cobalt alloy magnetic material, and No. 3 glue are commercial prod.
Promptly constitute the utility model according to above-mentioned making---a kind of magnetosensitive angular transducer.
Claims (4)
1. magnetosensitive angular transducer, mainly constituted by axle magnetic assembly, chip (8), compensating circuit (11) and casing assembly, it is characterized in that a magnetic assembly is made of the magnetic receiver (6) and the magnet (7) of axle (1), 2 D1000083 axles, zero (2), axle bed (3), collar and packing ring (4), M1.4 screw (5), L type structure, the magnetic receiver (6) of L type structure is that No. 3 gluing connecing of employing are fixed on the magnet (7).
2. sensor according to claim 1, it is characterized in that chip (8) is employing magnetic-sensitive material semiconductor monocrystal indium antimonide (Insb) or employing ferromagnetism (Ni-Fe) magnetosensitive membraneous material, substrate, cover plate, iron prop (9) and constitutes with the glue sealing all around, be manufactured with on the magnetic-sensitive material of chip (8) thousands of wide for the 15-20 micron, length is 0.15 millimeter indium short-circuiting bar.
3. according to the described sensor of claim 1.2, the spacing that it is characterized in that chip (8) and magnet (7) is between 0.1-0.2mm.
4. sensor according to claim 1, it is characterized in that casing assembly is made of shell (13), 2 M2 long spiro nails (14), bakelite support (15), 2 dormant screws (16) and ground wire (17), on bakelite support (15), be provided with a moon shape groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200068 CN2220629Y (en) | 1995-01-11 | 1995-01-11 | Magnetic sensitive angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200068 CN2220629Y (en) | 1995-01-11 | 1995-01-11 | Magnetic sensitive angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220629Y true CN2220629Y (en) | 1996-02-21 |
Family
ID=33853922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200068 Expired - Fee Related CN2220629Y (en) | 1995-01-11 | 1995-01-11 | Magnetic sensitive angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220629Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324302C (en) * | 2002-09-18 | 2007-07-04 | Zf雷姆伏尔德金属制品股份公司 | Rotational and/or tilting angle recording device for ball-pit joint |
| CN103090781A (en) * | 2013-01-11 | 2013-05-08 | 合肥高创传感器有限公司 | Magnetic-sensing sensor applied to lifting jack |
-
1995
- 1995-01-11 CN CN 95200068 patent/CN2220629Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324302C (en) * | 2002-09-18 | 2007-07-04 | Zf雷姆伏尔德金属制品股份公司 | Rotational and/or tilting angle recording device for ball-pit joint |
| CN103090781A (en) * | 2013-01-11 | 2013-05-08 | 合肥高创传感器有限公司 | Magnetic-sensing sensor applied to lifting jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |