CN105526999A - Electronic belt scale weighing instrument touch button - Google Patents

Electronic belt scale weighing instrument touch button Download PDF

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Publication number
CN105526999A
CN105526999A CN201511032280.5A CN201511032280A CN105526999A CN 105526999 A CN105526999 A CN 105526999A CN 201511032280 A CN201511032280 A CN 201511032280A CN 105526999 A CN105526999 A CN 105526999A
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CN
China
Prior art keywords
infrared light
weighing instrument
touch button
proof shell
flexible keypad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201511032280.5A
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Chinese (zh)
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CN105526999B (en
Inventor
王文清
田柏林
王巍
任安祥
任凤国
张春芝
陈耕
牛小铁
李萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING COAL MINING ELECTRIC EQUIPMENT TECHNICAL DEVELOPMENT Co Ltd
Beijing University of Technology
Original Assignee
BEIJING COAL MINING ELECTRIC EQUIPMENT TECHNICAL DEVELOPMENT Co Ltd
Beijing University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by BEIJING COAL MINING ELECTRIC EQUIPMENT TECHNICAL DEVELOPMENT Co Ltd, Beijing University of Technology filed Critical BEIJING COAL MINING ELECTRIC EQUIPMENT TECHNICAL DEVELOPMENT Co Ltd
Priority to CN201511032280.5A priority Critical patent/CN105526999B/en
Publication of CN105526999A publication Critical patent/CN105526999A/en
Application granted granted Critical
Publication of CN105526999B publication Critical patent/CN105526999B/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G11/00Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
    • G01G11/003Details; specially adapted accessories

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Electronic Switches (AREA)

Abstract

The invention discloses an electronic belt scale weighing instrument touch button, comprising an infrared photosensitive circuit arranged inside an internal cavity of an explosion-proof shell and an elastic key used for changing the intensity of light signals shot into the infrared photosensitive circuit during deformation, wherein the elastic key is arranged on the outer side of the explosion-proof shell and positioned on the outer wall of a toughened glass window of the explosion-proof shell, and an infrared isolating membrane for preventing infrared stray light outside the explosion-proof shell from being shot into the infrared photosensitive circuit inside the explosion-proof shell is further attached to the outer wall of the toughened glass window; and the infrared isolating membrane covers the elastic key. By adopting the electronic belt scale weighing instrument touch button, an operator can control a weighing instrument in the explosion-proof shell outside the explosion-proof shell. Because the infrared isolating membrane is attached to the elastic key, stray infrared light outside the explosion-proof shell can be prevented from entering the explosion-proof shell, and then malfunctions of the electronic belt scale weighing instrument can be prevented.

Description

Belted electronic balance weighing instrument touch button
Technical field
The present invention relates to touch key-press technology, particularly relate to a kind of belted electronic balance weighing instrument touch button.
Background technology
Along with the construction of colliery Modern Pit, increasing electrical equipment is used to underground coal mine.And the electrical equipment of these borehole operation must have explosion prevention function.In order to control these antiknock devices, need control knob to be installed on flameproof enclosure realize.Capacitive sensing touch button is compared with mechanical button, owing to not needing perforate on flame proof shell, there is no between button spindle and copper sheathing mechanical wear after long-term use, welcome that security height is just more and more subject to coal mine equipment manufacturer, and promote on explosion-proof electric apparatus product gradually, application.
The button circuit of the capacitive sensing touch button of the electrical apparatus for explosive atmospheres use of underground coal mine of the prior art is all contained in flame proof shell, and do not have electric wiring and element outside shell, security performance is good.But underground coal mine runs a large amount of jumbo electrical equipment.If operator is when flame proof shell operates electrical equipment by the tempered glass of 10mm thickness by capacitive sensing touch button outward, by chance receive the impact of the serious electromagnetic interference (EMI) produced because of large-capacity electrical apparatus start and stop, just likely cause the misoperation of electrical apparatus for explosive atmospheres.
Summary of the invention
The object of this invention is to provide a kind of belted electronic balance weighing instrument touch button, utilize infrared light not by the feature of the electromagnetic interference (EMI) such as induction current and electrostatic, the impact of the electromagnetic interference (EMI) produced when the capacitive sensing touch button solved under prior art is subject to the start and stop of underground coal mine large-capacity electrical apparatus, likely can cause the problem of the misoperation of explosion-proof electronic belt balance weighing instrument.
For achieving the above object, the invention provides a kind of belted electronic balance weighing instrument touch button, it is characterized in that, comprising:
Infrared light sensor circuit, for changing the flexible keypad injecting light signal strength in described infrared light sensor circuit when there is deformation;
Wherein, described flexible keypad is installed on the outside of flame proof shell and is positioned on the outer wall of the tempered glass form of described flame proof shell, and described infrared light sensor circuit is arranged in the cavity of tempered glass form inside of described flame proof shell;
Also comprise: for the infrared light barrier film preventing the infrared parasitic light outside flame proof shell from injecting the infrared light sensor circuit in described flame proof shell;
The outside that described infrared light barrier film is attached at the tempered glass form of described flame proof shell covers above described flexible keypad
Belted electronic balance weighing instrument touch button as above, preferably, described infrared light barrier film is attached at the outside surface of described flexible keypad.
Belted electronic balance weighing instrument touch button as above, preferably, described flexible keypad is the young sheet of circular pot, and the young sheet of described circular pot has preset curvature, to make the young sheet of described circular pot for concave mirror before generation deformation, is convex mirror after generation deformation.
Belted electronic balance weighing instrument touch button as above, preferably, described infrared light barrier film is PVC material.
Belted electronic balance weighing instrument touch button as above, preferably, described flexible keypad is coated with infrared light reflecting film towards the side of described infrared light sensor circuit.
Belted electronic balance weighing instrument touch button as above, preferably, the material of described infrared light reflecting film is chromium.
Belted electronic balance weighing instrument touch button as above, preferably, described infrared light sensor circuit comprises: for emitting parallel light signal optical transmitting set, for receive the optical receiver of described light signal that described flexible keypad reflects when there is deformation and be electrically connected with described optical transmitting set, for described light signal being converted to the control chip of electric signal, the surface of emission of described optical transmitting set and the receiving plane of described optical receiver are all parallel with described tempered glass form, and the described surface of emission and described receiving plane are all towards the inside surface of described flexible keypad.
Belted electronic balance weighing instrument touch button as above, preferably, also comprises: the pilot lamp being electrically connected, controlling for the indicator signal sent according to described control chip opening and closing with described control chip.
Belted electronic balance weighing instrument touch button as above, preferably, not electrical connection between described flexible keypad and described infrared light sensor circuit.
From above technical scheme, belted electronic balance weighing instrument touch button provided by the invention, have employed infrared light sensor circuit, because infrared light is not by the electromagnetic interference (EMI) such as induction current and electrostatic, thus overcome the impact of the electromagnetic interference (EMI) produced when capacitive sensing touch button in prior art is subject to the start and stop of underground coal mine large-capacity electrical apparatus, likely can cause the problem of the misoperation of explosion-proof electronic belt balance weighing instrument.In addition, belted electronic balance weighing instrument touch button of the present invention has also been sticked infrared light barrier film on the outer wall at tempered glass form, thus can prevent outside spuious infrared light from entering infrared light sensor circuit, additionally use flexible keypad, due to the stable screen resilience that flexible keypad has, can after pressing self-return, thus the tactile feedback of high-quality can be provided to operator, add the truly feels that operator manipulates button, decrease maloperation, thus further can prevent the problem of the misoperation of the touch button of electrical apparatus for explosive atmospheres.
Accompanying drawing explanation
The structural representation of the belted electronic balance weighing instrument touch button that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of state of the belted electronic balance weighing instrument touch button that Fig. 2 provides for the embodiment of the present invention.
Reference numeral:
1-infrared light sensor circuit; 2-flexible keypad; 3-tempered glass form;
4-infrared light barrier film; 11-optical transmitting set; 12-optical receiver;
5-flame proof shell.
Embodiment
Embodiment one
The structural representation of the belted electronic balance weighing instrument touch button that Fig. 1 provides for the embodiment of the present invention, the structural representation of the another kind of state of the belted electronic balance weighing instrument touch button that Fig. 2 provides for the embodiment of the present invention, as shown in Figure 1, this belted electronic balance weighing instrument touch button comprises: be arranged at the infrared light sensor circuit 1 in the inner side cavity of flame proof shell 5 and the flexible keypad 2 for changing the light signal strength injected in infrared light sensor circuit 1 when there is deformation.
Wherein, flexible keypad 2 is installed on the outside of flame proof shell 5 and is positioned on the outer wall of tempered glass form 3 of flame proof shell 5, the outer wall of tempered glass form 5 is also sticked for the infrared light barrier film 4 preventing the infrared parasitic light outside flame proof shell 5 from injecting the infrared light sensor circuit 1 in flame proof shell 5.
Optionally, infrared light barrier film 4 is attached at the position corresponding with infrared light sensor circuit 1 on the outer wall of tempered glass form 3.Concrete, infrared light barrier film 4 can be all provided with by the outer wall of tempered glass form 3, certainly, in order to cost-saving, also only the outer surface to corresponding tempered glass form 3 of infrared light sensor circuit 1 infrared light barrier film can be provided with.
Can replace, infrared light barrier film 4 can be attached at the inside of tempered glass form 3, but need to reserve default hole, matching of the position of this hole and shape and flexible keypad 2, can change light path to make flexible keypad 2 when there is deformation.Therefore, preferably, infrared light barrier film 4 can be located on the outer wall of tempered glass form 3, and infrared light barrier film 4 is attached at the outside surface of flexible keypad 2.
Certainly, infrared light barrier film 4 can the highly reflecting films of the infrared light of evaporation on tempered glass form 3, for example, infrared light barrier film 4 can be the tantalum pentoxide of evaporation at tempered glass form 3 outer wall and the multilayer complex films of silicon dioxide, this composite membrane infrared light has higher reflection coefficient, thus the button misoperation that the infrared light of the infrared light of the head lamp institute radiation that can prevent operating personnel from wearing when control instrument or solar radiation causes through tempered glass form 3.But flexible keypad 2 should arrange the inner side of infrared light barrier film 4, or, reserve the predeterminated position with the form fit of flexible keypad 2 when plated film, not at this predeterminated position plated film.
Or infrared light barrier film 4 is one deck blue flint glass, i.e. LAF2, and this blue flint glass only has the transmitance of about 30% for Infrared.
Wherein, the concrete principle of work of belted electronic balance weighing instrument touch button is as follows: flexible keypad 2 is when the original state do not pressed by operator, as shown in Figure 1, the infrared signal that flexible keypad 2 reflects cannot be received by infrared light sensor circuit 1, therefore, infrared light sensor circuit 1 exports high level, and the specific function controlling electrical apparatus for explosive atmospheres does not start, meanwhile, flexible keypad 2 operator hand externally applied forces by withdraw time can restPose rapidly.And when flexible keypad 2 is pressed by operator, as shown in Figure 2, because deformation occurs flexible keypad 2, the infrared signal that flexible keypad 2 reflects is changed original light path, thus reception can be responded to by infrared light sensor circuit 1, when the intensity of the Infrared that infrared photoinduction circuit receives exceedes certain threshold value, now infrared light sensor circuit 1 output low level, the specific function controlling electrical apparatus for explosive atmospheres starts.
Or, another control mode is, flexible keypad 2 is not when being pressed by operator, the infrared signal that flexible keypad 2 reflects can be received by infrared light sensor circuit 1, and when flexible keypad 2 is pressed by operator, the light path of the infrared signal that flexible keypad 2 reflects changes, therefore, infrared light sensor circuit 1 cannot receive the infrared signal that flexible keypad 2 reflects, and controls the startup or closed of the specific function of electrical apparatus for explosive atmospheres with this.In addition, not electrical connection between flexible keypad 2 and infrared light sensor circuit 1, completed the controlling functions of button completely by the reflection of light, do not have mechanical wear, security is high.
Infrared light sensor circuit 1, for when receiving infrared signal, is converted into digital electric signal, to control the closure or openness of the specific function of electrical apparatus for explosive atmospheres.
It should be noted that, only exemplaryly in Fig. 1 provide an infrared light sensor circuit 1 and a flexible keypad 2, but, infrared light sensor circuit 1 in the belted electronic balance weighing instrument touch button provided in the present embodiment, flexible keypad 2 can be multiple, to control the difference in functionality of electrical apparatus for explosive atmospheres.
The belted electronic balance weighing instrument touch button that the embodiment of the present invention provides, have employed infrared light sensor circuit, because infrared light is not by the electromagnetic interference (EMI) such as induction current and electrostatic, thus overcome the impact of the electromagnetic interference (EMI) produced when capacitive sensing touch button in prior art is subject to the start and stop of underground coal mine large-capacity electrical apparatus, likely can cause the problem of the misoperation of explosion-proof electronic belt balance weighing instrument.In addition, the belted electronic balance weighing instrument touch button of the present embodiment has also been sticked infrared light barrier film on the outer wall at tempered glass form, thus can prevent outside spuious infrared light from entering infrared light sensor circuit, additionally use flexible keypad, due to the stable screen resilience that flexible keypad has, can after pressing self-return, thus the tactile feedback of high-quality can be provided to operator, add the truly feels that operator manipulates button, decrease maloperation, thus further can prevent the problem of the misoperation of the touch button of electrical apparatus for explosive atmospheres.
Embodiment two
The present embodiment further explains explanation to above-described embodiment.In order to ensure that the light received can all be reflexed to infrared light sensor circuit 1 by flexible keypad 2, flexible keypad 2 is coated with infrared light reflecting film towards the side of infrared light sensor circuit 1, and the material of infrared light reflecting film is chromium.
As shown in Figure 1, the circular pot young sheet of flexible keypad 2 for having preset curvature, the young sheet of circular pot to the convex outer surfaces of tempered glass form 3, now, can regard young for circular pot sheet as a concave mirror when original state.And when the young sheet of the circular pot of operator presses, the young sheet of circular pot is to the outer surface depressions of tempered glass form 3, now the young sheet of circular pot can regard a convex mirror as.Because the young sheet of pot has stable screen resilience, can guarantee flexible keypad 2 can the hand externally applied forces of operator by withdraw time can restPose rapidly.In addition, be coated with infrared light reflecting film at the young sheet 2 of pot towards the side of infrared light sensor circuit 1, can better reflects infrared light, optionally, the material of infrared light reflecting film is chromium.
Optionally, the touch sense for cost and flexible keypad 2 is considered, infrared light barrier film 4 is polyvinylchloride (Polyvinylchloride is called for short PVC) material, and the infrared light barrier film 4 of PVC material is attached at the outside surface of flexible keypad 2.
In addition, as shown in Figure 1 or 2, infrared light sensor circuit 1 is comprised: for emitting parallel light signal optical transmitting set 11, for receive the optical receiver 12 of described light signal that described flexible keypad 2 reflects when there is deformation and be electrically connected with described optical transmitting set, for described light signal being converted to the control chip (not shown) of electric signal.Control chip is used for light signal being converted to digital electric signal, i.e. the low and high level signal of " 0 " " 1 ".
Optionally, the surface of emission of optical transmitting set 11 and the receiving plane of optical receiver 12 all parallel with tempered glass form and the described surface of emission and described receiving plane are all towards the inside surface of flexible keypad.Now, cooperatively interact between the preset curvature of the young sheet of optical transmitting set 11, optical receiver 12 and circular pot, when making circular pot young sheet that elastic deformation not occur, the infrared light that optical transmitting set 11 sends is via the reflection of the young sheet of circular pot, cannot receive by optical receiver 12, and when operator triggers the young sheet of circular pot, when making it that deformation occur, the infrared light that optical transmitting set 11 is launched is via the young sheet reflection of the circular pot after deformation, can receive by optical receiver 12, thus the startup of the specific function of trigging control electrical apparatus for explosive atmospheres or closed.
Optionally, when regulating the distance between optical transmitting set 11 and the young sheet of circular pot, when the distance of the two is very near, the light that then optical transmitting set 11 sends can be considered parallel rays, because the young sheet of circular pot was equivalent to concave mirror before generation deformation, thus the effect of convergence can be played to parallel rays, if optical receiver 12 to be arranged on the convergent point of light, then the light intensity of reflection ray that optical receiver 12 receives strengthens; The young sheet of circular pot is equivalent to convex mirror after generation deformation, thus parallel rays is played to the effect of dispersing, thus the weakened of reflection ray that receives of optical receiver 12.The power of light intensity received by optical receiver 12 can control the startup or closed of the specific function of electrical apparatus for explosive atmospheres.
Certainly, the surface of emission of optical receiver and/or the receiving plane of optical transmitting set also can be not parallel with tempered glass form, as long as ensure optical transmitting set 11, startup or closed that angle and distance between optical receiver 12 and flexible keypad 2 cooperatively interacts the specific function that can control electrical apparatus for explosive atmospheres.
Because conditions down-hole is dim, optionally, the belted electronic balance weighing instrument touch button that the present embodiment provides also comprises: the pilot lamp being electrically connected, controlling for the indicator signal sent according to control chip opening and closing with control chip.For example, pilot lamp can be used to refer to the specific function whether flexible keypad 2 triggers electrical apparatus for explosive atmospheres.
The belted electronic balance weighing instrument touch button that the embodiment of the present invention provides, not only can prevent the problem of the misoperation of the touch button of electrical apparatus for explosive atmospheres, and due to the circular pot young sheet of flexible keypad 2 for having preset curvature, the young sheet of circular pot is concave mirror before generation deformation, be convex mirror after generation deformation, therefore, the light intensity of the young sheet of circular pot by receiving convergence or the disperse function change optical receiver 12 of directional light, increase the discrimination of infrared light sensor circuit 1, namely the accuracy of whole belted electronic balance weighing instrument touch button when controlling is added, and because the young sheet of circular pot has certain curvature, even if therefore under pitch-dark environment, also handled easily person perception can be touched, easy to use.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, the ordinary skill passenger of this area is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (9)

1. a belted electronic balance weighing instrument touch button, is characterized in that, comprising:
Be arranged at the infrared light sensor circuit in the inner side cavity of flame proof shell and the flexible keypad for changing the light signal strength injected in described infrared light sensor circuit when there is deformation;
Wherein, described flexible keypad is installed on the outside of described flame proof shell and is positioned on the outer wall of the tempered glass form of described flame proof shell, the outer wall of described tempered glass form is also sticked for the infrared light barrier film preventing the infrared parasitic light outside flame proof shell from injecting the infrared light sensor circuit in described flame proof shell;
Described infrared light barrier film covers above described flexible keypad.
2. belted electronic balance weighing instrument touch button according to claim 1, is characterized in that, described flexible keypad is coated with infrared light reflecting film towards the side of described infrared light sensor circuit.
3. belted electronic balance weighing instrument touch button according to claim 2, it is characterized in that, described flexible keypad is the young sheet of circular pot, and the young sheet of described circular pot has preset curvature, to make the young sheet of described circular pot for concave mirror before generation deformation, be convex mirror after generation deformation.
4. belted electronic balance weighing instrument touch button according to claim 1, it is characterized in that, described infrared light barrier film is attached at the outside surface of described flexible keypad.
5. belted electronic balance weighing instrument touch button according to claim 1, is characterized in that, described infrared light barrier film is PVC material.
6. belted electronic balance weighing instrument touch button according to claim 2, is characterized in that, the material of described infrared light reflecting film is chromium.
7. belted electronic balance weighing instrument touch button according to claim 1, it is characterized in that, described infrared light sensor circuit comprises: for the optical transmitting set of emitting parallel light signal, for receiving the optical receiver of described light signal that described flexible keypad reflects when there is deformation and being electrically connected with described optical transmitting set, for described light signal being converted to the control chip of electric signal, the surface of emission of described optical transmitting set and the receiving plane of described optical receiver are all parallel with described tempered glass form, and the described surface of emission and described receiving plane are all towards the inside surface of described flexible keypad.
8. belted electronic balance weighing instrument touch button according to claim 7, is characterized in that, also comprise: the pilot lamp being electrically connected, controlling for the indicator signal sent according to described control chip opening and closing with described control chip.
9. belted electronic balance weighing instrument touch button according to claim 1, is characterized in that, not electrical connection between described flexible keypad and described infrared light sensor circuit.
CN201511032280.5A 2015-12-31 2015-12-31 Belted electronic balance weighing instrument touch button Active CN105526999B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201511032280.5A CN105526999B (en) 2015-12-31 2015-12-31 Belted electronic balance weighing instrument touch button

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CN201511032280.5A CN105526999B (en) 2015-12-31 2015-12-31 Belted electronic balance weighing instrument touch button

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CN105526999A true CN105526999A (en) 2016-04-27
CN105526999B CN105526999B (en) 2017-12-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108615635A (en) * 2018-07-06 2018-10-02 东莞微感电子技术有限公司 A kind of pressing control module of piezoelectric transducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2922287Y (en) * 2005-09-15 2007-07-11 邹定锦 Touch keying system
CN201191355Y (en) * 2008-02-25 2009-02-04 陈伟山 Multi-point object touch screen apparatus
CN101821703A (en) * 2007-08-03 2010-09-01 感知像素股份有限公司 Multi-touch sensing through frustrated total internal reflection
US20140055414A1 (en) * 2012-08-22 2014-02-27 Hyundai Motor Company Touch screen using infrared ray, and touch recognition apparatus and touch recognition method for touch screen
CN205373837U (en) * 2015-12-31 2016-07-06 北京工业职业技术学院 Electronic belt conveyor scale instrument touching button that weighs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2922287Y (en) * 2005-09-15 2007-07-11 邹定锦 Touch keying system
CN101821703A (en) * 2007-08-03 2010-09-01 感知像素股份有限公司 Multi-touch sensing through frustrated total internal reflection
CN201191355Y (en) * 2008-02-25 2009-02-04 陈伟山 Multi-point object touch screen apparatus
US20140055414A1 (en) * 2012-08-22 2014-02-27 Hyundai Motor Company Touch screen using infrared ray, and touch recognition apparatus and touch recognition method for touch screen
CN205373837U (en) * 2015-12-31 2016-07-06 北京工业职业技术学院 Electronic belt conveyor scale instrument touching button that weighs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108615635A (en) * 2018-07-06 2018-10-02 东莞微感电子技术有限公司 A kind of pressing control module of piezoelectric transducer
CN108615635B (en) * 2018-07-06 2023-10-13 东莞微感电子技术有限公司 Press control module of piezoelectric sensor

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