CN110411619A - A kind of overload-resistant impact energy storage sensor based on elastomer - Google Patents
A kind of overload-resistant impact energy storage sensor based on elastomer Download PDFInfo
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- CN110411619A CN110411619A CN201910599723.0A CN201910599723A CN110411619A CN 110411619 A CN110411619 A CN 110411619A CN 201910599723 A CN201910599723 A CN 201910599723A CN 110411619 A CN110411619 A CN 110411619A
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- metal oxide
- elastomer
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- energy storage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/005—Measuring force or stress, in general by electrical means and not provided for in G01L1/06 - G01L1/22
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
- G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a kind of overload-resistant impact energy storage sensor based on elastomer, including capacitor core and shell, in the shell by high-intensity resin encapsulating, the material of shell is hard metal material to capacitor core；Capacitor core includes: that the first metal oxide collector, the first elastic support, vacuum liquid-absorbing module, the second elastic support and the second metal oxide collector pass sequentially through stacked in layers and connect to obtain laminated structure；Elastic support includes elastomer and energy-storage module, energy-storage module is filled in inside elastomer, energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic piezoresistive electrodes, and the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic piezoresistive electrodes obtain laminated construction by stacked in layers；Vacuum liquid-absorbing module includes that third metal oxide collector, the 4th metal oxide collector pass sequentially through stacked in layers with fifth metal oxide collector and connect to obtain laminated structure.
Description
Technical field
The present invention relates to new material and field of new energy technologies more particularly to a kind of overload-resistant impacts based on elastomer
Energy storage sensor.
Background technique
Current most popular three kinds of sensors, comprising: 1. piezoresistive transducers, elastic piezoresistive electrodes are by external force
When effect, thickness of electrode can change, and electrode resistance can mutate, and cause voltage change, realize sensing function；2. electricity
Capacity sensor causes the variation of condenser capacity, reaches the mesh of voltage change by changing the spacing between capacitor plate
, realize sensing function；3. electrochemical transducer[sensor uses an electrolyte as inertia mass, attached in electrode when being impacted
It is close to form convection current, cause the variation of ion concentration near electrode, and then form voltage change, realizes sensing function.
Above-mentioned three kinds of sensors only have sensing function, without having energy storage capacity and power capability, are needing simultaneously
In the case where having energy storage and sensing function, generallys use traditional sensors part and energize the shared mode of device, this method
It will lead to that system bulk is larger, be unfavorable for whole miniaturization, and this sensor with sensing function is being pressed
The response sensitivity of sensing response can decline in the case where power, and be easy under high overload impact condition because of each section shock resistance
Ability is poor and sensing failure occurs.
Therefore, need at present it is a kind of with energy storage and power capability can energy storage sensor, realize that sensor is provided simultaneously with
Response sensitivity is improved in the case where energy storage and sensing function, and improves impact resistance.
Summary of the invention
The present invention provides a kind of overload-resistant impact energy storage sensor based on elastomer, to solve existing sensor
Do not have energy storage capacity and power capability, and response sensitivity is asked by the technology that sensing failure occurs for pressure decline and high overload
Topic, thus by construct it is a kind of can be achieved at the same time energy storage and sensing function without external battery can energy storage sensor,
And using elastomer as compression supporter, and hard metal shell and high-intensity resin encapsulating are used, realizing can store up
Energy sensor keeps sensing response sensitivity and enhancing anti-shot ability in the case where being under pressure.
In order to solve the above-mentioned technical problem, the overload-resistant impact storage based on elastomer that the embodiment of the invention provides a kind of
Energy sensor, including capacitor core and shell, the capacitor core pass through high-intensity resin encapsulating in the housing, described outer
The material of shell is hard metal material；
The capacitor core includes: the first metal oxide collector, the first elastic support, vacuum liquid-absorbing module,
Two elastic supports and the second metal oxide collector；The first metal oxide collector, first resilient support
Body, the vacuum liquid-absorbing module, second elastic support and the second metal oxide collector pass sequentially through stratiform
It stacks connection and obtains laminated structure；The elastic support includes elastomer and energy-storage module, the energy-storage module filling
Inside the elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic pressure drag electricity
Pole, the described first elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain
To laminated structure；The vacuum liquid-absorbing module include third metal oxide collector, the 4th metal oxide collector and
Fifth metal oxide collector, the third metal oxide collector, the 4th metal oxide collector and described
Fifth metal oxide collector passes sequentially through stacked in layers and connects to obtain laminated structure.
Preferably, between the first metal oxide collector and first elastic support, described
Between one elastic support and the vacuum liquid-absorbing module, between the vacuum liquid-absorbing module and second elastic support,
And between second elastic support and the second metal oxide collector, bonding formation is carried out by adhesive
Point glue-line.
Preferably, between the third metal oxide collector and the 4th metal oxide collector,
Between the 4th metal oxide collector and the fifth metal oxide collector, bonding shape is carried out by adhesive
At a glue-line.
Preferably, between the third metal oxide collector and the 4th metal oxide collector
The second dispensing between first glue-line and the 4th metal oxide collector and the fifth metal oxide collector
Layer, all has notch.
Preferably, the notch on first glue-line and the direction of the gap position on the second point glue-line one
It causes.
Preferably, the third metal oxide collector and the fifth metal oxide collector are ring
Shape structure；The 4th metal oxide collector is laminated structure.
Preferably, the elastomer is ring structure.
Preferably, the shape of the supercapacitor includes round, rectangular, triangle or various obform bodies.
Preferably, the elastic support and the vacuum liquid-absorbing module by the increase of internal series-connection quantity and
It reduces, the operating voltage and capacitance of control device, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be fitted
For more application scenarios.
Compared with the prior art, the embodiment of the present invention has the following beneficial effects:
The present invention by construct it is a kind of can be achieved at the same time energy storage and sensing function without external battery can energy storage
Sensor, and using elastomer as compression supporter, and hard metal shell and high-intensity resin encapsulating are used, it solves
Existing sensor does not have energy storage capacity and power capability, and sensitive responsiveness is sensed by pressure decline and high overload
The technical issues of failure, thus realize can energy storage sensor the sensitive responsiveness of sensing and increasing are kept in the case where being under pressure
Strong anti-shot ability.
Detailed description of the invention
Fig. 1: for the overload-resistant impact energy storage sensor overall structure diagram in the embodiment of the present invention；
Fig. 2: for the structural schematic diagram of the vacuum liquid-absorbing module in the embodiment of the present invention；
Fig. 3: for the schematic illustration of the realization sensing effect in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, the preferred embodiment of the present invention provides a kind of overload-resistant impact energy storage sensing based on elastomer
Device, including capacitor core and shell, the capacitor core pass through high-intensity resin encapsulating in the housing, the material of the shell
Matter is hard metal material；
The capacitor core includes: the first metal oxide collector, the first elastic support, vacuum liquid-absorbing module,
Two elastic supports and the second metal oxide collector；The first metal oxide collector, first resilient support
Body, the vacuum liquid-absorbing module, second elastic support and the second metal oxide collector pass sequentially through stratiform
It stacks connection and obtains laminated structure；The elastic support includes elastomer and energy-storage module, the energy-storage module filling
Inside the elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic pressure drag electricity
Pole, the described first elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain
To laminated structure；The vacuum liquid-absorbing module include third metal oxide collector, the 4th metal oxide collector and
Fifth metal oxide collector, the third metal oxide collector, the 4th metal oxide collector and described
Fifth metal oxide collector passes sequentially through stacked in layers and connects to obtain laminated structure.
In the present embodiment, between the first metal oxide collector and first elastic support, described
Between one elastic support and the vacuum liquid-absorbing module, between the vacuum liquid-absorbing module and second elastic support,
And between second elastic support and the second metal oxide collector, bonding formation is carried out by adhesive
Point glue-line.
Device using laminated structure design, by metal oxide collector, elastic support and vacuum liquid-absorbing module into
Row stacked in layers, interlayer are bonded using adhesive, the specific structure such as following figure, and top layer is that the titanium of surface sintering oxidation ruthenium film closes
Golden collector, as a pole of device, next layer is annular elastomer, be piezoresistive electrodes and PTFE inside ring-shaped rubber every
Film, then lower layer are vacuum liquid-absorbing module, then lower layer is annular elastomer, and lowest level is metal oxide collector as device
Another pole, adhesive bonding is all made of between each layer.
In the present embodiment, the elastomer is ring structure.
It fixes and seals by annular resilient supporter outside energy-storage module, inside uses laminated construction, is always divided into
Three layers, upper layer is elastic piezoresistive electrodes, and middle layer is PTFE diaphragm, and lower layer is also elastic piezoresistive electrodes, by energy-storage module with this
Structure filling is having inside elastic support made from elastomer, provides the energy storage capacity and pressure of double electric layers supercapacitor
The sensing capability of electric-type sensor and piezoresistive transducer.
In the present embodiment, between the third metal oxide collector and the 4th metal oxide collector,
Between the 4th metal oxide collector and the fifth metal oxide collector, bonding shape is carried out by adhesive
At a glue-line.
In the present embodiment, between the third metal oxide collector and the 4th metal oxide collector
The second dispensing between first glue-line and the 4th metal oxide collector and the fifth metal oxide collector
Layer, all has notch.
In the present embodiment, the notch on first glue-line and the direction of the gap position on the second point glue-line one
It causes.
In the present embodiment, the third metal oxide collector and the fifth metal oxide collector are ring
Shape structure；The 4th metal oxide collector is laminated structure.
Referring to figure 2., vacuum liquid-absorbing inside modules structure: top layer is closed using the titanium of annular surface sintering oxidation ruthenium film
Golden collector, middle layer use sheet collector, and upper layer and middle layer are bonded using hot melt adhesive dispensing mode, and when dispensing sets
One section of notch is counted out as vacuum liquid-absorbing mouth, lowest level also uses the titanium alloy collector of annular surface sintering oxidation ruthenium film,
Interlayer is also bonded using jaggy glue-line, and notch direction is consistent with upper layer dispensing break mouth direction.
In the present embodiment, the shape of the supercapacitor includes round, rectangular, triangle or various obform bodies.Device
Part can be made by using titanium alloy collector of different shapes, elastomer elastic support, round, rectangular, triangle
Equal various shapes realize the shape customization of device.
In the present embodiment, the elastic support and the vacuum liquid-absorbing module by the increase of internal series-connection quantity and
It reduces, the operating voltage and capacitance of control device, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be fitted
For more application scenarios.
To adapt to different application scenarios, need to produce the device that can be used under the conditions of different voltages, the present invention
Can by way of controlling internal series-connection module number control device operating voltage and capacitance, and increase can be passed through
Or reduce control of the concatenated module realization to sensing measurement range.
As described in Figure 3, using device when being impacted, the voltage jump of generation reaches sensing effect.In discharge process
In, device is impacted, after device is impacted, whole deformation occurs, causes piezoelectricity, pressure drag, capacitor, electric chemical formula sensing principle
Response forms voltage jump, reaches sensing effect.
Supercapacitor of the present invention realize energy storage device from sensing function, by using pressure drag in supercapacitor
Formula active carbon elasticity piezoresistive electrodes realize pressure drag function, and change in shape and electrolyte when being impacted using elastic support
Internal flow realize condenser type and electric chemical formula sensing function；
Supercapacitor of the present invention also achieves the self-powered function of senser element, by inside using activated carbon electrodes
Laminated structure realizes the energy storage of double electric layers supercapacitor, there is the RuO of oxidation ruthenium film by using surface2/H2SO4Body
System and inside realize the energy storage of fake capacitance supercapacitor from concatenated laminated construction.
Supercapacitor of the present invention also achieves the continuous sensitive response to the impact of high frequency high overload；It realizes and passes through pole piece
The different selections of diaphragm, using different energy storage or sensing principle；The shape for realizing device special-shaped can customize, using not similar shape
Device can be made into different shape by the metal oxide collector and rubber washer of shape, be applicable in different application scenarios and environment；
Freely adjusting for the voltage of device is realized, the requirement under multiple power sources environment is met, by being gone here and there certainly inside control device
The flexible modulation for using device voltage and capacitance may be implemented in the amount of monomer of connection；Realize oneself of sensing measurement range
By adjusting, meeting plurality of application scenes, being surveyed by, from concatenated amount of monomer, may be implemented to sense device inside control device
Measure the flexible modulation of range；Using modularization assembling technology and continuous productive process, the small lot production of device is realized, batch is made
Make resilient support body portion, vacuum liquid-absorbing module, energy-storage module, then is successively assembled the producing efficiency, it can be achieved that high, and
And it can guarantee preferable stability and consistency.
Traditional sensors usually require external power supply, to maintain the energy supply of sensor and to the record of heat transfer agent and anti-
Feedback, and sensor can not preferably cope with the impact signal of high frequency, may result in signal can not accurately record, " energy storage-biography
The integrated supercapacitor of sense " combines the advantage of a variety of sensor mechanisms, and precision is high, and induction range is wide, and the response time is exceedingly fast, institute
There is accurate, sensitive counting response ability under the conditions of high-frequency percussion with device.
Common supercapacitor or sensor are easy to send out because each section impact resistance is poor under high overload impact condition
Raw failure, " energy storage-sensing " integration supercapacitor using high duty metal as support, using hard metal shell and
Situations such as high-intensity resin dosing technology, leakage caused by having prevented because of impact, deformation, impacts during also achieving in high overload
Under the conditions of normal, stable operation.
Flexible package technology: the flexible package method being sealed using annular elastomer circle is made using ring-shaped rubber
For sealing ring, body rubber will be supported to bond and seal with collector metal using binder, so that device is in impact condition lower edge
There is certain compressible ability, after removing external force, rubber rebound, device can restore to the original state, and realize device on thickness direction
The capacitive sensing function of part；
Vacuum liquid-absorbing technology: using perforated metal pole piece and metal pole piece, vacuum liquid-absorbing mould is made in lamination in the way of dispensing
Block, design dispensing notch realize monomer cavity intercommunication as vacuum liquid-absorbing mouth, and pole piece is fixed shares collector etc. between mould group
Multiple functions；
Overload-resistant impact encapsulation technology: metal shell, in the shell with high-intensity resin encapsulating by device, Ke Yi great are used
The impact resistance of width promotion device entirety；
Modularization assembling technology: device is divided into energy-storage module using the different function and usage in device part, vacuum is inhaled
Liquid module and sensing module assemble by each functional module of batch making, then by each functional module, realize device
Small lot is hand-made.
Metal pole piece in the present invention uses metal oxide pole piece, and the activity of metal oxide pole piece is strong, by using
Metal oxide pole piece, application be fake capacitance supercapacitor energy storage principle；Elastic electrode in the present invention uses pressure drag
Electrode is sensed using piezoresistive electrodes by being pressurized using the sensing principle that pressure drag senses；Diaphragm in the present invention uses PTFE
Diaphragm, polytetrafluoroethylene (PTFE) (are abbreviated as PTFE), commonly referred to as " non-sticking lining " or " material easy to clean ", and this material has antiacid
Alkali resistant resists the characteristics of various organic solvents, is practically insoluble in all solvents, meanwhile, polytetrafluoroethylene (PTFE) has spy resistant to high temperature
Point, its coefficient of friction are extremely low.
The present invention produces a kind of novel micro- energy device, firstly, the device is integrated with the energy-storage function of supercapacitor
With the sensing function of piezoresistive transducer, capacitance type sensor and electrochemical transducer[sensor, the energy storage of supercapacitor is combined
The sensing principle of principle and sensor, by using RuO2/H2SO4Fake capacitance super capacitor system and active carbon/H2SO4
Double electric layers supercapacitor system, to meet the application demand of device energy storage and power supply；Using rubber and activated carbon electrodes
Funtion part of the elastic piezoresistive electrodes produced as piezoresistive transducer, when being impacted, piezoresistive electrodes can generate shape
Become, the resistance value that deformation will lead to piezoresistive electrodes changes, and voltage fluctuation is generated in charge and discharge process, realizes that pressure drag senses function
Can, while the activated carbon electrodes also can be used as the pole piece progress energy storage of double electric layers supercapacitor, activated carbon electrodes can adsorb
Zwitterion in electrolyte forms potential difference in the two sides of diaphragm, to realize energy storage；Device uses H2SO4As electrolysis
Liquid, electrolyte can be moved when being impacted along impact direction, so that certain concentration difference is formed in device inside, in device
The distribution of charges that the concentration difference variation of portion's partial electrolysis liquid will lead to device inside each section is uneven, forms electricity in device inside
Potential difference leads to voltage change, to realize the electrochemical sensing function of device；Using titanium alloy as the collector of device, metal
Using rubber as elastic support between oxide current collector layers, when being impacted, resilient support, which is known from experience, to be compressed, and is reduced
Spacing between two collectors causes the capacitance variation of capacitor, causes device voltage to change, realize the condenser type of device
Sensing.
The invention enables the dual functions that single device realizes energy storage and sensing, reduce sensing system to a certain extent
The volume of system；Second, the present invention using inside the laminated type based on titanium alloy and elastomer from concatenated design method, this
Kind structure farthest reduces the redundant space of device inside, and not extra gap structure avoids in impact process
The mechanical failures such as solder joint failure, structural break caused by local stress is excessive, and also avoid high impact loads lower outer portion and lead
Line and the possibility of circuit element failure；Third, laminated type expandable structure make device can with flexibly adjustment sensing scope and
Voltage has expanded the use scope and application scenarios of device；4th, using metal shell, and high-intensity resin encapsulating is used, resisted
Impact capacity is extremely strong, and the reliability of device greatly improved.
The present invention develops a novel micro- energy device, changes traditional sensors and needs by external energy supply and overload-resistant
The disadvantage of impact capacity difference realizes device itself energy storage and energy supply, and improve traditional sensors not rushing in high frequency high overload
Sensitive response and accurate metering problem under the conditions of hitting realize sensitive response under the conditions of the impact of high frequency high overload and accurate
It counts.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of overload-resistant impact energy storage sensor based on elastomer, which is characterized in that including capacitor core and shell, institute
It states capacitor core and passes through high-intensity resin encapsulating in the housing, the material of the shell is hard metal material；
The capacitor core includes: the first metal oxide collector, the first elastic support, vacuum liquid-absorbing module, the second bullet
Property supporter and the second metal oxide collector；The first metal oxide collector, first elastic support, institute
It states vacuum liquid-absorbing module, second elastic support and the second metal oxide collector and passes sequentially through stacked in layers company
It connects to obtain laminated structure；The elastic support includes elastomer and energy-storage module, and the energy-storage module is filled in described
Inside elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic piezoresistive electrodes, described
First elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain laminated type
Structure；The vacuum liquid-absorbing module includes third metal oxide collector, the 4th metal oxide collector and fifth metal
Oxide collector, the third metal oxide collector, the 4th metal oxide collector and the fifth metal
Oxide collector passes sequentially through stacked in layers and connects to obtain laminated structure.
2. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that described first
Between metal oxide collector and first elastic support, first elastic support and the vacuum liquid-absorbing module
Between, between the vacuum liquid-absorbing module and second elastic support and second elastic support and described the
Between two metal oxide collectors, bonding is carried out by adhesive and forms point glue-line.
3. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that the third
Between metal oxide collector and the 4th metal oxide collector, the 4th metal oxide collector with it is described
Between fifth metal oxide collector, bonding is carried out by adhesive and forms point glue-line.
4. the overload-resistant impact energy storage sensor based on elastomer as claimed in claim 3, which is characterized in that the third
First glue-line and the 4th metal oxidation between metal oxide collector and the 4th metal oxide collector
Second point glue-line between object collector and the fifth metal oxide collector, all has notch.
5. the overload-resistant impact energy storage sensor based on elastomer as claimed in claim 4, which is characterized in that described first
The gap position on notch and the second point glue-line on point glue-line is towards unanimously.
6. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that the third
Metal oxide collector and the fifth metal oxide collector are ring structure；The 4th metal oxide afflux
Body is laminated structure.
7. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that described high-elastic
Rubber is ring structure.
8. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that described super
The shape of capacitor includes round, rectangular, triangle or various obform bodies.
9. the overload-resistant impact energy storage sensor based on elastomer as described in claim 1, which is characterized in that the elasticity
Supporter and the vacuum liquid-absorbing module increasing and decreasing by internal series-connection quantity, the operating voltage and capacitor of control device
Amount, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be suitable for more application scenarios.
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Application publication date: 20191105 |