CN105526927A - Geostrophic force effect based translational velocity or acceleration sensing device and structure - Google Patents
Geostrophic force effect based translational velocity or acceleration sensing device and structure Download PDFInfo
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- CN105526927A CN105526927A CN201610038565.8A CN201610038565A CN105526927A CN 105526927 A CN105526927 A CN 105526927A CN 201610038565 A CN201610038565 A CN 201610038565A CN 105526927 A CN105526927 A CN 105526927A
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- magnetic
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- magneto
- power electric
- force effect
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/14—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of gyroscopes
Abstract
The invention provides a geostrophic force effect based translational velocity or acceleration sensing device and structure, wherein a drive structure and an electromagnetic coil interact to drive a sensitive magnetic structure to rotate, when the sensing device has translational velocity meeting a condition of generating a geostrophic force effect, the sensitive magnetic structure generates deflection; a sensing mechanism converts the deflection displacement into an output electric signal. The invention innovatively applies a function sensitive material and a geostrophic effect to the translational velocity or acceleration detection, realizes a novel translation detection mechanism and method, and can be used for realizing a reciprocating translation detection means without detection stroke limitation.
Description
Technical field
The present invention relates to detecting sensor technical field, particularly, relate to a kind of translational velocity based on coriolis force effect or acceleration sensing device and unitized construction thereof.
Background technology
According to the theory of Newtonian mechanics, take rotating system as reference system, the rectilinear motion of particle departs from the effect that former directive tendency is summed up as a compelling force, and this power is Coriolis force, and is defined as:
in formula
for Coriolis force; M is point mass;
for particle movement speed;
for rotating system angular velocity.
The existing detecting sensor based on Coriolis force, such as publication number is 103913158A, publication date is on 07 09th, 2014, denomination of invention is the Chinese patent application of " magneto-electric Coriolis force detection sensor ", provide a kind of magneto-electric Coriolis force detection sensor, this Coriolis force detection sensor, is arranged at enclosure interior by mass, based on coriolis force effect, realize the detection of flat turn kinetoplast low speed or wideband rotating speed at a high speed.
But the detecting sensor that these patented claims propose, is all detect for rotation, does not detect translation, and the translation that function sensitive material and Coriolis effect to be used for of the present invention's innovation detects.
Summary of the invention
The present invention is directed to above shortcomings in prior art, provide a kind of translational velocity based on coriolis force effect or acceleration sensing device and unitized construction thereof.
According to a kind of translational velocity based on coriolis force effect provided by the invention or acceleration sensing device, comprise housing and be arranged at the drives structure of enclosure interior, responsive magnetic structure, syndeton, magnet shielding structure and sensing mechanism;
Drives structure is driven responsive magnetic structure by syndeton;
Magnet shielding structure carries out magnetic shielding between drives structure and responsive magnetic structure;
Described housing is as translation system;
Described drives structure produces the rotary motion of relative housing, and the angular velocity of described drives structure is ω;
By syndeton, responsive magnetic structure is synchronized with drives structure and rotates;
Under corioliseffect, the magnetoelectricity inverted signal that beat causes is there is in described sensing mechanism for gathering responsive magnetic structure.
Preferably, described responsive magnetic structure adopts any one structure following:
-be arranged at the inner and magnetic structure be connected as a single entity with rigid body of rigid body;
The magnetic structure of-monomer structure, adopts permanent magnet or electromagnet.
Preferably, with the speed v of described housing or acceleration a, and based on the moving displacement of time-parameters as the amount that will detect.
Preferably, described responsive magnetic structure adopts permanent magnet, and the pole orientation of permanent magnet is configured according to detection demand.
Preferably, described drives structure generation rotation or reciprocal rotation are moved;
Described drives structure adopts any one structure following:
-described drives structure adopts permanent magnet, drives permanent magnet or electromagnet by solenoid group;
-described drives structure adopts electromagnet, drives electromagnet or permanent magnet by set of permanent magnets;
-described drives structure adopts motor to export rotation;
-described drives structure adopts flat rotating mechanism and the transmission gear matched, driving rack or drive pulley, forms reciprocal rotation and moves;
Power acquisition battery needed for described drives structure, realizes measuring without cable translation of Long travel.
Preferably, described syndeton is the movement transfer member of drives structure and responsive magnetic structure, and syndeton will have certain flexibility, and described certain flexibility refers to and can produce beat elastic deformation under corioliseffect.
Preferably, the magnetic field of described magnet shielding structure shield guard part, to improve accuracy of detection.
Preferably, enclosure interior space is divided into the first container cavity and the second container cavity by magnet shielding structure, and described drives structure is positioned at the first container cavity, and described responsive magnetic structure is positioned at the second container cavity;
Be provided with the 3rd container cavity in the sidewall of responsive the second container cavity residing for magnetic structure, described sensing mechanism is arranged in described 3rd container cavity;
Described sensing mechanism adopts any one structure following:
-sensing mechanism comprises the magneto-strain body and power electric material that contact with each other, and described power electric material is positioned at upper end and/or the lower end of magneto-strain body;
-sensing mechanism comprises the special-shaped permanent-magnet structure body in the direction contacted with each other and power electric material, and the special-shaped permanent-magnet structure body in described direction adopts the special-shaped permanent magnetic monomers of the special-shaped permanent magnetic monomers in a direction or multiple direction contacted with each other; Described power electric material is positioned at upper end and/or the lower end of the special-shaped permanent-magnet structure body in direction;
-sensing mechanism comprises magneto-strain body and power electric material, and described power electric material is film or sheet body structure, and is arranged on the two sides of magneto-strain body, forms sandwich structure;
-sensing mechanism comprises magneto-strain body and power electric material;
Described magneto-strain body comprises: magnetostriction materials, magnetic particle pendular body, magnetic force moving body or giant magnetic resistance;
Described power electric material comprises: piezoelectric, pressure drag material, piezomagnetic material, carbon nano-tube or grapheme material.
Described power electric material can be the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, and be arranged at side or the end of magneto-strain body, cause carbon nano-tube or grapheme material correspondence to produce strain when forming magneto-strain body deformability;
-sensing mechanism adopts giant magnetic resistance body;
According to the novel mangneto response body of one provided by the invention and power electric material sensor device, comprise power electric material parts and magneto-strain body;
The power electric material that described power electric material parts adopt is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, and be arranged at side or the end of magneto-strain body, cause carbon nano-tube or grapheme material to produce the flexible strain of strain and realization, magnetic field intensity, the detection sensing device of strength of current or voltage strength or system when forming opposing perimeter magnetic field or the lower magneto-strain body deformability of electromagnetic field change.
Because the film of any one in carbon nano-tube, grapheme material or both combined elastic structured materials composition or lamellar body or block structure have high resistance-strain ratio, namely small strain can produce great resistance variations, and then the circuit that the film that is made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials or lamellar body or block structure body are formed has tetchy electrical quantity (change of voltage or electric current), thus correspondence realizes the ultraprecise strain sensing devices of atomic small strain.Therefore, described power electric material is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, the lateral surface of magneto-strain body or inner or end can be arranged at, formed relative magneto-strain body periphery magnetic field or electromagnetic field change lower cause magneto-strain body deformability time the corresponding carbon nano-tube that arranges or Graphene class power electric material produce and strain, cause and detect change in electric.Based on this, and the flexible strain realized or magnetic field intensity or current/voltage intensity detection sensing device or system.
According to the unitized construction of a kind of translational velocity based on coriolis force effect provided by the invention or acceleration sensing device, comprise multiple above-mentioned translational velocity based on coriolis force effect or acceleration sensing device, multiple described translational velocity based on coriolis force effect or acceleration sensing device are that array structure is connected.
Present invention also offers a kind of unitized construction of the sensing device based on coriolis force effect, comprising multiple above-mentioned translational velocity based on coriolis force effect or acceleration sensing device is that array structure is connected and rotates combinationally using of sensing device (such as publication number 103913158A) based on the translational velocity of coriolis force effect or acceleration sensing device with existing disclosed patent.
Principle of work of the present invention is: drives structure drives responsive magnetic structure to rotate or back and forth rotation is moved, and namely has the relative angle speed omega relative to housing; When the translational velocity (acceleration) of housing is orthogonal to this rotation, responsive magnetic structure will be subject to the effect of coriolis force, and then producing the beat motion being orthogonal to translation direction and rotation direction, the motion of this beat of induction is produced electric signal by the sensing mechanism combined by magneto-strain and power electric material body.The detection of the speed (acceleration) realizing translation body (housing) based on coriolis force effect is realized with this.Due to
when quality m mono-timing of particle (responsive magnetic structure), the value of Coriolis force depends on the speed of translation system (housing)
with the angular velocity of particle
so, when
less (translational velocity is slow) or
comparatively time large (translational velocity is fast), increased by correspondence or reduce particle velocity of rotation
namely can obtain
with
between optimize corresponding Spectrum Relationship, obtains stable Coriolis force, responsive magnetic structure body opposing sense mechanism locus is changed, causes the conversion of magnetoelectricity signal, and then correspondence obtains at a slow speed or the detection of translation fast.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is based on coriolis force effect, provide different drive patterns, be applicable to unlike signal feature detection demand;
2, the sensitization functional material of the present invention's use, has higher antijamming capability compared to traditional sensing mechanism (as electric capacity), can use in rugged environment;
3, present invention achieves a kind of novel translation and detect mechanism and method, and may be used for realizing the reciprocating translatory detection means without detect lines degree.
4, present invention achieves a kind of novel translation and detect mechanism and method, rigid objects translation detection can be carried out and also can carry out fluid translation detection.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is principle schematic of the present invention;
Fig. 2 is the structural representation of embodiment;
In figure:
1 is drives structure, and 2 is syndeton, and 3 is housing, and 4 is sensing mechanism, and 5 is responsive magnetic structure, and 6 is magnetic structure, and 7 is solenoid, and 8 is magnet shielding structure, and 9 is power electric material, and 10 is magneto-strain body;
V/a is translational velocity/acceleration to be detected, F
cfor Coriolis force, v
cfor the beat speed of responsive magnetic structure under Coriolis force effect, U is the detection electric signal that sensitization functional material exports, and ω is the rotation of drives structure under solenoid effect or pendulum velocity of rotation.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some changes and improvements can also be made.These all belong to protection scope of the present invention.
This embodiment provides a kind of translational velocity based on coriolis force effect or acceleration sensing device, comprise housing and be arranged at the drives structure of enclosure interior, solenoid, responsive magnetic structure, syndeton, magnet shielding structure and sensing mechanism, described housing is as translation system, its speed is v, the amount that namely will detect, in change case, the amount of detection can be acceleration a; Described drives structure interacts with solenoid group thus produces rotating or putting rotational motion relative to housing, and its angular velocity is ω; By syndeton, responsive magnetic structure is synchronized with drives structure and rotates; Under corioliseffect, the magnetoelectricity inverted signal that beat causes is there is in described sensing mechanism for gathering responsive magnetic structure.Wherein:
Described magnetic structure all adopts permanent magnet body;
Further, described drives structure in working order under under the effect of solenoid group reciprocating swing.
Further, during responsive magnetic structure employing permanent magnet, its pole orientation can be configured according to detection demand:
-pole orientation is identical with magnet beat direction;
-pole orientation is vertical, identical with magnet sense of rotation with magnet beat direction;
-pole orientation is vertical, identical with translation direction to be detected with magnet beat direction;
Further, described syndeton is the movement transfer member of drives structure and responsive magnetic structure, and syndeton will have certain flexibility, thus produces beat under corioliseffect.
Further, described magnet shielding structure can the magnetic field of shield guard part, to improve accuracy of detection.
Further, enclosure interior space is divided into the first container cavity and the second container cavity by magnet shielding structure, and described drives structure is positioned at the first container cavity, and described responsive magnetic structure is positioned at the second container cavity; Be provided with the 3rd container cavity in the sidewall of responsive the second container cavity residing for magnetic structure, be provided with container cavity in the housing sidewall at responsive magnetic structure place, described sensing mechanism is arranged in described 3rd container cavity;
Described sensing mechanism adopts following structure:
-sensing mechanism comprises the magneto-strain body (as magnetostriction materials, magnetic particle pendular body, magnetic force moving body or giant magnetic resistance) and power electric material (as piezoelectric, pressure drag material, piezomagnetic material) that contact with each other, and described power electric material is positioned at upper end and/or the lower end of magneto-strain body.
Piezomagnetic material refers to: magnetic flux crosses the material that inductive coil produces electric signal.
Further, sensing mechanism is equipped with in the both sides sidewall of responsive magnetic structure place housing; When the power electric material in wherein one group of sensing mechanism is arranged at the lower end of magneto-strain body, power electric material in other one group of sensing mechanism can be arranged at the lower end of magneto-strain body, also the upper end of magneto-strain body can be arranged at, when the power electric material in other one group of sensing mechanism is arranged at the upper end of magneto-strain body, make induced signal suffered by sensing mechanism more even, can more effective induced field change.
Further, rotation or the reciprocal beat of responsive magnetic structure inherently can make sensing mechanism produce electric signal, but its frequecy characteristic is different from the electric signal detecting translation and produce, and can extract effective detection signal by frequency estimation.Another kind method adopts pole orientation with the consistent permanent magnet of sense of rotation as responsive magnetic structure, and the rotation of such magnet can't produce the electric signal of alternation.
Further, present invention achieves a kind of novel mangneto response body and power electric material sensor device, comprise power electric material parts and magneto-strain body; The power electric material that described power electric material parts adopt is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, and be arranged at side or the end of magneto-strain body, cause carbon nano-tube or grapheme material to produce the flexible strain of strain and realization, magnetic field intensity, the detection sensing device of strength of current or voltage strength or system when forming opposing perimeter magnetic field or the lower magneto-strain body deformability of electromagnetic field change.
Because the film of any one in carbon nano-tube, grapheme material or both combined elastic structured materials composition or lamellar body or block structure have high resistance-strain ratio, namely small strain can produce great resistance variations, and then the circuit that the film that is made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials or lamellar body or block structure body are formed has tetchy electrical quantity (change of voltage or electric current), thus correspondence realizes the ultraprecise strain sensing devices of atomic small strain.Therefore, described power electric material is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, the lateral surface of magneto-strain body or inner or end can be arranged at, formed relative magneto-strain body periphery magnetic field or electromagnetic field change lower cause magneto-strain body deformability time the corresponding carbon nano-tube that arranges or Graphene class power electric material produce and strain, cause and detect change in electric.Based on this, and the flexible strain realized or magnetic field intensity or current/voltage intensity detection sensing device or system.
Further, the magnetoelectricity inverted signal that described sensing mechanism gathers, transmitted by any one mode following:
-conductive cable contacts formula;
-permanent magnetism is contactless;
-radio frequency signal conveying type.
The translational velocity based on coriolis force effect that this enforcement provides or acceleration sensing device can carry out array combination, to realize the detection of multiple degree of freedom.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, and this does not affect flesh and blood of the present invention.When not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Claims (10)
1. based on translational velocity or the acceleration sensing device of coriolis force effect, it is characterized in that, comprise housing and be arranged at the drives structure of enclosure interior, responsive magnetic structure, syndeton, magnet shielding structure and sensing mechanism;
Drives structure is driven responsive magnetic structure by syndeton;
Magnet shielding structure carries out magnetic shielding between drives structure and responsive magnetic structure;
Described housing is as translation system;
Described drives structure produces the rotary motion of relative housing, and the angular velocity of described drives structure is ω;
By syndeton, responsive magnetic structure is synchronized with drives structure and rotates;
Under corioliseffect, the magnetoelectricity inverted signal that beat causes is there is in described sensing mechanism for gathering responsive magnetic structure.
2. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, is characterized in that, described responsive magnetic structure adopts any one structure following:
-be arranged at the inner and magnetic structure be connected as a single entity with rigid body of rigid body;
The magnetic structure of-monomer structure, adopts permanent magnet or electromagnet.
3. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, is characterized in that, with the speed v of described housing or acceleration a, and based on the moving displacement of time-parameters as the amount that will detect.
4. the translational velocity based on coriolis force effect according to claim 2 or acceleration sensing device, is characterized in that, described responsive magnetic structure adopts permanent magnet, and the pole orientation of permanent magnet is configured according to detection demand.
5. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, is characterized in that, described drives structure produces rotation or back and forth rotation is dynamic;
Described drives structure adopts any one structure following:
-described drives structure adopts permanent magnet, drives permanent magnet or electromagnet by solenoid group;
-described drives structure adopts electromagnet, drives electromagnet or permanent magnet by set of permanent magnets;
-described drives structure adopts motor to export rotation;
-described drives structure adopts flat rotating mechanism and the transmission gear matched, driving rack or drive pulley, forms reciprocal rotation and moves;
Power acquisition battery needed for described drives structure, realizes measuring without cable translation of Long travel.
6. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, it is characterized in that, described syndeton is the movement transfer member of drives structure and responsive magnetic structure, and syndeton will have certain flexibility, described certain flexibility refers to and can produce beat elastic deformation under corioliseffect.
7. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, is characterized in that, the magnetic field of described magnet shielding structure shield guard part, to improve accuracy of detection.
8. the translational velocity based on coriolis force effect according to claim 1 or acceleration sensing device, it is characterized in that, enclosure interior space is divided into the first container cavity and the second container cavity by magnet shielding structure, described drives structure is positioned at the first container cavity, and described responsive magnetic structure is positioned at the second container cavity;
Be provided with the 3rd container cavity in the sidewall of responsive the second container cavity residing for magnetic structure, described sensing mechanism is arranged in described 3rd container cavity;
Described sensing mechanism adopts any one structure following:
-sensing mechanism comprises the magneto-strain body and power electric material that contact with each other, and described power electric material is positioned at upper end and/or the lower end of magneto-strain body;
-sensing mechanism comprises the special-shaped permanent-magnet structure body in the direction contacted with each other and power electric material, and the special-shaped permanent-magnet structure body in described direction adopts the special-shaped permanent magnetic monomers of the special-shaped permanent magnetic monomers in a direction or multiple direction contacted with each other; Described power electric material is positioned at upper end and/or the lower end of the special-shaped permanent-magnet structure body in direction;
-sensing mechanism comprises magneto-strain body and power electric material, and described power electric material is film or sheet body structure, and is arranged on the two sides of magneto-strain body, forms sandwich structure;
-sensing mechanism comprises magneto-strain body and power electric material;
Described magneto-strain body comprises: magnetostriction materials, magnetic particle pendular body, magnetic force moving body or giant magnetic resistance;
Described power electric material comprises: piezoelectric, pressure drag material, piezomagnetic material, carbon nano-tube or grapheme material;
Described power electric material is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, and be arranged at side or the end of magneto-strain body, cause carbon nano-tube or grapheme material correspondence to produce strain when forming magneto-strain body deformability;
-sensing mechanism adopts giant magnetic resistance body.
9. novel mangneto response body and a power electric material sensor device, is characterized in that, comprises power electric material parts and magneto-strain body;
The power electric material that described power electric material parts adopt is the film or lamellar body or block structure that are made up of any one in carbon nano-tube, grapheme material or both combined elastic structured materials, and be arranged at side or the end of magneto-strain body, cause carbon nano-tube or grapheme material to produce the flexible strain of strain and realization, magnetic field intensity, the detection sensing device of strength of current or voltage strength or system when forming opposing perimeter magnetic field or the lower magneto-strain body deformability of electromagnetic field change.
10. the unitized construction of the translational velocity based on coriolis force effect or acceleration sensing device, it is characterized in that, comprise the translational velocity based on coriolis force effect according to any one of multiple claim 1 to 8 or acceleration sensing device, multiple described translational velocity based on coriolis force effect or acceleration sensing device are that array structure is connected.
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| CN108871384A (en) * | 2017-05-12 | 2018-11-23 | 杨斌堂 | Magneto-electric precision variable sensing device and array and method based on magnetic drive |
| CN111442771A (en) * | 2020-03-20 | 2020-07-24 | 上海交通大学 | Flat plate resonance gyroscope |
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Application publication date: 20160427 |