CN204439097U - Self energizing sensor - Google Patents
Self energizing sensor Download PDFInfo
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- CN204439097U CN204439097U CN201520114816.7U CN201520114816U CN204439097U CN 204439097 U CN204439097 U CN 204439097U CN 201520114816 U CN201520114816 U CN 201520114816U CN 204439097 U CN204439097 U CN 204439097U
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Abstract
The utility model discloses a kind of self energizing sensor, comprising: shield shell, its inside limits upper and lower open cavity; Lower cover, it is positioned at shield shell lower end; Bearing plate, it is positioned at shield shell upper end; Elastic recovery part, bearing plate is connected by elastic recovery part with shield shell; Electrostatic component, it is made up of electrostatic portion, the first insulating part and the second insulating part, electrostatic portion comprises the first electrostatic portion and the second electrostatic portion that are separated from each other setting, first electrostatic portion is fixedly installed on bearing plate lower surface by the first insulating part, second electrostatic portion is fixedly installed on lower cover upper surface by the second insulating part, have gap between first electrostatic portion and the second electrostatic portion, the first electrostatic portion and/or the second electrostatic portion have static charge; When bearing plate is subject to external force, elastic recovery part produces deformation, makes to produce relative displacement between bearing plate and shield shell, drives the spacing in the first electrostatic portion and the second electrostatic portion to change, thus electrostatic component output voltage is changed.
Description
Technical field
The utility model belongs to sensor technical field, and specifically, the utility model relates to a kind of self energizing sensor.
Background technology
When measuring non-electrical amount by electrical measuring method, first tested non-electrical amount must be converted to electrical quantities and then input it.Usually the element that non-electrical quantitative change changes electrical quantities into is called transducer; Be called sensor according to the relevant conversion equipment that the feature of the non-electrical amount of difference is designed to, and the scales that tested mechanical quantity (as displacement, power, speed etc.) converts capacitance variations to is capacitive transducer.
Existing capacitive transducer, when carrying out the conversion of non-electrical amount, all needs, in advance to capacitor energization, could monitor the change of capacitance afterwards, so just cause it to have environment for use critical constraints, and the problem such as connecting circuit is comparatively complicated.
Therefore, existing sensor is further improved.
Utility model content
The utility model is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of self energizing sensor, and this sensor may be used for the detection of displacement, speed, acceleration and mechanics, and does not need additionally to provide energy, has the features such as usable range is wide, connecting circuit is simple.
In one of the present utility model, the utility model proposes a kind of self energizing sensor, comprising:
Shield shell, described inside of shield casings limits the chamber opened wide up and down;
Lower cover, described lower cover is positioned at the lower end of described shield shell;
Bearing plate, described bearing plate is positioned at the upper end of described shield shell;
Elastic recovery part, described bearing plate is connected by described elastic recovery part with described shield shell;
Electrostatic component, described electrostatic component is by electrostatic portion and lay respectively at the first insulating part of described electrostatic portion upper surface and lower surface and the second insulating part forms, described electrostatic component is arranged in described chamber, described electrostatic portion comprises the first electrostatic portion and the second electrostatic portion that are separated from each other setting from top to bottom, described first electrostatic portion is fixedly installed on the lower surface of described bearing plate by described first insulating part, described second electrostatic portion is fixedly installed on the upper surface of described lower cover by described second insulating part, between described first electrostatic portion and the second electrostatic portion, there is gap, described first electrostatic portion and/or the second electrostatic portion have static charge,
When described bearing plate is subject to External Force Acting, described elastic recovery part produces deformation, and then make to produce relative displacement between described bearing plate and described shield shell, drive the spacing in described first electrostatic portion and the second electrostatic portion to change, thus the output voltage of described electrostatic component is changed.
Can the elastic recovery part of deformation by adopting according to the self energizing sensor of the utility model embodiment, make when bearing plate is subject to external force, bearing plate extruding elastic recovery part generation deformation, thus the distance between the first electrostatic portion and the second electrostatic portion is changed, and owing to the first electrostatic portion and/or the second electrostatic portion having static charge, and then the electric potential difference between the first electrostatic portion and the second electrostatic portion is changed or there is electric potential difference between any one and zero potential object (as shield shell) and change of the first electrostatic portion and the second electrostatic portion, then the change of output voltage can be recorded by corresponding measuring equipment (as electrostatic voltmeter).
Therefore self energizing sensor of the present utility model have do not need power supply supply, connecting circuit simple, by the less advantage of environmental restraint.
In addition, following additional technical characteristic can also be had according to the self energizing sensor of the utility model above-described embodiment:
In embodiments more of the present utility model, described first insulating part comprises the first stacked from top to bottom insulation course and the first insulating washer, and described second insulating part comprises the second stacked from top to bottom insulating washer and the second insulation course.Thus, the leakage of electric charge can effectively be avoided.
In embodiments more of the present utility model, described elastic recovery part is extruded gasket, and described extruded gasket is arranged between described shield shell upper end and described bearing plate lower surface.
In embodiments more of the present utility model, described first electrostatic portion is made up of the first electrode, and described second electrostatic portion is made up of the first macromolecule polymeric material part.
In embodiments more of the present utility model, described second electrostatic portion comprises the second electrode further, and described second electrode is arranged on the lower surface of described first macromolecule polymeric material part.
In embodiments more of the present utility model, described first electrostatic portion comprises the second macromolecule polymeric material part further, and described second macromolecule polymeric material part is arranged on the lower surface of described first electrode.
In embodiments more of the present utility model, described first electrostatic portion comprises the second macromolecule polymeric material part further, described second electrostatic portion comprises the second electrode further, described second macromolecule polymeric material part is arranged on the lower surface of described first electrode, and described second electrode is arranged on the lower surface of described first macromolecule polymeric material part.
In embodiments more of the present utility model, described first macromolecule polymeric material part and/or the second macromolecule polymeric material part has static charge.
In embodiments more of the present utility model, described first electrode and described shield shell are the signal output part of described self energizing sensor.
In embodiments more of the present utility model, described first electrode and described second electrode are the signal output part of described self energizing sensor.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural blast schematic diagram of the self energizing sensor according to the utility model embodiment;
Fig. 2 is the structural representation according to the electrostatic component in the self energizing sensor of the utility model embodiment;
Fig. 3 is the structural representation according to the electrostatic portion in the self energizing sensor of the utility model embodiment;
Fig. 4 is the structural representation according to the electrostatic portion in the self energizing sensor of another embodiment of the utility model;
Fig. 5 is the structural representation according to the electrostatic portion in the self energizing sensor of another embodiment of the utility model;
Fig. 6 is the structural representation according to the electrostatic portion in the self energizing sensor of another embodiment of the utility model;
Fig. 7 is the cross-sectional view of the self energizing sensor according to the utility model embodiment;
Voltage-displacement collection of illustrative plates that Fig. 8 adopts the self energizing sensor of the utility model embodiment to obtain.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In one of the present utility model, the utility model proposes a kind of self energizing sensor.Self energizing sensor below with reference to Fig. 1-8 pairs of the utility model embodiments is described in detail.According to embodiment of the present utility model, this sensor comprises:
Shield shell 100: according to embodiment of the present utility model, shield shell 100 inside limits the chamber 10 opened wide up and down.
According to embodiment of the present utility model, shield shell 100 can form by metal or containing metal and nonmetallic compound substance.Concrete, when shield shell material is metal, metal material can play support and electric signal function of shielding simultaneously; When shield shell material is for during containing metal and nonmetallic compound substance, nonmetallic materials are as the supporting construction of shield shell, and metal material is coated on extexine or the endosexine of nonmetallic materials, play electric signal shielding action.
Lower cover 200: according to embodiment of the present utility model, lower cover 200 can be positioned at the lower end of shield shell 100 and be suitable for the lower ending opening of closed chamber 10.It should be noted that, " lower cover is suitable for the lower ending opening of closed chamber " herein can be understood as lower cover and can cover the lower ending opening of chamber completely and can be fixedly connected with the lower end of shield shell 100.
According to embodiment of the present utility model, the material of lower cover 200 is identical with the selection of shield shell 100.
Bearing plate 300: according to embodiment of the present utility model, bearing plate 300 is positioned at the upper end of shield shell 100 and is suitable for the upper end open of closed chamber 10.Concrete, between bearing plate 300 with shield shell 100, relative displacement can occur, the direction of displacement is the degree of depth bearing of trend of chamber 10.
According to embodiment of the present utility model, the material of bearing plate 300 is identical with the selection of shield shell 100.
Elastic recovery part 400: according to embodiment of the present utility model, bearing plate 300 is connected by elastic recovery part 400 with shield shell 100.Concrete, when bearing plate is not subject to external force, bearing plate, connection between shield shell and elastic recovery part three for being fixedly connected with, the upper end open of the chamber of bearing plate lock shield housing; And when bearing plate is subject to external force, elastic recovery part generation deformation, bearing plate can move along the degree of depth bearing of trend of chamber.
According to embodiment of the present utility model, elastic recovery part 400 can be extruded gasket, and extruded gasket can be arranged between shield shell 500 upper end and bearing plate 300 lower surface.Concrete, according to the needs such as product function, outward appearance, bearing plate can be designed to boss structure by those skilled in the art, extruded gasket is set on boss structure, product appearance can be made so more attractive in appearance, certain those skilled in the art can use other physical construction, and extruded gasket can for having elastic deformation and recoverable elastic body, such as, can be rubber, plastics and spring etc.
Electrostatic component 500: according to embodiment of the present utility model, electrostatic component 500 is by electrostatic portion 51 and lay respectively at the first insulating part 52 of electrostatic portion 51 upper surface and lower surface and the second insulating part 53 forms (as shown in Figure 2).
According to embodiment of the present utility model, electrostatic component 500 is arranged in chamber 10.
According to embodiment of the present utility model, electrostatic portion 51 comprises the first electrostatic portion 54 and the second electrostatic portion 55 being separated from each other setting from top to bottom, according to specific embodiment of the utility model, first electrostatic portion 54 can be fixedly installed on the lower surface of bearing plate 300 by the first insulating part 52, second electrostatic portion 55 can be fixedly installed on the upper surface of lower cover 200 by the second insulating part 53, wherein, have gap 60 between first electrostatic portion 54 and the second electrostatic portion 55, the initial distance in gap 60 can be determined according to product parameters.
According to embodiment of the present utility model, above at least one of first electrostatic portion 54 and the second electrostatic portion 55, there is static charge, the effect of this static charge be electrostatic component is oppositely arranged two electrostatic portions between induction produce electrostatic potential, and by output terminal export output voltage.
According to embodiment of the present utility model, when bearing plate 300 is subject to External Force Acting, elastic recovery part 400 produces deformation, and then make to produce relative displacement between bearing plate 300 and shield shell 100, drive the distance in the gap 60 between the first electrostatic portion 54 and the second electrostatic portion 55 to change, thus the output voltage of electrostatic component 500 is changed.
According to embodiment of the present utility model, the first insulating part 52 comprises the first stacked from top to bottom insulation course 56 and the first insulating washer 57.Thus, the leakage of electric charge can effectively be avoided.
According to embodiment of the present utility model, the second insulating part 53 comprises the second stacked from top to bottom insulating washer 58 and the second insulation course 59.Thus, the leakage of electric charge can effectively be avoided further.
Concrete, electrostatic portion needs to adopt following array configuration according to difference:
As shown in Figure 3, the first electrostatic portion 54 is made up of the first electrode 541, and the second electrostatic portion 55 is made up of the first macromolecule polymeric material part 551.In the sensor in this kind of structure electrostatic portion, the first electrode 541 and shield shell 100 are as the signal output part of sensor.The advantage in the electrostatic portion of this kind of structure is that structure is simple, but there is the relatively weak problem of output voltage signal, and this problem can be able to overcome according to the distance of the needs of different sensors parameter and suitable adjusting play 60.
As shown in Figure 4, on architecture basics shown in Fig. 3, second electrostatic portion 55 further increases the second electrode 552, second electrode 552 is arranged on the lower surface of the first macromolecule polymeric material part 551, and namely the second electrostatic portion 55 is made up of the firstth macromolecule polymeric material part 551 of stacked setting and the second electrode 552.In the sensor of this kind of structure, the first electrode 541 and the second electrode 552 are as the signal output part of sensor.The advantage of the Power Generation Section of this kind of structure is that output voltage signal is relatively large.
As shown in Figure 5, on architecture basics shown in Fig. 3, first electrostatic portion 54 further increases the second macromolecule polymeric material part 542, second macromolecule polymeric material part 542 is arranged on the lower surface of the first electrode 541, and namely the first electrostatic portion 54 is made up of the first electrode 541 of stacked setting and the second macromolecule polymeric material part 542.In the sensor of this kind of structure, the first electrode 541 and shield shell 100 are as the signal output part of sensor.The Power Generation Section of this kind of structure adopts macromolecule polymeric material part and the mutual induction of macromolecule polymeric material part, and advantage is that output voltage signal is relatively large, and preferably the first macromolecule polymeric material part and the second macromolecule polymeric material part select different materials.
As shown in Figure 6, on architecture basics shown in Fig. 3, first electrostatic portion further increases the second macromolecule polymeric material part 542, second electrostatic portion further increases the second electrode 552, wherein, second macromolecule polymeric material part 542 is arranged on the lower surface of the first electrode 541, second electrode 552 is arranged on the lower surface of the first macromolecule polymeric material part 551, namely the first electrostatic portion 54 is made up of the first electrode 541 of stacked setting and the second macromolecule polymeric material part 542, second electrostatic portion 55 is made up of the first macromolecule polymeric material part 551 of stacked setting and the second electrode 552, in the sensor of this kind of structure, first electrode 541 and the second electrode 552 are as the signal output part of sensor.This kind of structure adopts macromolecule polymeric material part and the mutual induction of macromolecule polymeric material part, and advantage is that output voltage signal is relatively larger, and preferably the first macromolecule polymeric material part and the second macromolecule polymeric material part select different materials.
According to embodiment of the present utility model, first macromolecule polymeric material part and the second macromolecule polymeric material part material respectively can for being selected from as polyimide, aniline formaldehyde resin, polyoxymethylene, ethyl cellulose, polyamide, melamino-formaldehyde, polyglycol succinate, cellulose, cellulose ethanoate, polyethylene glycol adipate, polydiallyl phthalate, cellulose sponge, renewable sponge, polyurethane elastomer, styrene-acrylonitrile copolymer multipolymer, styrene-butadiene-copolymer, regenerated fiber, poly-methyl, methacrylate, polyvinyl alcohol (PVA), polyester, polyisobutylene, polyurethane flexible sponge, polyethylene terephthalate, polyvinyl butyral, formaldehyde-phenol, neoprene, butadiene-propylene copolymer, natural rubber, polyacrylonitrile, at least one in vinyl cyanide vinyl chloride and tygon third diphenol carbonate.
According to embodiment of the present utility model, the first electrode and the second electrode material respectively can for being selected from least one in indium tin oxide, Graphene, nano silver wire film, Au Ag Pt Pd, aluminium, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten, vanadium, aluminium alloy, titanium alloy, magnesium alloy, beryllium alloy, aldary, kirsite, manganese alloy, nickel alloy, lead alloy, ashbury metal, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungalloy, molybdenum alloy, niobium alloy and tantalum alloy.
Below with reference to Fig. 7 and Fig. 2, the duty of sensor is described.
As shown in Figure 7, sensor comprises shield shell 100, for the lower cover 200 of lock shield housing 100 chamber lower ending opening, the bearing plate 300 for lock shield housing 100 chamber upper end open, connect the elastic recovery part 400 of bearing plate 300 and shield shell 100, with be arranged in chamber 10 electrostatic component 500 and (comprise the first electrostatic portion of insulating part 52, first electrostatic portion 54, second 55 and the second insulating part 53 arranged from top to bottom, wherein, the first electrostatic portion and the second electrostatic portion are by electrode and/or macromolecule polymeric material part composition).Now, because bearing plate is not by external force, elastic recovery part 400 (being herein extruded gasket) does not have deformation and in the raw, the distance in gap 60 remains unchanged, when bearing plate is stressed, make elastic recovery part 400, under the pressure of bearing plate and shield shell, deformation occur, thus the distance in the gap 60 between the first electrostatic portion and the second electrostatic portion is changed, then the output voltage between the first electrostatic portion and the second electrostatic portion is made to change, then employing static voltmeter or other electrostatic potential checkout equipments can record the voltage between the first electrostatic portion and the second electrostatic portion, the change of this sensor output voltage can be reflected, then can obtain as shown in Equation 1 about the functional relation of X (t) according to the spacing X (t) between the first electrostatic portion and the second electrostatic portion and the functional relation of measured voltage V,
X (t)=KV formula 1
Wherein, K is a fixed coefficient
Thus, timing time stressed from bearing plate further, velocity function v (t) relational expression can be obtained about time t differential to formula 1 functional relation, about time t differential, acceleration function a (t) relational expression is obtained to velocity function v (t) relational expression, because extruded gasket deflection is equal with the spacing X (t) between the first electrostatic portion and the second electrostatic portion, external force suffered by bearing plate can be obtained
functional relation.
Concrete, for self energizing sensor of the present utility model, control the distance between the first electrostatic portion and the second electrostatic portion by stepper motor slide unit, and adopt static voltmeter (KEITHLEY Model 6514 System Electromer) to measure its open-circuit voltage.
Experimental procedure: the state keeping released state to be elastic recovery part and not have deformation for 12 hours in two electrostatic portions of self energizing sensor of the present utility model, stepper motor slide unit is utilized to be close to the first electrostatic portion in this sensor and the second electrostatic portion, make the distance between the first electrostatic portion and the second electrostatic portion reduce 0.1mm at every turn, period utilize static pressure voltage to measure each fixed point displacement magnitude of voltage, the displacement voltage curve map obtained is as shown in Figure 8.
In fig. 8, Y value represents the magnitude of voltage measured by electrostatic voltmeter, horizontal ordinate numerical value represents the spacing variable quantity in the first electrostatic portion and the second electrostatic portion, as seen from the figure, the output voltage values of sensor is good linear relationship with the distance variable quantity between two electrostatic portions, more excellent, the working range of two Power Generation Section clearance distance constant intervals corresponding to one section of linear best curve as sensor can be intercepted.
According to the paper delivered at academic journal " energy and environment science " " Theoretical study of contact-modetriboelectric nanogenerators as an effective power source " (ENERGY & ENVIRONMENTALSCIENCE, 2013; 6 (12): 3576) test (as Fig. 8) of the record in and inventor is known, there is linear relationship one to one in above-mentioned output voltage values and the spacing between the first triboelectricity portion and the second triboelectricity portion, obtain corresponding displacement function relation, achieve process change in displacement being converted to output voltage change, the i.e. function of displacement transducer, then calculated by corresponding function, the functions such as acceleration, speed, pressure can also be obtained, realize other functions as acceleration, pressure transducer.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. a self energizing sensor, is characterized in that, comprising:
Shield shell, described inside of shield casings limits the chamber opened wide up and down;
Lower cover, described lower cover is positioned at the lower end of described shield shell;
Bearing plate, described bearing plate is positioned at the upper end of described shield shell;
Elastic recovery part, described bearing plate is connected by described elastic recovery part with described shield shell;
Electrostatic component, described electrostatic component is by electrostatic portion and lay respectively at the first insulating part of described electrostatic portion upper surface and lower surface and the second insulating part forms, described electrostatic component is arranged in described chamber, described electrostatic portion comprises the first electrostatic portion and the second electrostatic portion that are separated from each other setting from top to bottom, described first electrostatic portion is fixedly installed on the lower surface of described bearing plate by described first insulating part, described second electrostatic portion is fixedly installed on the upper surface of described lower cover by described second insulating part, between described first electrostatic portion and the second electrostatic portion, there is gap, described first electrostatic portion and/or the second electrostatic portion have static charge,
When described bearing plate is subject to External Force Acting, described elastic recovery part produces deformation, and then make to produce relative displacement between described bearing plate and described shield shell, drive the spacing in described first electrostatic portion and the second electrostatic portion to change, thus the output voltage of described electrostatic component is changed.
2. self energizing sensor according to claim 1, it is characterized in that, described first insulating part comprises the first stacked from top to bottom insulation course and the first insulating washer, and described second insulating part comprises the second stacked from top to bottom insulating washer and the second insulation course.
3. self energizing sensor according to claim 1, is characterized in that, described elastic recovery part is extruded gasket, and described extruded gasket is arranged between described shield shell upper end and described bearing plate lower surface.
4. self energizing sensor according to claim 1, is characterized in that, described first electrostatic portion is made up of the first electrode, and described second electrostatic portion is made up of the first macromolecule polymeric material part.
5. self energizing sensor according to claim 4, is characterized in that, described second electrostatic portion comprises the second electrode further, and described second electrode is arranged on the lower surface of described first macromolecule polymeric material part.
6. self energizing sensor according to claim 4, is characterized in that, described first electrostatic portion comprises the second macromolecule polymeric material part further, and described second macromolecule polymeric material part is arranged on the lower surface of described first electrode.
7. self energizing sensor according to claim 4, it is characterized in that, described first electrostatic portion comprises the second macromolecule polymeric material part further, described second electrostatic portion comprises the second electrode further, described second macromolecule polymeric material part is arranged on the lower surface of described first electrode, and described second electrode is arranged on the lower surface of described first macromolecule polymeric material part.
8. the self energizing sensor according to any one of claim 4-7, is characterized in that, described first macromolecule polymeric material part and/or the second macromolecule polymeric material part have static charge.
9. the self energizing sensor according to claim 4 or 6, is characterized in that, described first electrode and described shield shell are the signal output part of described self energizing sensor.
10. the self energizing sensor according to claim 5 or 7, is characterized in that, described first electrode and described second electrode are the signal output part of described self energizing sensor.
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| CN201520114816.7U CN204439097U (en) | 2015-02-16 | 2015-02-16 | Self energizing sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776868A (en) * | 2015-02-16 | 2015-07-15 | 纳米新能源（唐山）有限责任公司 | Self-powered sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776868A (en) * | 2015-02-16 | 2015-07-15 | 纳米新能源（唐山）有限责任公司 | Self-powered sensor |
| CN104776868B (en) * | 2015-02-16 | 2017-04-12 | 纳米新能源（唐山）有限责任公司 | Self-powered sensor |
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Granted publication date: 20150701 Effective date of abandoning: 20170412 |