CN101819021B - Angle direct detection sensor with high level of protection - Google Patents
Angle direct detection sensor with high level of protection Download PDFInfo
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- CN101819021B CN101819021B CN2010101590296A CN201010159029A CN101819021B CN 101819021 B CN101819021 B CN 101819021B CN 2010101590296 A CN2010101590296 A CN 2010101590296A CN 201010159029 A CN201010159029 A CN 201010159029A CN 101819021 B CN101819021 B CN 101819021B
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000012360 testing method Methods 0.000 claims description 30
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- 239000007788 liquid Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 18
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- 239000002360 explosive Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- -1 aluminium copper magnesium Chemical compound 0.000 description 1
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Abstract
The invention aims at providing an angle direct detection sensor with high level of protection, which comprises a magnetic frame device, a seal casing, a seal ring, a detection circuit rack, a cable splice and a circuit board, wherein the circuit board is fixed on the detection circuit rack, the seal casing is connected with the detection circuit rack, the seal ring is installed between the seal casing and the detection circuit rack, the magnetic frame device is installed on the seal casing, and the cable splice is installed on the detection circuit rack. The sensor with high level of protection and high detection precision can not only be used for special environments, such as high dust environment, high brightness environment, high pollution environment, interior of liquid container and interior of stirred tank reactor, but also be used for high pressure environment.
Description
Technical field
What the present invention relates to is a kind of sensor, specifically can be applied to the sensor of special rugged surroundings.
Background technology
The sensor that detects corner is called scrambler again, as photoelectric encoder, its ultimate principle is engraving grid hole on opaque thin rounded flakes, and the infrared tube sensor is installed in grating disk both sides, with irradiate light on the grating disk, because the existence in grid hole, rotation along with the grating disk, infrared tube will produce pulse one by one, by reading pulse number, can write down the angle that the grating disk is rotated.The photoelectric encoder principle is simple, and along with the raising of grating chi manufacturing technology, its volume and price are quite reasonable, so such sensor kind is a lot, use very extensive.But photoelectric encoder has individual defective, exactly sensor working environment of living in is had higher requirements, owing to must guarantee the reliable transmission of light, the housing that it generally all has sealing prevents entering of dust, guarantees that simultaneously the extraneous light around the detecting element disturbs very low, simultaneously owing to must not isolate between infrared tube and the grating chi, so general infrared tube and testing circuit all directly contact with outside air, watertightness is relatively poor, can not be used in special occasions.
At special occasions, for example in the reactor, in the high dust atmosphere, liquid container etc., the rotating shaft angular detection of equipment such as the cradle head of these occasions just needs to adopt non-optical property, the method for non-direct contact type.Say that as papers that the people shows such as Gong Zhenghua " based on the hydrodynamic apparatus hydrofoil control system of angular transducer " the inside the method for carrying out angular detection under water that is applied in that provides is exactly to utilize small-sized permanent magnet clutch that the rotating shaft angle of required detection is delivered in the underwater sealing cabin by magnetic-coupled method, the magnetic coupling internal rotor links to each other with a pot in pressurized capsule, utilize magnetic-coupled mode with indirect being delivered on the detecting element of corner information, this detection method is because the existence at the sluggish angle of magnetic coupling, requirement is not very high occasion to the angle real-time follow-up so can be used in, and accuracy of detection also is subjected to the influence of magnetic coupling effect.
Be 200680024211.2 magnetic encoders also just like the patent No. by Nidec Sankyo Corp's application, its ultimate principle is consistent with photoelectric encoder, magnetic material is pressed N, S polarity sintering on a circular discs, utilize Hall element to detect the variation in N, S magnetic field, write down rotational angle, but the sensor test precision depends on the precision that N, the S utmost point are fired respectively, so general precision is lower.
Summary of the invention
The object of the present invention is to provide a kind of angle direct detection sensor that can be used for high dust atmosphere, high brightness, high pollution environment, liquid container inside, stirred autoclave inside with high-protection level.
The object of the present invention is achieved like this:
The present invention has the angle direct detection sensor of high-protection level, it is characterized in that: comprise magnet frame device, capsul, O-ring seal, testing circuit frame, cable splice and circuit board, circuit board is fixed on the testing circuit frame, capsul links to each other with the testing circuit frame, O-ring seal is installed in the middle of capsul and the testing circuit frame, the magnet frame device is installed on the capsul, and cable splice is installed on the testing circuit frame.
Angle direct detection sensor with high-protection level of the present invention can also comprise:
1, described testing circuit frame comprises circuit board support, support column, circuit board and sheath, and support column is fixed on the upper surface of circuit board support, and circuit board is installed on the circuit board support by support column, and sheath is enclosed within on the circuit board.
2, described circuit board comprises chip, circuit substrate and signal Processing components and parts, and chip is installed in the upper surface of circuit substrate, and the signal Processing components and parts are installed in the lower surface of circuit substrate.
3, described magnet frame device comprises magnet, magnet frame and rotating shaft retaining element, the place ahead and the side of magnet frame have the hole, magnet is installed in the magnet frame by the hole in magnet frame the place ahead, and the rotating shaft retaining element is installed in the magnet frame by the hole of magnet frame side.
4, described rotating shaft retaining element is holding screw or straight pin.
Advantage of the present invention is: the present invention has high-protection level, high measurement accuracy, can be used for special occasions, comprise high dust atmosphere, high brightness, high pollution environment, liquid container inside, stirred autoclave inside, also can be used for carrying out under the hyperbaric environment high precision angular detection.
Description of drawings
Fig. 1 is a detection of the present invention magnet frame synoptic diagram;
Fig. 2 is that magnet frame of the present invention and rotating shaft installation concern synoptic diagram;
Fig. 3 is a detection chip circuit board synoptic diagram of the present invention;
Fig. 4 is a testing circuit plate fixed form synoptic diagram of the present invention;
Fig. 5 is individual packages sensor explosive effect figure of the present invention;
Fig. 6 is that individual packages sensor installation of the present invention concerns synoptic diagram;
Fig. 7 is magnet frame of the present invention and seal casinghousing fixed form synoptic diagram;
Fig. 8 is that test section of the present invention is used for the integrated scheme of installation on the internal pressure vessel;
Fig. 9 be test section of the present invention and head tank when carrying out integrated installation each parts install and concern synoptic diagram;
Figure 10 is the integrated scheme of installation of test section of the present invention on for vessels under external pressure.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～10, the present invention includes magnet frame device, capsul, O-ring seal, testing circuit frame, screw, cable splice and circuit board, circuit board is fixed on the testing circuit frame, capsul is connected by screw with the testing circuit frame, O-ring seal is installed in the middle of capsul and the testing circuit frame, the magnet frame device is installed on the capsul, and cable splice is installed on the testing circuit frame.
Figure 1 shows that detection of the present invention magnet frame synoptic diagram, magnet frame device 5 is mainly formed with magnet 1, magnet frame 2, rotating shaft retaining element 3 by detecting.Wherein the material of magnet 1, size need meet the requirement of selected Hall scrambler detection chip, still the AM8192B1 chip with Reinshaw (RENISHAW) company is an example, its required magnet requires to cylindrical, and diameter is 4 millimeters, and height is 4 millimeters, material is Sm2Co17, material remanent magnetism is 1.05 teslas, temperature coefficient is-0.03%/℃, 720 ℃ of Curie temperature, magnetic field is circular surfaces N, S magnetization, and the magnetization homogeneity is high more more little to the measuring accuracy influence.For improving the serviceable life of magnet 1, can be at the corrosion-resistant protective layer of its surperficial coating.Magnet frame 2 is used for fixing magnet 1 and turning axle 4, fixed form as shown in Figure 2, so fixing back magnet 1 can be followed turning axle 4 and be rotated synchronously, because detection chip has certain requirement to the rotation right alignment of magnet 1, so magnet frame 2 needs higher processing precision, its material can be according to concrete environment for use, fabrication process conditions etc. are selected nonferromugnetic material, in order to guarantee the rotation lubricity after final the installation, can select self-lubricating abrasion-resistant materials such as teflon, and for perishable occasions such as chemical industry, then can select for use stupaliths such as silit to carry out sintering, to improve the life-span of himself.As shown in Figure 2, rotating shaft retaining element 3 is to be used for fixing magnet frame 2 and turning axle 4, and it can be a holding screw according to arts demand, also can be straight pin etc., mainly realizes the firm fixation of magnet frame 2 and turning axle 4.This fixed form can make detection magnet 1 follow turning axle 4 reliably and rotate, the precision that takes measurement of an angle is better, but the installation accuracy to the later stage is had relatively high expectations, if it is less demanding to measuring accuracy, for reducing the later stage installation accuracy, also can utilize auxiliary components such as star coupling or spring coupling to connect between magnet frame 2 and turning axle 4, at this moment the pit that designs for installation turning axle 4 input ends on the magnet frame 2 can be processed into the boss that auxiliary coupler component part is installed accordingly.
Fig. 3, Fig. 4, Fig. 5, Fig. 6 are the each several part composition diagram of the angular transducer of individual packages form provided by the present invention, whole explosive view and installation site graph of a relation.
Fig. 3 is the used detection chip circuit board 9 of the present invention, and this circuit board 9 mainly is made up of 3 big parts, is respectively detection chip 6, circuit board 7, signal Processing components and parts 8.Detection chip 6 is selected Hall angular encoder detection chip (Angular magnetic encoder IC) for use, and it mainly is responsible for detecting the angle information that magnet 1 passes over, and this information is resolved in a predetermined manner transmitted then; Circuit board 7 mainly provides corresponding wiring, cabling for the PCB circuit board, and the pad of each electronic devices and components, allows electronic component form the complete circuit that can realize predetermined function by firm fixed thereon of form of welding; Signal Processing components and parts 8 are made up of multiple different electronic devices and components, realization is separated the information of detection chip 6 output and is counted as the stronger numeral of antijamming capability or simulating signal and exports, for example detected angle information can be compiled into the RS-232 communications protocol, export, improve the transmission stability of signal.
Fig. 4 is a second portion of the present invention, and testing circuit frame 14 main applications are with circuit board shown in Figure 39 firm being fixed up, and can satisfy stable, accurate Testing requirement to guarantee the relative installation accuracy between magnet 1 and the detection chip 6.Have various circular hole or threaded hole above the circuit board support 10, be used to install and fix.Circuit board 9 is fixed on the circuit board support 10 by support column 11 and screw 12; Support column 11 plays a part circuit board 9 location is propped, and is that insulating protection considers that support column 11 should be selected insulating material as far as possible, as nylon etc.; Screw 12 then plays fixation, and for guaranteeing the safe fixing of circuit board 9, the quantity of screw 12 should be no less than 2.Sheath 13 is made with insulating material; be used to protect chip 6 and circuit board 7 surfaces can directly not contact with metal material; thereby meet accident; produce damage; can play simultaneously the gap of adjusting detection chip 6 and seal casinghousing; sheath 13 is an auxiliary component, lays thereon after circuit board 9 is fixed to get final product, and also can carry out simply fixing.
Fig. 5 is the explosive view of individual packages angular transducer provided by the present invention, and Fig. 6 is each parts scheme of installation of individual packages angular transducer provided by the present invention.Wherein have flange face and some apertures on the capsul 16, be used for fixing whole sensor and sealing entire circuit plate bin.Screw 15 is and is used for capsul 16 and testing circuit frame 14 are joined together to form seal hatch, can install O-ring seal 17 additional between capsul 16 and testing circuit frame 14, to improve the voltage endurance capability of whole seal hatch.Output cable joint 18 is also replaceable to be signal cable, it mainly acts on is the interface that signal output is provided a unification, standard for sensor, according to the protection needs, this part can be selected the common cable joint, and under water or under the hyperbaric environment, then need to change into corresponding watertight cable head or withstand voltage cable end.
As shown in Figure 6, according to the different requirements of detection chip 6, magnet frame device 5 should meet the requirements with the installation right alignment and the gap of testing circuit frame 14.Wherein capsul 16 has played the effect with magnet 1 and detection chip 6 isolation, so it should adopt nonferromugnetic material to process.Actual requirement according to detection chip 6, the shrinkage pool diameter D of capsul 16, can specifically adjust with wall thickness d, through well-designed, make D and d get a rational numerical, can improve the compressive resistance of whole sensor, be example with the AM8192B1 chip still, its d maximum can reach 0.5 millimeter, if D is designed to 10 millimeters, capsul 16 aluminium copper magnesium alloy 2A12, then the theoretical compressive resistance of this sensor can reach 35Mpa, can be competent at the measurement of angle of all kinds of high-pressure reaction vessels inside fully, and after the preservative treatment of material process, can be used for more in the rugged environment, as the deep ocean work instrument, ROV equipment is first-class under water.
For installation accuracy and the relative wheel measuring angle of further raising magnet 1, provided overall package version as shown in Figure 7 with capsul 16 and detection chip 6.Magnet frame 2 by about two bearings 22 clamp, bearing one side is a back-up ring 23, and it is with side bearing 22 combination, is used for adjusting the gap between magnet 1 and the capsul 16, guarantee the gap evenly with stablize; Opposite side is a cover plate 20, and it is fixed on the capsul 16 by screw 21, utilizes its inboard boss that bearing 22 and magnet frame 2 are stepped up the fixed position.Still have input shaft bore on the magnet frame 2, cooperate holding screw 3 to fix input shaft.This place, in the life-span of be improving bearing 22, it can make the sliding bearing of material such as silit into.So design, it is stable to guarantee that gap between magnet 1 and detection chip 6 and the capsul 16 evenly has, and makes the precision of each measurement more secure.And, improve the voltage endurance capability of seal casinghousing simultaneously in order to improve the inplace stability of this each components and parts of individual packages sensor internal, portion carries out the encapsulating processing within it, and all parts are cured.
Figure 8 shows that sensor detecting device of the present invention and other equipment carry out integrated installation, be used in the situation on the internal pressure vessel, as apply to occasions such as stirred tank, retort that wherein sealed shell of tank 25 is a container; Figure 10 shows that sensor detecting device of the present invention and other equipment carry out integrated installation, be used in the situation on the external pressure vessel, as apply to fields such as underwater robot, petroleum gas developing; Figure 9 shows that the installation of each parts concerned synoptic diagram when sensor detecting device of the present invention and head tank carried out integrated installation.It installs specific implementation method relatively, and the hole of spudding on sealed shell of tank 25 is fixing with sealed shell of tank 25 by O-ring seal 17 and attachment screw 26 with gland bonnet 24.Gland bonnet 24 is manufactured with corresponding mounting hole with reference to capsul 16, be fixed on the gland bonnet 24 at the testing circuit frame 14 usefulness screws 15 of dry stable environment one side testing circuit plate 9, in needs detect the complex environment of turning axle 4, press Fig. 2 or connected mode shown in Figure 7 will detect with magnet 1 fixing reliably on, and form the assembly relation that coincidence measurements require with the detection chip 6 of gland bonnet opposite side.
Claims (4)
1. the angle direct detection sensor that has high-protection level, it is characterized in that: comprise the magnet frame device, capsul, O-ring seal, the testing circuit frame, cable splice and circuit board, circuit board is fixed on the testing circuit frame, capsul links to each other with the testing circuit frame, O-ring seal is installed in the middle of capsul and the testing circuit frame, the magnet frame device is installed on the capsul, cable splice is installed on the testing circuit frame, described testing circuit frame comprises circuit board support, support column and sheath, support column is fixed on the upper surface of circuit board support, circuit board is installed on the circuit board support by support column, and sheath is enclosed within on the circuit board.
2. the angle direct detection sensor with high-protection level according to claim 1, it is characterized in that: described circuit board comprises chip, circuit substrate and signal Processing components and parts, chip is installed in the upper surface of circuit substrate, and the signal Processing components and parts are installed in the lower surface of circuit substrate.
3. the angle direct detection sensor with high-protection level according to claim 1 and 2, it is characterized in that: described magnet frame device comprises magnet, magnet frame and rotating shaft retaining element, the place ahead and the side of magnet frame have the hole, magnet is installed in the magnet frame by the hole in magnet frame the place ahead, and the rotating shaft retaining element is installed in the magnet frame by the hole of magnet frame side.
4. the angle direct detection sensor with high-protection level according to claim 3 is characterized in that: described rotating shaft retaining element is holding screw or straight pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101590296A CN101819021B (en) | 2010-04-29 | 2010-04-29 | Angle direct detection sensor with high level of protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101590296A CN101819021B (en) | 2010-04-29 | 2010-04-29 | Angle direct detection sensor with high level of protection |
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| Publication Number | Publication Date |
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| CN101819021A CN101819021A (en) | 2010-09-01 |
| CN101819021B true CN101819021B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101590296A Expired - Fee Related CN101819021B (en) | 2010-04-29 | 2010-04-29 | Angle direct detection sensor with high level of protection |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564293A (en) * | 2010-12-31 | 2012-07-11 | 上海派芬自动控制技术有限公司 | Non-contact angle sensor |
| DE102014208763A1 (en) * | 2014-05-09 | 2015-11-12 | Robert Bosch Gmbh | Magnet for rotation angle sensor |
| CN108180822B (en) * | 2017-12-18 | 2023-08-29 | 西安航天动力测控技术研究所 | Complete sealing angle detection device |
| CN109164833B (en) * | 2018-08-14 | 2023-03-24 | 北京和光飞翼机电科技有限公司 | Angle control system capable of carrying out automatic adjustment and control method thereof |
| DE102019106288B3 (en) * | 2019-03-12 | 2020-03-05 | Sick Stegmann Gmbh | Encoder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06148210A (en) * | 1992-11-05 | 1994-05-27 | Sumitomo Electric Ind Ltd | Rotation detector |
| JPH0849575A (en) * | 1994-08-08 | 1996-02-20 | Nippondenso Co Ltd | Operational quantity detection device for acceleration pedal |
| JPH11153404A (en) * | 1997-11-21 | 1999-06-08 | Teikoku Tsushin Kogyo Co Ltd | Rotation angle sensor |
| CN201311272Y (en) * | 2008-12-15 | 2009-09-16 | 银川英奥特自控有限公司 | Non-contact high-precision angle sensor |
| CN201407990Y (en) * | 2009-04-02 | 2010-02-17 | 郑州市科德自动化系统工程有限公司 | Deep water angle detecting sensor |
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2010
- 2010-04-29 CN CN2010101590296A patent/CN101819021B/en not_active Expired - Fee Related
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Effective date of registration: 20180302 Address after: No. 1, No. 5, D, No. 258, Nantong street, Nangang District, Harbin, Heilongjiang Province, No. 5 Patentee after: Harbin gorgeous marine science and Technology Co.,Ltd. Address before: 150001 Heilongjiang, Nangang District, Nantong street,, Harbin Engineering University, Department of Intellectual Property Office Patentee before: HARBIN ENGINEERING University |
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Effective date of registration: 20190531 Address after: 150001 No. 1, 1 D, cultural home, 258 Nantong street, Nangang District, Harbin, Heilongjiang. Patentee after: Harbin gorgeous marine science and Technology Co.,Ltd. Address before: 215332 B12 15, Jin Yang Road, Huaqiao Town, Kunshan City, Suzhou, Jiangsu, 1-2 Patentee before: Kunshan bright Intelligent Technology Co.,Ltd. |
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