CN206593752U - Contact sound detection sensor and contact sound sensing device - Google Patents
Contact sound detection sensor and contact sound sensing device Download PDFInfo
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- CN206593752U CN206593752U CN201720198083.9U CN201720198083U CN206593752U CN 206593752 U CN206593752 U CN 206593752U CN 201720198083 U CN201720198083 U CN 201720198083U CN 206593752 U CN206593752 U CN 206593752U
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Abstract
The utility model discloses a kind of contact sound detection sensor and contact sound sensing device, wherein contact sound detection sensor includes：Conductive fabric, at least one contact component and the contact electrode below at least one contact component；Wherein, at least one contact component and contact electrode are wrapped up by conductive fabric, and at least one contact component part exposes to form contact area；Contact two signal output parts of electrode and conductive fabric for contact sound detection sensor.Because loss of the sound in fixed conducting medium is less than aerial loss, the contact sound detection sensor provided using the utility model, it can sense faint voice signal by directly being contacted with sensed subject surface, monitoring of neonate and infant physical sign sound etc. is can apply to, the sensitivity of sound sensing is greatly promoted.
Description
Technical field
The utility model is related to sensor field, more particularly to a kind of contact sound detection sensor and contact sound
Sound sensing device.
Background technology
Sensor (English name：Transducer/sensor) it is a kind of detection means, measured letter can be experienced
Breath, and the information experienced can be for conversion into electric signal or the information output of other required forms according to certain rules, to meet
Transmission, processing, storage, display, record and control of information etc. are required.The maximum feature of sensor be exactly be miniaturized, digitize,
Intellectuality, using these features, can easily obtain accurately and reliably information.Therefore, sensor, which is widely used in, obtains
It is derived from the information in right and production field.
With the progress of science and technology, sensor technology is gradually applied to medical field, to realize to human life body
The coherent detection levied, thus the confinement problems of the four methods of diagnosis in traditional medical technology are overcome, being capable of intelligentized transmission life
Order information.
During the utility model is realized, inventor has found that at least there are the following problems in the prior art：Impression is tested
The reaction of the sensing element of vital sign (especially neonate and infant) information is not sensitive enough, for microseism and body
The sign sound such as dynamic can not be embodied in time, thus can not accurately obtain sign information；The design of single sensing contact point will
Sensor will be moved to suitable position to obtain optimal monitoring point by asking during each detection, be operated pretty troublesome.
Utility model content
Goal of the invention of the present utility model is that the defect for being directed to prior art is sensed there is provided a kind of contact sound-detection
Device and contact sound sensing device, for solving prior art, dynamic to microseism and body to wait voice signal to sense sensitive
The low technical problem of degree.
According to one side of the present utility model there is provided a kind of contact sound detection sensor, including：Conductive fabric,
At least one contact component and the contact electrode below at least one contact component；
Wherein, at least one contact component and contact electrode are wrapped up by conductive fabric, the exposure of at least one contact component part
Form contact area；
Contact two signal output parts of electrode and conductive fabric for contact sound detection sensor.
Alternatively, the bottom of contact component is cambered surface, can be moved back and forth in the presence of external force.
Alternatively, contact component is made up of silica gel.
Alternatively, contact component is made up of PDMS；The bottom cambered surface of contact component is convex-concave surface.
Alternatively, contact electrode is phase on a piezoelectric membrane below at least one contact component, piezoelectric membrane
For contact component one side provided with printing electrode.
Alternatively, contact electrode is a piezoelectric membrane below at least one described contact component, piezoelectric membrane
The position of correspondence contact component, which is provided with, on the upper one side away from contact component prints electrode；Print electrode and the contact component
Quantity is identical and position correspondence.
Alternatively, the corresponding piezoelectric membrane lower position of each contact component is provided with metal retainer plate, each contact
Part bonds together with piezoelectric membrane, metal retainer plate.
Alternatively, contact electrode is metal electrode；Metal electrode is identical with the quantity of contact component and position is corresponding.
Alternatively, contact electrode is a metal electrode film below at least one contact component.
Alternatively, contact electrode is a metal composite thin film below at least one contact component.
Alternatively, contact electrode is answered for the metal for being coated with metal electrode below at least one contact component
Film is closed, metal electrode is identical with the quantity of contact component and position is corresponding.
Alternatively, metal electrode is multiple, and multiple metal electrode parallel connections form one of contact sound detection sensor
Signal output part.
Alternatively, at least one contact component of conductive fabric internal package and contact electrode and at least one contact component is made
Part exposure forms the rubber strip of contact area.
Alternatively, contact sound detection sensor also includes：The metal alloy lead ring that is arranged on around contact area or
Plastic cement lead ring.
Alternatively, contact area is arranged on the other end of the contact component away from contact electrode.
According to other side of the present utility model there is provided a kind of contact sound sensing device, including at least one
Contact sound detection sensor and encapsulation pad, at least one contact sound detection sensor be arranged on encapsulation pad it is internal or
Surface.
The contact sound detection sensor and contact sound sensing device provided according to the utility model, when by
When the microseismic activity effect of sound or dynamic body, contact component stress can be made, and electric charge is induced simultaneously on contact electrode
Electric signal is exported, the sensing to faint sound is realized；Because loss of the sound in fixed conducting medium is less than in air
In loss, the contact sound detection sensor provided using the utility model, by directly being connect with sensed subject surface
Faint voice signal can be sensed by touching, and be can apply to the monitoring etc. of neonate and infant physical sign sound, greatly promoted sound
The sensitivity of sensing.
Brief description of the drawings
The overlooking the structure diagram for the contact sound sensing device embodiment that Fig. 1 provides for the utility model；
Fig. 2 is the cross section structure signal of the contact sound detection sensor one embodiment in the A-A directions shown in Fig. 1
Figure；
Fig. 3 is that the cross section structure of the contact sound detection sensor in A-A directions another embodiment shown in Fig. 1 shows
It is intended to；
Fig. 4 is the regional area enlarged diagram of the contact sound detection sensor cross section structure shown in Fig. 3；
Fig. 5 is that the cross section structure of the contact sound detection sensor in A-A directions another embodiment shown in Fig. 1 shows
It is intended to.
Embodiment
To be fully understood by the purpose, feature and effect of the utility model, by following specific embodiments, to this practicality
It is new to elaborate, but the utility model is not restricted to this.
In order to make the microseismic activity of the faint sounds such as sign sound (the especially sign sound of neonate and infant) signal
Easily it is collected, the utility model provides a kind of contact sound detection sensor and contact sound sensing device,
Contact sound detection sensor includes：Conductive fabric, at least one contact component and below at least one contact component
Contact electrode.Wherein, at least one contact component and contact electrode are wrapped up by conductive fabric, and at least one contact component part is sudden and violent
Dew forms contact area, and the contact area of the contact component is contacted with the surface of sensed object, and contact area senses microseism
After dynamic, exported by contact component with contacting the effect of electrode and producing electric charge, realize the accurate acquisition to faint sound.Connect
Touched electrode and two signal output parts that conductive fabric is contact sound detection sensor, the one of output is used as by contact electrode
End, conductive fabric is the other end of output, and the output signal is used for transmitting the voice signal that contact area is sensed, and then will be faint
Voice signal be converted to electric signal form output, be easy to observe and analyze vital signs.
Exemplified by sensing sign sound, when the skin surface of sensed person is contacted with contact sound detection sensor, by
Sense the microseismic activity of sign sound in contact area, make contact component stress, then contact electrode on induce electric charge so as to
Electric signal is exported, the information such as the power this makes it possible to the electric signal by output to analyze microseismic activity reaches and utilizes the information
To diagnose the purpose of vital signs.
The contact sound detection sensor provided below by several specific embodiments utility model and contact
The structure and sensing principle of formula sound sensing device are described further.
The overlooking the structure diagram for the contact sound sensing device embodiment that Fig. 1 provides for the utility model.Such as Fig. 1 institutes
Show, the contact sound sensing device is included in encapsulation pad 101 and at least one contact sound detection sensor 102, Fig. 1
3 contact sound detection sensors 102 are shown, but the utility model is not made to the quantity of contact sound detection sensor
Concrete restriction.3 contact sound detection sensors 102 are arranged on the surface of encapsulation pad 101.Alternatively, contact sound is visited
The inside of encapsulation pad can also be arranged on by surveying sensor.Exemplified by sensing sign sound, encapsulation pad can be used to wrap up arm, waist
Portion or the sensing belt or mattress for contacting cardia.Connect by encapsulating pad surface or at least one internal set
Touch sound detection sensor realized to the sensing of sign sound, wherein sign sound include but are not limited to breathing, pulse, heartbeat with
And blood pressure etc..
When contact sound sensing device includes multiple contact sound detection sensors, multiple contact sound-detections
Sensor can be connected in parallel output electric signal.
For each contact sound detection sensor 102, it includes conductive fabric, at least one contact component and position
Contact electrode below at least one contact component；Wherein, at least one contact component and contact electrode are wrapped up by conductive fabric,
Contact component part exposes to form contact area；Contact two signals of electrode and conductive fabric for contact sound detection sensor
Output end.
In Fig. 1, each contact sound detection sensor 102 (shows including at least one sensing contact point 103 in Fig. 1
Having gone out a contact sound detection sensor includes 3 sensing contact points, but the utility model is to the quantity of contact sensing point
It is not specifically limited), each sensing contact point 103 comprises at least a contact component and a contact electrode；Sensing contact point
103 by conductive fabric after being wrapped up, and a part of region exposure of contact component is formed as contact area, and contact area is directly with being felt
The object contact of survey；Multiple sensing contact points 103 can be acted on whole film simultaneously, wherein, the film has to be become in stress
The attribute of electric charge can be produced in the case of shape；The contact electrode of multiple sensing contact points 103 is in parallel as a signal output part,
Conductive fabric is another signal output part.
Monitor sign sound when, the skin surface by contact area directly with monitored person is contacted, sign sound it is micro-
Shock effect causes contact component to move down on contact area, and then with contacting electrode contact, senses on contact electrode
Go out electric charge and export electric signal, the electric signal that the contact electrode of multiple sensing contact points is produced is exported by parallel way.
The contact sound sensing device provided using the present embodiment, when the microseismic activity effect by sound, can make
Contact component stress, and induce electric charge on contact electrode and export electric signal, realize the sensing to faint sound；Due to sound
Loss of the sound in fixed conducting medium is less than aerial loss, and the contact sound provided using the utility model is passed
Induction device, can sense faint voice signal by directly being contacted with sensed subject surface, such as sign sound, greatly promote
The sensitivity of sound sensing.The contact sound sensing device can be used for monitoring sign sound, for example, can be by the contact sound
Sound sensing device is tied up at monitored person's body part position, is such as tied up in arm or chest, or, be placed on monitored person's body it
Under, such as it is placed under neonate or infant's body, the microseismic activity information of sign sound is converted to electric signal output by realization, it is real
Show the collection of the faint sign message number to being difficult monitoring, and the electric signal of output is easier analysis, can be according to telecommunications
Number provide acquisition of information vital sign information.In the contact sound sensing device that the present embodiment is provided, multiple sensing contacts
The display and design of point can increase effective monitoring area, it is to avoid existing number voice sensor needs artificial multiple movement to pass
Sensor goes to obtain optimal test position.
Fig. 2 is the cross section structure signal of the contact sound detection sensor one embodiment in the A-A directions shown in Fig. 1
Figure.The contact sound detection sensor that Fig. 2 is provided is the sensor being made using the piezo-electric effect produced after dielectric medium stress,
The dielectric used in the present embodiment is piezoelectric membrane.As shown in Fig. 2 the contact sound detection sensor includes：Conductive fabric
201st, silica piston 202, metal or metal alloy retainer plate 203, piezoelectric membrane 204, rubber strip 205 and metal alloy lead ring or
Plastic cement lead ring 206.
In the present embodiment, the bottom of contact component is cambered surface, and can be moved back and forth in the presence of external force, and it is by silica gel
It is made, silica piston 202 is referred to as in the present embodiment, contact electrode is a piezoelectricity below at least one contact component
Film 204, and one side of the piezoelectric membrane 204 away from contact component, provided with printing electrode, contact area is arranged on contact site
The other end of the part away from contact electrode, the upper surface that specially silica piston 202 exposes, i.e., the position that microseismic activity is acted in figure；
For convenience of describing, by the conductive fabric 201 shown in Fig. 2, silica piston 202, metal or metal alloy retainer plate 203, piezoelectric membrane
What the 204th, rubber strip 205 and metal alloy lead ring or plastic cement lead ring 206 were constituted is collectively referred to as a sensing contact point, a contact
Formula sound detection sensor can be made up of multiple sensing contact points display.
Conductive fabric, wraps up at least one contact component and contact electrode and makes at least one contact component part expose to be formed
Contact area.In Fig. 2, conductive fabric 201 is led for wrapping up piezoelectric membrane 204 on its interior, rubber strip 205 and metal alloy
Ring or plastic cement lead ring 206, and portion envelops silica piston 202 makes its part expose to form contact area.Conductive fabric 201 is covering
Each structure of sensing contact point and only expose contact area be advisable, the interference for shielding external signal.
Rubber strip, at least one contact component of conductive fabric internal package and contact electrode and makes at least one contact component
Part exposure forms contact area.In Fig. 2, rubber strip 205 is in the conductive fabric internal package He of piezoelectric membrane 204 on its interior
Metal alloy lead ring or plastic cement lead ring 206, and portion envelops silica piston 202 makes its part expose to form contact area.Rubber
Band 205 has flexibility, can lift contact sound detection sensor and the sense of touch of human contact, more pro-skin is comfortable.
Silica piston 202, the surface of its top laminating contact monitored site, the part of exposure outside is referred to as contact zone
Domain, the contact area is directly contacted with monitored target；The bottom of silica piston 202 is cambered surface, and bottom cambered surface, piezoelectric membrane
204 with metal alloy retainer plate 203 be closely bonded with glue together with, when active force of the contact area by microseismic activity
Afterwards, silica piston 202 can be moved down, and then piezoelectric membrane 204 is under pressure generation deformation；Exposure is outside directly with being supervised
The contact area for surveying location contacts is silica gel material, it is to avoid contact site produces uncomfortable phenomenon, and its surface is smooth, is not likely to produce
Resistance, it is flexible, it is easy to homing.
Metal or metal alloy retainer plate 203, gold is provided with the corresponding piezoelectric membrane lower position of each contact component
Belong to retainer plate or metal alloy retainer plate, each contact component is bonded in one with piezoelectric membrane, metal or metal alloy retainer plate
Rise.
The corresponding lower position of piezoelectric membrane 204 of each silica piston 202 is provided with metal retainer plate 203, is specially
The periphery of the bottom cambered surface of corresponding silica gel piston 202, the piezoelectric membrane 204 of the top of metal retainer plate 203 is be bonded with silica piston 202
Together, and metal retainer plate 203 bonds together with piezoelectric membrane 204, metal retainer plate 203 is used to fix piezoelectric membrane
204 periphery, so that the periphery of silica piston 202 can not be deformed upon, and centre position can produce deformation.In silica piston
When 202 stress move down and the piezoelectric membrane 204 is stressed, piezoelectric membrane 204 can only be that centre position produces deformation, so
It is to ensure that after prolonged, piezoelectric membrane 204 is overall to sink, and then influences later monitoring precision.
Piezoelectric membrane 204, the one side away from contact component is provided with printing electrode thereon, by the outer of a direction
, can be because of deformation at it due to the polarization phenomena of internal charge when power acts on and deforms upon (including bending and telescopic shape change)
Electric charge is induced on printing electrode, piezoelectric membrane 204 is located at the centre of silica piston 202 and metal alloy retainer plate 203, thereon
Side is contacted with the bottom cambered surface of silica piston 204, and contact site is also cambered surface, and lower section is fixed by metal alloy retainer plate 203, in
Between unlocked part there is space with lower rubber band 205, be easy to the flexible of deformation.When the stress of piezoelectric membrane 204 produces deformation
When, it can produce electric charge, and the quantity of electric charge is relevant with the size of deformation, that is to say, that the quantity of electric charge indirectly with silica piston 202 by
The power of the microseismic activity arrived is relevant.Therefore, piezoelectric membrane 204 is used to produce deformation after by the effect of the pressure of silica piston 202
And electric charge is induced on printing electrode.
Metal alloy lead ring or plastic cement lead ring 206, it is the metal alloy lead ring or plastic cement being arranged on around contact area
Lead ring.
Specifically, metal alloy lead ring or plastic cement lead ring 206 are arranged on around silica piston 202.In Fig. 2, silica gel is lived
Plug 202 is structure one thin, that other end is thick, metal alloy lead ring or plastic cement lead ring 206 be specifically located at silica piston 202 compared with
Thin one and the surrounding of close thickness boundary interface.On the one hand, metal alloy lead ring or the inner ring surface of plastic cement lead ring 206 are smooth,
Silica piston 202 can be reduced in folding process because of the resistance that friction is produced, be easy to silica piston 202 to move freely,
Enhance the sensitivity of sensor.On the other hand, metal alloy lead ring or plastic cement lead ring 206 can also limit silica piston 202
Recoil position, it is to avoid during long-term use, silica piston 202 because the screen resilience effect of piezoelectric membrane damage rubber strip or
Conductive fabric.
As a kind of replacing structure of modification of the present embodiment, contact electrode is below at least one contact component
On one piezoelectric membrane, piezoelectric membrane on the one side away from contact component the position of correspondence contact component provided with printing electrode,
Print electrode and position identical with the quantity of contact component correspondence.Specifically, printing electrode on piezoelectric membrane is not uniform
Painting is located on whole piezoelectric membrane, but is coated with the side of the position of piezoelectric membrane corresponding silica gel piston and remote silica piston
Print electrode, other structures with it is completely the same shown in Fig. 2, its sense principle it is also consistent；The piezoelectric membrane is lived positioned at silica gel
Part and the bottom arc shape of silica piston below plug are consistent, i.e., the corresponding bottom printed electrode also with silica piston
Portion's arc shape is consistent.
The contact sound detection sensor that the present embodiment is provided, contact area is contacted with monitored target, monitored pair
The microseismic activity of elephant makes the stress and deformation of silica piston 202, and silica piston 202 produces downward power and forced in the middle of piezoelectric membrane 204 not
The position fixed by metal alloy retainer plate 203 produces deformation, and piezoelectric membrane 204 induces electricity because of deformation on printing electrode
Lotus, passes through the electric charge Parallel opertation for producing multiple sensing contact points.
The contact sound detection sensor provided using the present embodiment, can when the microseismic activity effect by sound
Make silica piston stress, make piezoelectric membrane by active force, and induce electric charge on printing electrode and export electric signal, realize
To the sensing of faint sound；Because loss of the sound in fixed conducting medium is less than aerial loss, Er Qieben
Middle hanging similar arch bridge is fixed on contact electrode both sides in the structure of application, thus by slight vibrations in the middle of contact electrode,
It may result in bottom center portion deformation, and the output charge on electrode.The contact sound provided using the utility model is visited
Sensor is surveyed, faint voice signal can be sensed by directly being contacted with sensed subject surface, such as sign sound, carried significantly
Rise the sensitivity of sound sensing.The contact sound detection sensor can be used for monitoring sign sound, realize the microseism of sign sound
Dynamic information is converted to electric signal output, realizes the collection of the faint sign message number to being difficult monitoring, and the telecommunications of output
Number be easier analyze, the acquisition of information vital sign information that can be provided according to electric signal.The contact sound that the present embodiment is provided
In sound detection sensor, the display and design of multiple sensing contact points can increase effective monitoring area, it is to avoid some existing sound
Sound sensor needs artificial multiple movable sensor to go to obtain optimal test position.
Fig. 3 is that the cross section structure of the contact sound detection sensor in A-A directions another embodiment shown in Fig. 1 shows
It is intended to.The contact sound detection sensor that Fig. 3 is provided is made using triboelectricity principle.As shown in figure 3, the contact
Sound detection sensor includes：Conductive fabric 301, PDMS pistons 302, metal electrode 303, rubber strip 304, metal alloy lead ring or
Plastic cement lead ring 305.
In the present embodiment, the bottom of contact component is cambered surface, and cambered surface is convex-concave surface, and the contact component can be in external force
In the presence of move back and forth, it is made up of PDMS, is referred to as PDMS pistons 302 in the present embodiment, and contact electrode is positioned at PDMS
The metal electrode 303 of the lower section of piston 302, contact area is arranged on the other end of the contact component away from contact electrode, is specially
The upper surface that PDMS pistons 302 expose, i.e., the position that microseismic activity is acted in figure；For convenience of describing, by the conductive fabric shown in Fig. 3
What the 301st, PDMS pistons 302, metal electrode 303, rubber strip 304, metal alloy lead ring or plastic cement lead ring 305 were constituted is collectively referred to as
One sensing contact point, a contact sound detection sensor can be made up of multiple sensing contact points display.
In Fig. 3, conductive fabric 301 is led for wrapping up metal electrode 303 on its interior, rubber strip 304 and metal alloy
Ring or plastic cement lead ring 305, and portion envelops PDMS pistons 302 make its part expose to form contact area.Conductive fabric 301 is covering
Each structure of sensing contact point and only expose contact area be advisable, the interference for shielding external signal.
Rubber strip 304 is in conductive fabric internal package metal electrode 303 and metal alloy lead ring or plastic cement on its interior
Lead ring 305, and portion envelops PDMS pistons 302 make its part expose to form contact area.Rubber strip 304 has flexibility, can carry
Contact sound detection sensor and the sense of touch of human contact are risen, more pro-skin is comfortable.
A kind of PDMS pistons 302, PDMS (polydimethylsiloxane), dimethyl silicone polymer, macromolecule is organic
Silicon compound, PDMS is the most widely used organic polymer material based on silicon.In the present embodiment, PDMS pistons
The surface of 302 tops laminating contact monitored site, and exposure part outside is referred to as contact area, the contact area directly with
Monitored target is contacted.
Fig. 4 is the regional area enlarged diagram of the contact sound detection sensor cross section structure shown in Fig. 3.Such as Fig. 4
Shown, the bottom cambered surface of PDMS pistons 302 is designed as rough rough surface, under field conditions (factors), the cambered surface 401 of protrusion with
Metal electrode 303 is contacted, and recessed cambered surface 402 is separated with metal electrode 303.When the sound microseismic activity of monitored site is transmitted to
During PDMS pistons 302, the bottom cambered surface of PDMS pistons 302 is forced to be deformed with vibrations, so that PDMS pistons 302 are recessed
The metal electrode 303 of cambered surface 402 and bottom be changed into contacting and produced friction from separating, and can with vibrations continue without
Disconnected is separating the conversion between the state contacted, and the process of this CONTACT WITH FRICTION will make metal electrode 303 export induced electricity
Lotus.
The quantity of metal electrode 303, metal electrode and contact component (i.e. PDMS pistons) is identical and position is corresponding.Work as PDMS
When piston is multiple, a metal electrode is correspondingly arranged below each PDMS pistons.Multiple metal electrode parallel connections form contact
One signal output part of sound detection sensor；Conductive fabric as contact sound detection sensor another signal output
End.
Specifically, metal electrode 303 is overall curved, and cambered surface flexibility and the bottom cambered surface phase of PDMS pistons 302
Match somebody with somebody；Make metal electrode 303 because of the recessed cambered surface in the bottom of PDMS pistons 302 and the friction process of the contact separation of metal electrode 303
Produce electric charge；Each metal electrode 303 is corresponding with a PDMS piston 302, i.e. the number of metal electrode 303 and PDMS pistons 302
Amount is consistent, and bottom arc sizes of the size also with PDMS pistons 302 of metal electrode 303 match, can cover PDMS
The bottom cambered surface of piston 302 is advisable；Metal electrode 303 is used for the microseismic activity by the bottom arc deformation of PDMS pistons 302 is forced
Power is converted to electric signal output, and the factor such as the quantity of electric charge and size of power is related, therefore the electricity that can be exported by metal electrode 303
Signal weighs the features such as the intensity and/or frequency of the microseismic activity of sound.
Metal alloy lead ring or plastic cement lead ring 305, it is the metal alloy lead ring or plastic cement being arranged on around contact area
Lead ring.
Specifically, metal alloy lead ring or plastic cement lead ring 305 are arranged on around PDMS pistons 302.In Fig. 3, PDMS lives
Plug 302 is structure one thin, that other end is thick, metal alloy lead ring or plastic cement lead ring 305 be specifically located at PDMS pistons 302 compared with
Thin one and the surrounding of close thickness boundary interface.On the one hand, metal alloy lead ring or the inner ring surface of plastic cement lead ring 305 are smooth,
PDMS pistons 302 can be reduced in folding process because of the resistance that friction is produced, be easy to PDMS pistons 302 to move freely,
Enhance the sensitivity of sensor.On the other hand, metal alloy lead ring or plastic cement lead ring 305 can also limit PDMS pistons 302
Recoil position, it is to avoid during long-term use, PDMS pistons 302 damage rubber strip or conductive fabric because of screen resilience effect.
As a kind of replacing structure of modification of the present embodiment, contact electrode can be under at least one contact component
One metal electrode film of side.Specifically, contact electrode is thin for one whole metal electrode below all PDMS pistons
Film, other structures with it is completely the same shown in Fig. 3, its sense principle it is also consistent；The whole metal electrode film is located at PDMS
Part and the bottom arc shape of PDMS pistons below piston are consistent.
The contact sound detection sensor that the present embodiment is provided, contact area is contacted with monitored target, monitored pair
The microseismic activity of elephant makes the stress and deformation of PDMS pistons 302, and PDMS pistons 302 produce downward power and force metal electrode 303 because of PDMS
The recessed cambered surface in the bottom of piston 302 and the friction process of the contact separation of metal electrode 303 produce electric charge, and then multiple contacts are passed
The electric charge Parallel opertation that sense point is produced.
The contact sound detection sensor provided using the present embodiment, can when the microseismic activity effect by sound
Make PDMS piston stress, the recessed cambered surface of PDMS piston bases is rubbed with metal electrode and produce electric charge output, realize to faint
The sensing of sound；Because loss of the sound in fixed conducting medium is less than aerial loss.Utilize the utility model
The contact sound detection sensor of offer, faint sound letter can be sensed by directly being contacted with sensed subject surface
Number, such as sign sound greatly promotes the sensitivity of sound sensing.The contact sound detection sensor can be used for monitoring sign
The microseismic activity information of sign sound is converted to electric signal output by sound, realization, is realized (newborn to the faint sign sound for being difficult monitoring
Youngster and infant physical sign sound) signal collection, and output electric signal be easier analysis, the letter that can be provided according to electric signal
Breath obtains vital sign information.In the contact sound detection sensor that the present embodiment is provided, the display of multiple sensing contact points
Design can increase effective monitoring area, it is to avoid existing number voice sensor needs artificial multiple movable sensor to go to obtain
Take optimal test position.
Fig. 5 is that the cross section structure of the contact sound detection sensor in A-A directions another embodiment shown in Fig. 1 shows
It is intended to.What the contact sound detection sensor that Fig. 5 is provided was made also with triboelectricity principle.With the structure shown in Fig. 3
Unlike, it is specially to be located at one that is coated with metal electrode 503 below at least one contact component that electrode is contacted in Fig. 5
Metal composite thin film 504.In addition, conductive fabric 501, PDMS pistons 502, rubber strip 505 and metal alloy lead ring or plastic cement
The structure and relative position relation of lead ring 506 are same as shown in Figure 3, will not be repeated here.
In the present embodiment, the bottom cambered surface of PDMS pistons 502 is designed as rough rough surface, under field conditions (factors),
The side surface that the cambered surface of protrusion is not coated with metal electrode with metal composite thin film 504 is contacted, and recessed cambered surface and metal composite
Film 504 is not coated with the side surface separation of metal electrode.When the sound microseismic activity of monitored site is transmitted to PDMS pistons 502
When, force the bottom cambered surface of PDMS pistons 502 to be deformed with vibrations, so that the recessed cambered surface of PDMS pistons 502 is with
The metal composite thin film 504 in portion is not coated with a side surface of metal electrode and is changed into contacting and is produced friction from separating, and can be with
Continuing for vibrations and constantly separating the conversion between the state contacted, the process of this CONTACT WITH FRICTION makes metal electrode
503 produce charge inducing.
The quantity of metal electrode 503, metal electrode and contact component (i.e. PDMS pistons) is identical and position is corresponding.Work as PDMS
When piston is multiple, another side surface of correspondence metal composite thin film 504 is coated with metal electrode below each PDMS pistons.It is many
Individual metal electrode parallel connection forms a signal output part of contact sound detection sensor；Conductive fabric is visited as contact sound
Survey another signal output part of sensor.
Metal electrode 503 is applied and is located on metal composite thin film 504, and corresponding with the position of PDMS pistons 502, and overall is in arc
Shape, and cambered surface flexibility and the bottom cambered surface of PDMS pistons 502 match；Because of the recessed cambered surface in the bottom of PDMS pistons 502 and metal
The friction process of the contact separation of laminated film 504 and make metal electrode 503 produce electric charge；Each metal electrode 503 and one
The correspondence of PDMS pistons 502, i.e. metal electrode 503 are consistent with the quantity of PDMS pistons 502, and metal electrode 503 size also with
The bottom arc sizes of PDMS pistons 302 match, and are advisable with the bottom cambered surface that can cover PDMS pistons 502 indirectly；Metal
Electrode 503 is used to the power for the microseismic activity for forcing the bottom arc deformation of PDMS pistons 502 being converted to electric signal output, the quantity of electric charge with
The factors such as the size of power are related, therefore the electric signal that can be exported by metal electrode 503 weighs the intensity of the microseismic activity of sound
And/or the feature such as frequency.
As a kind of replacing structure of modification of the present embodiment, contact electrode can be under at least one contact component
One metal composite thin film of side, and all it is coated with metal electrode on whole metal composite thin film.Specifically, metal electrode is uniform
Painting is located on whole metal composite thin film, other structures with it is completely the same shown in Fig. 3, produce electric charge principle it is also consistent；Should
Part and the bottom arc shape of PDMS piston of the whole metal composite thin film below PDMS pistons are consistent.
The contact sound detection sensor that the present embodiment is provided, contact area is contacted with monitored target, monitored pair
The microseismic activity of elephant makes the stress and deformation of PDMS pistons 502, and PDMS pistons 502 produce downward power and forced on metal composite thin film 504
The metal electrode 503 being coated with is rubbed because the recessed cambered surface in the bottom of PDMS pistons 502 and the contact separation of metal composite thin film 504
Journey produces charge inducing, and then the electric charge Parallel opertation that multiple sensing contact points are produced.
The contact sound detection sensor provided using the present embodiment, can when the microseismic activity effect by sound
Make PDMS piston stress, the side surface that the recessed cambered surface of PDMS piston bases is not coated with metal electrode with metal composite thin film is rubbed
Wipe and produce electric charge output, realize the sensing to faint sound；Because loss of the sound in fixed conducting medium is less than
Loss in air, the contact sound detection sensor provided using the utility model, by straight with sensed subject surface
Contact can sense faint voice signal, and such as sign sound greatly promotes the sensitivity of sound sensing.The contact sound
Detection sensor can be used for monitoring sign sound, and the microseismic activity information of sign sound is converted to electric signal output, realized pair by realization
The collection of the faint sign message number of monitoring is difficult, and the electric signal of output is easier analysis, can be provided according to electric signal
Acquisition of information vital sign information.In the contact sound detection sensor that the present embodiment is provided, multiple sensing contact points
Display and design can increase effective monitoring area, it is to avoid existing number voice sensor needs artificial multiple movable sensor
Go to obtain optimal test position.
It should be appreciated by those skilled in the art that the apparatus structure shown in accompanying drawing or embodiment is only schematical, table
Show logical construction.The module wherein shown as separating component is probably or may not be physically separate, is used as module
The part of display is probably or may not be physical module.
Finally it should be noted that be：Listed above is only specific embodiment of the utility model, certain this area
Technical staff can be modified and modification to the utility model, if these modifications and variations belong to the utility model right and wanted
Ask and its equivalent technologies within the scope of, be considered as protection domain of the present utility model.
Claims (17)
1. a kind of contact sound detection sensor, it is characterised in that including：Conductive fabric, at least one contact component and position
Contact electrode below at least one described contact component；
Wherein, at least one described contact component and the contact electrode are wrapped up by the conductive fabric, at least one described contact
Element portion exposes to form contact area；
The contact electrode and two signal output parts that the conductive fabric is the contact sound detection sensor.
2. contact sound detection sensor according to claim 1, it is characterised in that the bottom of the contact component is
Cambered surface, the contact component can be moved back and forth in the presence of external force.
3. contact sound detection sensor according to claim 2, it is characterised in that the contact component is by silica gel system
Into.
4. contact sound detection sensor according to claim 2, it is characterised in that the contact component is by PDMS systems
Into；The bottom cambered surface of the contact component is convex-concave surface.
5. the contact sound detection sensor according to claim 1 or 2 or 3, it is characterised in that the contact electrode is
One side away from contact component on a piezoelectric membrane below at least one described contact component, the piezoelectric membrane
It is provided with and prints electrode.
6. the contact sound detection sensor according to claim 1 or 2 or 3, it is characterised in that the contact electrode is
One side away from contact component on a piezoelectric membrane below at least one described contact component, the piezoelectric membrane
The position of upper correspondence contact component, which is provided with, prints electrode；And the position pair identical with the quantity of the contact component of printing electrode
Should.
7. contact sound detection sensor according to claim 5, it is characterised in that corresponding in each contact component
Piezoelectric membrane lower position is provided with metal retainer plate, and each contact component is bonded in piezoelectric membrane, metal retainer plate
Together.
8. the contact sound detection sensor according to claim 1 or 2 or 4, it is characterised in that the contact electrode is
Metal electrode；The metal electrode is identical with the quantity of the contact component and position is corresponding.
9. the contact sound detection sensor according to claim 1 or 2 or 4, it is characterised in that the contact electrode is
A metal electrode film below at least one described contact component.
10. the contact sound detection sensor according to claim 1 or 2 or 4, it is characterised in that the contact electrode
For a metal composite thin film below at least one described contact component.
11. the contact sound detection sensor according to claim 1 or 2 or 4, it is characterised in that the contact electrode
For the metal composite thin film for being coated with metal electrode below at least one described contact component, the metal electrode
And position identical with the quantity of contact component correspondence.
12. contact sound detection sensor according to claim 8, it is characterised in that the metal electrode be it is multiple,
Multiple metal electrode parallel connections form a signal output part of the contact sound detection sensor.
13. contact sound detection sensor according to claim 11, it is characterised in that the metal electrode is many
Individual, multiple metal electrode parallel connections form a signal output part of the contact sound detection sensor.
14. contact sound detection sensor according to claim 1, it is characterised in that also include：Inside conductive fabric
At least one described contact component of parcel and the contact electrode simultaneously make at least one described contact component part expose to be formed and connect
Touch the rubber strip in region.
15. contact sound detection sensor according to claim 1, it is characterised in that also include：It is arranged on described connect
Touch the metal alloy lead ring or plastic cement lead ring around region.
16. contact sound detection sensor according to claim 1, it is characterised in that：The contact area is arranged on
The other end of the contact component away from contact electrode.
17. a kind of contact sound sensing device, it is characterised in that including any one of at least one claim 1-16
Contact sound detection sensor and encapsulation pad, it is internal that at least one contact sound detection sensor is arranged on encapsulation pad
Or surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198083.9U CN206593752U (en) | 2017-03-02 | 2017-03-02 | Contact sound detection sensor and contact sound sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198083.9U CN206593752U (en) | 2017-03-02 | 2017-03-02 | Contact sound detection sensor and contact sound sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593752U true CN206593752U (en) | 2017-10-27 |
Family
ID=60126748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198083.9U Active CN206593752U (en) | 2017-03-02 | 2017-03-02 | Contact sound detection sensor and contact sound sensing device |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477887A (en) * | 2019-09-18 | 2019-11-22 | 浙江理工大学 | A kind of monitoring device of non-invasive long-range apnea syndrome |
| CN113295192A (en) * | 2021-05-18 | 2021-08-24 | 南京大学 | Contact type force and sound composite sensor |
| CN113721291A (en) * | 2021-08-10 | 2021-11-30 | 北京大学深圳研究生院 | Integrated earth sound sensing system and method |
| WO2024004823A1 (en) * | 2022-07-01 | 2024-01-04 | 株式会社村田製作所 | Acoustic sensor and stethoscope |
-
2017
- 2017-03-02 CN CN201720198083.9U patent/CN206593752U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477887A (en) * | 2019-09-18 | 2019-11-22 | 浙江理工大学 | A kind of monitoring device of non-invasive long-range apnea syndrome |
| CN113295192A (en) * | 2021-05-18 | 2021-08-24 | 南京大学 | Contact type force and sound composite sensor |
| CN113721291A (en) * | 2021-08-10 | 2021-11-30 | 北京大学深圳研究生院 | Integrated earth sound sensing system and method |
| WO2024004823A1 (en) * | 2022-07-01 | 2024-01-04 | 株式会社村田製作所 | Acoustic sensor and stethoscope |
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