CN206387375U - A kind of four redundant displacement sensors - Google Patents
A kind of four redundant displacement sensors Download PDFInfo
- Publication number
- CN206387375U CN206387375U CN201621436630.4U CN201621436630U CN206387375U CN 206387375 U CN206387375 U CN 206387375U CN 201621436630 U CN201621436630 U CN 201621436630U CN 206387375 U CN206387375 U CN 206387375U
- Authority
- CN
- China
- Prior art keywords
- push rod
- redundant
- housing
- iron core
- core assembly
- 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.)
- Active
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a kind of four redundant displacements sensor, drive end bearing bracket (5), rear end cap (6) and housing (7), drive end bearing bracket (5) is respectively arranged in housing (7) both sides with rear end cap (6), it is characterised in that：Including push rod (1), 4 identical redundant channels are set in housing (7), each redundant channel includes 1 core assembly, 1 coil block (4), the core assembly includes pull bar (2) and iron core (3), coil block (4) constitutes closed magnetic circuit with iron core (3), wherein, push rod (1) is displacement inputting apparatus, and one end is connected with external motive device；Four pull bars (2) are threadedly secured on the screwed hole of the other end of push rod (1), so that iron core (3) obtains identical displacement input quantity, the interstitial site between four pull bars (2) screwed hole bottom and the push rod (1) top is provided with the pad (8) for being used for adjusting core assembly installation site.
Description
Technical field
The utility model belongs to displacement transducer technology field, particularly belongs to a kind of many redundant displacement sensors.
Background technology
Tested physics displacement, is converted to line by the displacement transducer being operated using electromagnetic induction principle by mutual inductance
The induced voltage of circle, so as to realize displacement measurement.Its basic mode is to use screwed pipe shape differential transformer type, and operation principle is as schemed
Shown in 1：Sensor needs an AC power there is provided to primary coil, produces an alternating magnetic field, includes the compensating line of step
Two secondary coils of circle press potential differential concatenation, when iron core is in the centre position of two secondary coils, the production of two secondary coils
Raw induced potential is equal in magnitude, in the opposite direction, output voltage USC=0, when iron core deviate centre position when, two secondary coils it
Between mutual inductance change, both induced potentials are no longer equal, there is USCOutput, the transformed device of the signal is transformed into be moved with iron core
The consistent DC voltage of the size and Orientation of momentum, that is, reach that the displacement of iron core is converted into the purpose of voltage signal output.This
Application of kind induction displacement transducer in displacement measurement has had the history of decades, with its particular advantages, extensively
It is general to be applied to Engine digital control system and the displacement measurement and feedback of other similar control systems.
As shown in figure 1, induction displacement transducer is widely used in Engine digital control system and other similar controls
System processed, for displacement measurement and feedback, its reliability directly affects the performance and reliability of servo-drive system.As aviation works
Development, product reliability requires more and more higher, to meet Engine digital control system of new generation and other similar control systems
The requirement of high reliability and security, need to carry out the research and experiment of redundancy new technology and structural reliability.
The content of the invention
The purpose of this utility model is：A kind of four redundant displacements sensor is provided, so as to improve digital control system position in aircraft
The reliability of sensing device is moved, and it is compatible with other four redundance units.
The technical solution of the utility model is：The utility model provides a kind of four redundant displacements sensor, drive end bearing bracket
(5), rear end cap (6) and housing (7), drive end bearing bracket (5) are respectively arranged in housing (7) both sides with rear end cap (6), it is characterised in that：
Including push rod (1), 4 identical redundant channels are set, each redundant channel includes 1 core assembly, 1 in housing (7)
Individual coil block (4), the core assembly includes pull bar (2) and iron core (3), and coil block (4) constitutes closed magnetic with iron core (3)
Road, wherein, push rod (1) is displacement inputting apparatus, and one end is connected with external motive device；Four pull bars (2) pass through screw thread
On the screwed hole for being fixed on the other end of push rod (1) so that iron core (3) obtains identical displacement input quantity, in described four drawings
Interstitial site between at the top of bar (2) screwed hole bottom and the push rod (1), which is provided with, to be used to adjust core assembly installation site
Pad (8).
Further：
Four through holes are provided with the middle of housing (7)；Coil block (4) and the iron core group described in one group are placed in each through hole
Part.
This practical advantage is：
(1) technology of four Redundancy Design in parallel is employed, overcomes that reliability is not high and zero-bit regulation problem, the product knot
Structure is compact, reliability is high；Using change different-thickness pad (8) can ensure each redundant channel electrical null position it is consistent
Property.
(2) displacement transducer is in the case where structure space and working environment limitation are very strict, realize structure it is in parallel,
Function four tunnel redundancy linear movement measurings in parallel, are significantly reduced and were once being lost using the displacement transducer winding of electromagnetic induction principle
The density of infection of failure is imitated, the functional reliability of system is effectively increased, with important application value and wide promotion prospect.
Brief description of the drawings
Fig. 1 is the displacement transducer principle schematic of electromagnetic induction principle.
Fig. 2 is a kind of structural representation of four redundant displacements sensor.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of four redundant displacements sensor, drive end bearing bracket 5, rear end cap 6 and housing 7, drive end bearing bracket 5 and rear end cap
6 are respectively arranged in the both sides of housing 7, it is characterised in that：Including push rod 1,4 identical redundant channels, Mei Gesuo are set in housing 7
Stating redundant channel includes 1 core assembly, 1 coil block 4, and the core assembly includes pull bar 2 and iron core 3, coil block 4
Closed magnetic circuit is constituted with iron core 3, wherein, push rod 1 is displacement inputting apparatus, and one end is connected with external motive device；Described in four
Pull bar 2 is threadedly secured on the screwed hole of the other end of push rod 1 so that iron core 3 obtains identical displacement input quantity, in institute
Stating the interstitial site between four screwed hole bottoms of pull bar 2 and the top of the push rod 1 and being provided with is used to adjust core assembly installation position
The pad 8 put.
Four through holes are provided with the middle of housing 7；Coil block 4 described in one group and the core assembly are placed in each through hole.
Above-mentioned coil block 4 employs two-part structure, and cell winding canoe is using close row at the beginning of 3~4 layers
After level coil, whole winding portion sublevel arranges the compensation winding of secondary coil.
The utility model four redundant displacement sensors of one kind are by four physical dimensions, the identical coil of electric parameter
Component 4, is formed installed in an internal parallel of sensor housing 7.Four coil blocks 4 in parallel correspond to four active irons respectively
Core assembly, the physical dimension of four iron cores 8 of movable core component is also identical.The corresponding iron core 8 of four coil blocks 4
Constitute respective closed magnetic circuit.When the core assembly of sensor moves back and forth with test product, four sensings in parallel
Device coil block 4 is exported simultaneously, finally realizes the highly reliable displacement of the lines amount for the redundancy of compact four that structure is in parallel, function is in parallel
Measure function.
The regulation of four redundant displacement transducer zeroings mainly overlaps the zero-bit of four core assemblies, while ensureing sensor
With the installation zero-bit of complete machine.When four redundant displacement transducer zeroings are adjusted, fixed shell 7 and coil block 4, by changing iron core
The thickness of pad between component and push rod 1, adjusts the installation site of four core assemblies, overlaps its electrical null position.
Embodiment of the present utility model is explained in detail above, above-mentioned embodiment is only of the present utility model optimal
Embodiment, but the utility model is not limited to above-described embodiment, the knowledge possessed in those of ordinary skill in the art
It is interior, it can also be made a variety of changes on the premise of the utility model objective is not departed from.
Claims (2)
1. a kind of four redundant displacements sensor, drive end bearing bracket (5), rear end cap (6) and housing (7), drive end bearing bracket (5) and rear end cap (6)
It is respectively arranged in housing (7) both sides, it is characterised in that：Including push rod (1), 4 identical redundant channels are set in housing (7),
Each redundant channel includes 1 core assembly, 1 coil block (4), and the core assembly includes pull bar (2) and iron core
(3), coil block (4) constitutes closed magnetic circuit with iron core (3), wherein, push rod (1) is displacement inputting apparatus, and one end is moved with outside
Power apparatus is connected；Four pull bars (2) are threadedly secured on the screwed hole of the other end of push rod (1) so that iron core (3)
Identical displacement input quantity is obtained, the gap digit between four pull bars (2) screwed hole bottom and the push rod (1) top
Install the pad (8) for adjusting core assembly installation site.
2. four redundant displacements sensor according to claim 1, it is characterised in that：Four through holes are provided with the middle of housing (7)；
Coil block (4) and the core assembly described in one group are placed in each through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436630.4U CN206387375U (en) | 2016-12-26 | 2016-12-26 | A kind of four redundant displacement sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436630.4U CN206387375U (en) | 2016-12-26 | 2016-12-26 | A kind of four redundant displacement sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387375U true CN206387375U (en) | 2017-08-08 |
Family
ID=59489847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621436630.4U Active CN206387375U (en) | 2016-12-26 | 2016-12-26 | A kind of four redundant displacement sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206387375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710218A (en) * | 2020-12-15 | 2021-04-27 | 北京特倍福电子技术有限公司 | Compact redundant built-in magnetostrictive displacement sensor |
-
2016
- 2016-12-26 CN CN201621436630.4U patent/CN206387375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710218A (en) * | 2020-12-15 | 2021-04-27 | 北京特倍福电子技术有限公司 | Compact redundant built-in magnetostrictive displacement sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pakdelian et al. | Magnetic design aspects of the trans-rotary magnetic gear | |
| CN104465044B (en) | Linear variable differential sensor and its winding method | |
| CN105485246B (en) | A kind of passive double-layered isolator of master based on piezoelectric pile | |
| CN206387375U (en) | A kind of four redundant displacement sensors | |
| CN202034920U (en) | Electromagnetic micro driver based on magnetic elastic materials | |
| CN103022340B (en) | Magnetic electric compound material structure of a kind of controlled multi-resonant frequency and preparation method thereof | |
| CN101660959B (en) | Super magnetostriction force sensor | |
| CN203747692U (en) | Precise adjustment control system for micro power | |
| CN204226322U (en) | A kind of electrohydraulic control | |
| CN206480481U (en) | A kind of high-precision low current transformer | |
| CN203130893U (en) | Combined actuator | |
| CN103856102A (en) | Micro-dynamic accurate regulation control system and method | |
| CN203552896U (en) | Linear variable differential transducer | |
| CN205423677U (en) | Main passive double -deck isolator based on piezoelectric stack | |
| CN202057292U (en) | Piezoelectric current sensor | |
| CN103647473A (en) | Design for giant magnetostrictive micro displacement driving system | |
| CN205120279U (en) | Premolding magnetic induced shrinkage or elongation force transducer | |
| CN203366982U (en) | Current transformer for high-voltage static reactive compensation device | |
| CN206387522U (en) | Automobile steering device capacitor torque sensor | |
| CN205754058U (en) | Ultra-magnetic deformation actuator with automatic thermal compensation function | |
| CN105811727B (en) | Vibration engine based on the quick elastomeric material of power | |
| CN105659804B (en) | A kind of novel four redundant displacement sensors | |
| CN202586514U (en) | EMSR electromagnetic energy transmitting and receiving system | |
| CN206077257U (en) | Differential-mode magnetic control shape memory alloy self-sensing actuator | |
| CN102679859B (en) | Displacement sensor and method for measuring displacement by using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |