CN101738208B - Sensor - Google Patents
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- CN101738208B CN101738208B CN2008101745054A CN200810174505A CN101738208B CN 101738208 B CN101738208 B CN 101738208B CN 2008101745054 A CN2008101745054 A CN 2008101745054A CN 200810174505 A CN200810174505 A CN 200810174505A CN 101738208 B CN101738208 B CN 101738208B
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Abstract
The invention discloses a sensor for sensing the motion state of an object, comprising a receiving unit, a sensing unit and a processing unit. The receiving unit receives fluid with bubbles; the sensing unit can sense the electrical characteristics around to generate sensing signals; when the sensor moves with the object to cause the bubbles to approach the sensing unit, the electrical characteristics around the sensing unit can be changed so as to change the generated sensing signals; and the processing unit can judge the motion state of the object according to the sensing signals. Accordingly, the sensor can sense the motion state of the object.
Description
Technical field
But the present invention relates to the sensor of the stressed or motion state of a kind of sensing, and especially, the present invention relates to a kind of sensor that utilizes bubble to reach the stressed or motion state of sensing.
Background technology
The applicable field of motion sensor is very extensive, little to grass-roots food, clothing, live, row, amusement aspect, to national defence, Aeronautics and Astronautics etc., the motion sensor that all need use different degree of accuracy is to reach different application greatly.
Common now motion sensor is with the micro-electromechanical technology manufacturing.Micro-electromechanical technology is a kind of electronics and mechanical microminiaturization engineering of combining, and it utilizes semiconductor fabrication to make small machinery or electronic component.With motion sensor; Micro-electromechanical technology is produced movable microstructure with semiconductor fabrication process on silicon substrate; And motion states such as the speed of ability sensing different directions or acceleration; In addition, if with the systems incorporate in light, electricity, magnetic or sound field, can further do accurate measurement and control.
Yet above-mentioned motion sensor with the micro-electromechanical technology made is because it carries out motion sensing with mechanical movable piece; Therefore; Movable piece and base material or other position can produce friction inevitably, and loss movable piece and base material itself causes shorten the serviceable life of motion sensor.Thereby for serviceable life of lifter motion sensor, how reducing the loss that inner body caused because of friction is the emphasis of all circles' research.
In the prior art, above-mentioned mechanical type movable piece can be replaced by thermal, and this technology forms thermal gradient with well heater to the gas heating in the container.When this thermal motion sensor during with object movement; The thermal gradient that the gas in the container and the relativeness of motion sensor will change in the original container distributes, but and sensing cell sense heat gradient in the container and variation thereof also calculate the motion state of thermal motion sensor according to this.
The thermal motion sensor replaces mechanical movable piece with the mode of heated air, can avoid the shortening in the serviceable life that accessory loss causes.Yet the needed driving energy of heated air is with far surpassing the produced mechanical motion sensor of micro electronmechanical manufacturing process.On the other hand, the thermal gradient sensing need pass through complicated account form and could obtain exactly.In sum, though the thermal motion sensor has solved the problem of part because of the friction loss, what replace then is highly energy-consuming and the high shortcoming of method for sensing difficulty.
Summary of the invention
Therefore, one aspect of the present invention is to provide a kind of sensor that is used for the object sensing motion state, and it, and can address the above problem as the movable piece of motion sensing and do not need high to drive energy with bubble.
According to sensor of the present invention; Comprise the accommodating unit and first sensing cell; Accommodating unit is used to hold fluid, contains at least one bubble in the fluid, and first sensing cell is arranged at first predeterminated position on the inwall of accommodating unit; First sensing cell be used for sensing around it first electrical specification and produce first sensing signal according to first electrical specification; Wherein, when sensor caused this at least one bubble to influence first electrical specification around it near first sensing cell with object of which movement, first sensing cell was adjusted first sensing signal according to the variation of first electrical specification.
According to sensor of the present invention, in one embodiment, this sensor further comprises the processing unit that couples first sensing cell, and processing unit can receive first sensing signal and according to the motion state of the first sensing signal judgment object.
According to a specific embodiment, sensing element of the present invention comprises accommodating unit, sensing cell and processing unit.Accommodating unit can be used for holding fluid, then comprises bubble in the fluid.Sensing cell can be arranged at the predeterminated position in the accommodating unit inwall, and processing unit then can couple sensing cell and receive the output signal of sensing cell.
In this specific embodiment, sensing cell can its electrical specification on every side of sensing also be exported sensing signal according to this, and processing unit then can be judged its motion state according to sensing signal.When sensor moves with object; Bubble can do relative motion with sensor; And when bubble influences around the sensor electrical specification near sensing cell; The sensing signal that sensing cell is exported will be adjusted according to electrical specification variation on every side, and therefore, processing unit can change the motion state that judge sensor and object according to sensing signal.
According to sensor of the present invention; In one embodiment; This sensor further comprises second sensing cell; It is arranged at second predeterminated position on the inwall of accommodating unit; Second sensing cell be used for sensing around it second electrical specification and produce second sensing signal according to second electrical specification, and when sensor caused at least one bubble to influence its on every side second electrical specification near second sensing cell with object of which movement, second sensing cell was adjusted second sensing signal according to the variation of second electrical specification.
According to sensor of the present invention; In one embodiment; This sensor further comprises processing unit; It couples first sensing cell and second sensing cell, and processing unit can receive first sensing signal and second sensing signal and according to the motion state of first sensing signal and the second sensing signal judgment object.
According to sensor of the present invention, in one embodiment, this sensor further comprises the bubble generation unit, is used to produce at least one bubble.
According to sensor of the present invention; In one embodiment; This at least one bubble comprises first bubble and second bubble; The bubble generation unit further comprises first electrode and second electrode that couples power supply respectively, and the electric power that first electrode and second electrode can receive power supply produces first bubble and second bubble respectively with the electrolysis fluid.
According to sensor of the present invention, in one embodiment, this sensor further comprises and is arranged at the catalyzer of stating in the accommodating unit, and catalyzer is used for catalysis first bubble and second bubble and merges the fusion bubble that forms and be reduced into segment fluid flow.
According to sensor of the present invention; In one embodiment; This sensor further comprises support unit; First electrode is arranged on the support unit, and second electrode is arranged on the inwall of accommodating unit, and support unit can be used to separate second bubble that first bubble that the first electrolysis fluid produced and the second electrolysis fluid are produced.
Another aspect of the present invention be to provide a kind of with bubble as the sensor of movable piece with the object sensing motion state.
According to sensor of the present invention, comprise accommodating unit, luminescence unit and first sensing cell, accommodating unit is used to hold fluid, contains at least one bubble in the fluid, and accommodating unit has transparent surface; Luminescence unit is used to provide the light penetration transparent surface; First sensing cell is arranged at first predeterminated position on the inwall of accommodating unit; Wherein, when at least one bubble during near first sensing cell, the interface of at least one bubble and fluid reflects said light to the first sensing cell, and first sensing cell produces first sensing signal according to the light that is received.
According to sensor of the present invention, in one embodiment, when sensor during with object of which movement, at least one bubble is near first sensing cell.
According to sensor of the present invention, in one embodiment, this sensor further comprises the processing unit that couples first sensing cell, and processing unit can receive first sensing signal and according to the motion state of the first sensing signal judgment object.
According to sensor of the present invention, in one embodiment, accommodating unit further comprises soft board with respect to transparent surface, and when soft board was accepted external force, soft board can produce distortion and the compressing bubble causes at least one bubble near first sensing cell.
According to sensor of the present invention, in one embodiment, this sensor further comprises the processing unit that couples first sensing cell, and processing unit can receive first sensing signal and judge the external force size according to first sensing signal.
According to sensor of the present invention; In one embodiment; This sensor further comprises second sensing cell, and it is arranged at second predeterminated position on the inwall of accommodating unit, when at least one bubble during near second sensing cell; Interface reflection ray to the second sensing cell of this at least one bubble and fluid, and second sensing cell produces second sensing signal according to the light that is received.
According to a specific embodiment, sensor of the present invention comprises accommodating unit, luminescence unit and sensing cell.Accommodating unit can be used for holding fluid, then comprises bubble in the fluid, in addition, has transparent surface on the accommodating unit.Luminescence unit can emit beam and penetrate the transparent surface of accommodating unit.Sensing cell is arranged at the predeterminated position in the accommodating unit inwall, can be used for receiving light and produces sensing signal according to this.
In this specific embodiment; When sensor moves with object; Bubble can do relative motion with sensor; And when bubble during near sensing cell, the interface of bubble and fluid can reflect light that luminescence unit sends to sensing cell, and sensing cell then produces sensing signal according to the light that receives.In another specific embodiment, sensing cell can couple processing unit, and processing unit can receive sensing signal and pass through the motion state that sensing signal is judged sensor and object.
Another aspect of the present invention is to provide a kind of sensor that changes the visual effect of contactor control device with bubble.
Sensor of the present invention comprises accommodating unit, contact sensing unit and bubble generation unit, and accommodating unit is used to hold fluid, and accommodating unit has light transmitting surface; The contact sensing unit is arranged in the accommodating unit, is used for object sensing and comes close to or in contact with light transmitting surface and optionally send sensing signal according to sensing result; The bubble generation unit is arranged in the accommodating unit and couples the contact sensing unit, is used to receive sensing signal and produces at least one bubble near light transmitting surface according to sensing signal, and bubble can change the visual effect of outside said sensor, observing light transmitting surface.
According to sensor of the present invention, in one embodiment, the contact sensing unit further comprises: the light emission element, and it is arranged in the accommodating unit, and the light emission element is used to launch the light penetration light transmitting surface; And sensing element, it is arranged in the accommodating unit, and sensing element is used to receive by the light of reflection object and according to light transmission sensing signal; Wherein, when object came close to or in contact with light transmitting surface, object can reflex to sensing element with the light that the light emission element is launched.
According to sensor of the present invention; In one embodiment; Light transmitting surface is processed with soft materials; And the contact sensing unit further comprises switch and is arranged in the accommodating unit, and when causing the light transmitting surface distortion with trigger switch when object contact light transmitting surface and to the light transmitting surface application of force, switch sends sensing signal.
According to sensor of the present invention; In one embodiment; This at least one bubble comprises first bubble and second bubble; The bubble generation unit further comprises: reception/treatment element, and it couples the contact sensing unit, and reception/treatment element is used to receive the sensing signal that the contact sensing unit is sent; First electrode is arranged in the accommodating unit and couples power supply, and the electric power that first electrode receives power supply according to sensing signal is with the electrolysis fluid and then produce first bubble; And second electrode, being arranged in the accommodating unit and coupling power supply, the electric power that second electrode receives power supply according to sensing signal is with the electrolysis fluid and then produce second bubble.
According to sensor of the present invention, in one embodiment, first electrode and second polarity of electrode are different, cause gas and the gas componant in second bubble in first bubble different.
According to sensor of the present invention, in one embodiment, this sensor further comprises the catalyzer that is arranged in the accommodating unit, is used for catalysis first bubble and second bubble and merges the fusion bubble form and be reduced into segment fluid flow.
According to a specific embodiment, sensor of the present invention comprises accommodating unit, contact sensing unit and bubble generation unit.Accommodating unit can be used for holding fluid, and accommodating unit have light transmitting surface be available for users to the contact.The touch controls unit can be arranged in the accommodating unit and come close to or in contact with light transmitting surface with sensing user or object, and optionally sends sensing signal.
In this specific embodiment, the bubble generation unit can be arranged in the accommodating unit and with the contact sensing unit and couple.The bubble generation unit can receive sensing signal and produce bubble near light transmitting surface according to sensing signal; Bubble can change near the ray refractive index the light transmitting surface originally after near light transmitting surface, but causes user's autobiography sensor outward appearance to examine the visual effect that light transmitting surface appears.
Can further be understood through following embodiment and accompanying drawing about advantage of the present invention and spirit.
Description of drawings
Fig. 1 shows the synoptic diagram according to the sensor of a specific embodiment of the present invention.
Fig. 2 shows the sensor of Fig. 1 and makees straight-line synoptic diagram.
Fig. 3 shows the synoptic diagram according to the sensor of a specific embodiment of the present invention.
Fig. 4 shows the synoptic diagram according to the sensor of another specific embodiment of the present invention.
Fig. 5 shows the synoptic diagram according to the sensor of another specific embodiment of the present invention.
Fig. 6 shows the synoptic diagram according to the sensor of another specific embodiment of the present invention.
Fig. 7 and Fig. 8 show the synoptic diagram according to the sensor of another specific embodiment of the present invention.
Embodiment
Please with reference to Fig. 1, Fig. 1 shows the synoptic diagram according to the sensor 1 of a specific embodiment of the present invention.As shown in Figure 1, sensor 1 comprises the accommodating unit 10 and first sensing cell 12.The bubble 102 that wherein, can hold fluid 100 and be arranged in fluid 100 in the accommodating unit 10.Note that a bubble 102 only is shown in this specific embodiment, yet in practical application, the quantity of bubble 102 or volume can be decided according to user or deviser's demand, are not limited to the cited specific embodiment of this instructions.
First sensing cell 12 can be arranged at the predeterminated position on accommodating unit 10 inwalls.In this specific embodiment, first sensing cell 12 can comprise two first sensing points 120, and these two first sensing points 120 can be used to sensing electrical specification (for example, electric conductivity) therebetween, and according to electrical specification output sensing signal.Please with reference to Fig. 2, Fig. 2 shows the sensor 1 of Fig. 1 and makees straight-line synoptic diagram.As shown in Figure 2, sensor 1 moves along direction D, and this motion can be object sensor 1 application of force is caused in practical application.Bubble 102 can be with respect to sensor 1 and along moving in contrast to the direction of direction D; And then near first sensing cell 12; And because the composition of medium and fluid 100 in the bubble 102 and inequality, therefore the electrical specification of 120 of two first sensing points will and cause first sensing cell 12 to adjust its sensing signal according to this by bubble 102 changes.
According to another specific embodiment, first sensing cell 12 can couple processing unit 14 (like Fig. 1 and shown in Figure 2).Processing unit 14 can receive the sensing signal that first sensing cell 12 is produced, and according to the sensing signal that is received and change to judge the motion state of sensor 1.In practical application, if sensor 1 moves along with object, then the motion state of the sensor 1 judged of processing unit 14 is the motion state of object.
In practical application, processing unit 14 can directly be arranged on the sensor 1, and connects first sensing cell 12 and receive sensing signal through conduction pattern with lead or other entity connected mode.On the other hand, processing unit 14 also can be arranged at outside the sensor 1, and through wireless transmission method and first sensing cell, 12 UNICOMs with the reception sensing signal.Therefore, the mode that position and reception sensing signal are set of processing unit can be decided according to user or deviser's demand in practical application, is not limited to the cited specific embodiment of the present invention.
In sum, sensor of the present invention can be with the movable piece of bubble as motion sensing.Because bubble is not an entity component, therefore there is not problem because of the friction loss.In addition; Though bubble also might diminish because of the solubleness of gas componant in fluid wherein or disappear gradually; Yet difference according to gas componant in fluid and the bubble; The speed of its disappearance is much smaller than the heat dissipation speed of the thermal of prior art, and the frequency and the required driving energy that therefore replenish movable piece all can be less than the thermal motion sensors.In addition, because the measurement of electrical specification is easy, therefore do not need the complicated calculation process can obtain the motion state of sensor or object.
In addition, according to another specific embodiment, sensor 1 can further have second sensing cell and the 3rd sensing cell.In this specific embodiment; Second sensing cell comprises two second sensing points and the 3rd sensing cell comprises two second sensing points; Cooperate two first sensing points 120 of first sensor 12 can produce three kinds of sensing signals of representing different directions respectively, processing unit 14 then can be according to the three-dimensional motion state of these sensing signal judgment objects and sensor 1.
Please note; Above-mentioned each sensing cell can comprise the sensing points of varying number in practical application; And its quantity can be according to user or deviser's needs (for example, sensing sensitivity or cost consideration) and is decided, and is not limited to the cited specific embodiment of this instructions.
Because bubble maybe be because of internal gas reduces its volume in the solubleness or the aquation of fluid in fluid, the mechanism that therefore additional bubble need be set in practical application is to keep sensing function.The mechanism of replenishing bubble can comprise direct adding gas and in fluid or with fluid, convert gas to and form bubble.
Please with reference to Fig. 3, Fig. 3 shows the synoptic diagram according to the sensor 2 of a specific embodiment of the present invention.As shown in Figure 3, sensor 2 comprises accommodating unit 20, first electrode 220 and second electrode 222.Accommodating unit 20 can be held fluid 200, the first electrodes 220 and 222 at second electrode can be arranged in the accommodating unit 20.The sensing cell that is used for sense movement and the processing unit that note that this specific embodiment can be identical with above-mentioned specific embodiment, thereby repeat no more here.
In this specific embodiment, can select the electrolytic solution can electric connection of power supply 24, and receive the electric power of opposed polarities from power supply 24 as fluid 200, the first electrodes 220 and second electrode 222.But first electrode 220 and second electrode, 222 electrolysis fluids 200 and produce first bubble 2020 and second bubble 2022 of heterogeneity.For example, fluid can be water in practical application, but first electrode and second electrode then brine electrolysis and produce in hydrogen first bubble and in the second oxygenous bubble.
Above-mentioned first bubble and second bubble that produces by the electrolysis fluid; Can be reduced into former fluid when both contact and reduce the volume of bubble; Therefore if will use first bubble or second bubble as the movable piece of motion sensing the time, accommodating unit inside can be designed and separate first bubble and second bubble.For example, can design restraining mass between first electrode and second electrode and intercept first bubble and second bubble, it can't be contacted and be reduced to former fluid.
On the other hand; When having influence on transducer sensitivity if first bubble that produces and second bubble surpass requirement, but first electrode and second electrode also reverse operating and the opposite electric power of receiving polarity and produce different bubbles and merge with former bubble and to be reduced to former fluid.For example; First electrode produces the first excessive bubble if receive the electric power of first polarity; The electric power that then can instead add second polarity merges to produce second bubble and part first bubble in first electrode; And merge bubble and be reduced into former fluid thereby control first bubble quantity and bubble or volume, and likewise, second electrode also can carry out similar flow process to control second bubble quantity and bubble or volume.Please note; In practical application in order to quicken the action that above-mentioned trimming process or bubble are removed; Catalyzer can be set in accommodating unit help merge bubble and be reduced into former fluid, the quantity of catalyzer and the position is set also decides according to user or deviser's demand.
Sensor of the present invention also can be used for the sensing of contact force, and is not limited to motion sensing.Please with reference to Fig. 4, Fig. 4 shows the synoptic diagram according to the sensor 3 of another specific embodiment of the present invention.As shown in Figure 4, the difference of this specific embodiment and above-mentioned specific embodiment, the accommodating unit 30 that is this specific embodiment have touch surface 306 and are available for users to contact.When object P contacts touch surface 306 and causes it to deform; Touch surface 306 bubble 302 in can force fluid 300 makes it to move or distortion and near sensing cell 32, causes the electrical specification of 32 sensings of sensing cell to change and then adjusts the sensing signal that is produced.Through sensing signal, sensor 3 can be judged the size that puts on the power on the touch surface 306 and the sensing that reaches contact force.Note that sensing cell 32 set positions are not limited to this specific embodiment, the electrical specification variation that its design attitude only needs the sensing bubble to be caused gets final product.For example, all sensing points all can be arranged at the bottom of relative touch surface 306 in the accommodating unit 30 on the sensing cell 32, and according to the outwards arrangement of certain rule, can judge stressed size through the number of sensing points conducting.
Its peripheral electrical specification of the sensing cell sensing of above-mentioned specific embodiment is with the method as the judgement motion state; Yet; Also can be in practical application with other method, for example, the optics sensing; Judge the motion state of sensor or object, and be not limited to the cited specific embodiment of this instructions.
Please with reference to Fig. 5 and Fig. 6, Fig. 5 shows the synoptic diagram according to the sensor 4 of another specific embodiment of the present invention; Fig. 6 shows the synoptic diagram according to the sensor 4 of another specific embodiment of the present invention.As shown in Figure 5, the difference of this specific embodiment and above-mentioned specific embodiment, the sensing mechanism that is this specific embodiment is with luminescence unit 42 and 44 formations of light sensing cell.In this specific embodiment, sensor 4 comprises accommodating unit 40 equally to hold fluid 400 and bubble 402, and wherein, the one side of accommodating unit 40 can be transparent surface 404.
In this specific embodiment, luminescence unit 42 can be launched light penetration transparent surface 404 and get in the accommodating unit 40.When bubble 402 during near light sensing cell 44; The light that luminescence unit 42 sent can be by the interface reflection of 400 of bubble 402 and fluids and is passed to light sensing cell 44; Light sensing cell 44 produces sensing signal to processing unit (not shown in Fig. 5 and Fig. 6) according to the light that is received, and processing unit then can be judged the stressed or motion state of sensor 4 according to sensing signal.
Fig. 5 and Fig. 6 the difference of specific embodiment of representative respectively, the accommodating unit 40 that is Fig. 6 further comprises touch surface 406 and is available for users to contact.When object P contact touch surface 306 and when causing it to deform, touch surface 406 can compressing bubbles 402 moves it or is out of shape and near light sensing cell 44, causes light to be reflected onto light sensing cell 44 and produces sensing signal.Through sensing signal, sensor 4 can be judged its stress.
Aforesaid bubble generation mechanism also can be used for touch control components such as handwriting pad; Its practical ways can be when the sensor object sensing comes close to or in contact with touch surface; Can produce bubble near being changed light refractive index herein by position contacting on the touch surface according to the bubble generation mechanism, and then make the user observe the different visual effect.
For example, please with reference to Fig. 7 and Fig. 8, Fig. 7 and Fig. 8 show the synoptic diagram according to the sensor 5 of another specific embodiment of the present invention.As shown in Figure 7, when object P came close to or in contact with the touch surface 506 of printing opacity of accommodating unit 50 of sensor 5, the light that light emission element 52 is sent was reflexed to light sensing element 54 by object P.As shown in Figure 8; When light sensing element 54 receives light, can send sensing signal (path of the transmission of sensing signal is not illustrated in this specific embodiment, yet its outgoing route can design according to user or deviser's demand) to bubble generation unit 56 produces on bubble 502 to the touch surface 506 with control bubble generation unit 56.The user can obviously observe the visual effect that 500 of bubble 502 and fluids produce because of the refractive index difference.
In practical application, the mode of sensing touch-control also is not limited to the described optics sensing of above specific embodiment.For example, touch surface can be processed with soft materials, when object contacts touch surface, cause the touch surface distortion and trigger the switch in the accommodating unit, and when switch was triggered, the bubble generation unit produced bubble to touch surface.On the other hand, the bubble generation unit of the sensor also can produce with electrolysis mode, but so its reverse operating and make the bubble of generation be reduced into former fluid, catalyzer also can be set simultaneously help the bubble reduction.Produce bubble and make bubble be reduced into the method for fluid through the electrolysis fluid, can avoid sensor also to need the problem of fluid replacement after use a period of time.
Compared with prior art, sensor of the present invention is with the movable piece of bubble as power sensing or motion sensing.Because bubble is not entity component, therefore can solve in the prior art problem that causes sensor failure because of part consumption.On the other hand, because the solubleness of bubble in fluid, its volume minimizing or the speed that disappears are slower than the heat dissipation speed of the thermal of prior art, therefore can keep existing of movable piece with the method for low power consuming.
Through the detailed description of above preferred specific embodiment, characteristic of the present invention and spirit can be more clearly described in hope, and are not to come scope of the present invention is limited with the above-mentioned preferred specific embodiment that is disclosed.On the contrary, its objective is that hope can and be equal to arrangement with various changes and be covered by in the scope of claim of the present invention.Therefore, the scope of claim of the present invention should be done the wideest explanation according to above-mentioned explanation, to cause it to contain all possible change and to be equal to arrangement.
The primary clustering symbol description
1,2,3,4,5: sensor
10,20,30,40,50: accommodating unit
100,200,300,400,500: fluid
102,302,402,502: bubble
120: the first sensing points of 12: the first sensing cells
14: processing unit D: direction
2022: the second bubbles of 2020: the first bubbles
222: the second electrodes of 220: the first electrodes
24: power supply 306,406,506: touch surface
32: sensing cell P: object
404: transparent surface 42: luminescence unit
44: light sensing cell 52: the light emission element
54: light sensing element 56: the light sensing element.
Claims (17)
1. sensor is used for the motion state of object sensing, and said sensor comprises:
Accommodating unit is used to hold fluid, contains at least one bubble in the said fluid;
The bubble generation unit; Be used to produce said at least one bubble; Wherein said at least one bubble comprises first bubble and second bubble; Said bubble generation unit further comprises first electrode and second electrode that couples power supply respectively, and the electric power that said first electrode and said second electrode can receive said power supply produces first bubble and second bubble respectively with the said fluid of electrolysis, and
First sensing cell is arranged at first predeterminated position on the inwall of said accommodating unit, said first sensing cell be used for sensing around it first electrical specification and produce first sensing signal according to said first electrical specification; Wherein, When said sensor caused said at least one bubble to influence said first electrical specification around it near said first sensing cell with said object of which movement, said first sensing cell was adjusted said first sensing signal according to the variation of said first electrical specification.
2. sensor according to claim 1 further comprises the processing unit that couples said first sensing cell, and said processing unit can receive said first sensing signal and judge the said motion state of said object according to said first sensing signal.
3. sensor according to claim 1; Second sensing cell that further comprises second predeterminated position on the said inwall that is arranged at said accommodating unit; Said second sensing cell be used for sensing around it second electrical specification and produce second sensing signal according to said second electrical specification; And when said sensor caused said at least one bubble to influence said second electrical specification around it near said second sensing cell with said object of which movement, said second sensing cell was adjusted said second sensing signal according to the variation of said second electrical specification.
4. sensor according to claim 3; Further comprise the processing unit that couples said first sensing cell and said second sensing cell, and said processing unit can receive said first sensing signal and said second sensing signal and judge the said motion state of said object according to said first sensing signal and said second sensing signal.
5. sensor according to claim 1 further comprises the catalyzer that is arranged in the said accommodating unit, and said catalyzer is used for said first bubble of catalysis and said second bubble and merges the fusion bubble that forms and be reduced into the said fluid of part.
6. sensor according to claim 1; Further comprise support unit; Said first electrode is arranged on the said support unit; And said second electrode is arranged on the said inwall of said accommodating unit, and said support unit can be used to separate said second bubble that said first bubble that the said fluid of said first electrolysis produced and the said fluid of said second electrolysis are produced.
7. sensor comprises:
Accommodating unit is used to hold fluid, contains at least one bubble in the said fluid, and said accommodating unit has transparent surface; Luminescence unit is used to provide light penetration said transparent surface;
The bubble generation unit; Be used to produce said at least one bubble; Wherein said at least one bubble comprises first bubble and second bubble; Said bubble generation unit further comprises first electrode and second electrode that couples power supply respectively, and the electric power that said first electrode and said second electrode can receive said power supply produces first bubble and second bubble respectively with the said fluid of electrolysis; And
First sensing cell is arranged at first predeterminated position on the inwall of said accommodating unit; Wherein, When said at least one bubble during near said first sensing cell; The interface of said at least one bubble and said fluid reflects said light to said first sensing cell, and said first sensing cell produces first sensing signal according to the said light that is received.
8. sensor according to claim 7, wherein, when said sensor during with object of which movement, said at least one bubble is near said first sensing cell.
9. sensor according to claim 8 further comprises the processing unit that couples said first sensing cell, and said processing unit can receive said first sensing signal and judge the motion state of said object according to said first sensing signal.
10. sensor according to claim 7; Wherein, Said accommodating unit further comprises soft board with respect to said transparent surface, and when said soft board was accepted external force, said soft board can produce distortion and oppress said bubble and cause said at least one bubble near said first sensing cell.
11. sensor according to claim 10 further comprises the processing unit that couples said first sensing cell, said processing unit can receive said first sensing signal and judge said external force size according to said first sensing signal.
12. sensor according to claim 7; Second sensing cell that further comprises second predeterminated position on the said inwall that is arranged at said accommodating unit; When said at least one bubble during near said second sensing cell; The said interface of said at least one bubble and said fluid reflects said light to said second sensing cell, and said second sensing cell produces second sensing signal according to the said light that is received.
13. a sensor comprises:
Accommodating unit is used to hold fluid, and said accommodating unit has light transmitting surface;
The contact sensing unit is arranged in the said accommodating unit, is used for object sensing and comes close to or in contact with said light transmitting surface and optionally send sensing signal according to sensing result; And
The bubble generation unit; Be arranged in the said accommodating unit and couple said contact sensing unit; Be used to receive said sensing signal and produce at least one bubble near said light transmitting surface according to said sensing signal; Said bubble can change the visual effect of outside said sensor, observing said light transmitting surface, and wherein said at least one bubble comprises first bubble and second bubble, and said bubble generation unit further comprises:
Reception/treatment element couples said contact sensing unit, and said reception/treatment element is used to receive the said sensing signal that said contact sensing unit is sent;
First electrode is arranged in the said accommodating unit and couples power supply, and said first electrode receives said power supply according to said sensing signal electric power is with the said fluid of electrolysis and then produce said first bubble; And
Second electrode is arranged in the said accommodating unit and couples said power supply, and said second electrode receives said power supply according to said sensing signal electric power is with the said fluid of electrolysis and then produce said second bubble.
14. sensor according to claim 13, wherein, said contact sensing unit further comprises:
The light emission element is arranged in the said accommodating unit, and said light emission element is used to launch the said light transmitting surface of light penetration; And
Sensing element is arranged in the said accommodating unit, and said sensing element is used to receive by the said light of said reflection object and according to said light and sends said sensing signal;
Wherein, when said object came close to or in contact with said light transmitting surface, said object can reflex to said sensing element with the said light that said light emission element is launched.
15. sensor according to claim 13; Wherein, Said light transmitting surface is processed with soft materials; And said contact sensing unit further comprises the switch that is arranged in the said accommodating unit, and when said object contacts said light transmitting surface and causes the distortion of said light transmitting surface when triggering said switch to the said light transmitting surface application of force, said switch sends said sensing signal.
16. sensor according to claim 13, wherein, said first electrode and said second polarity of electrode are different, cause gas and the gas componant in said second bubble in said first bubble different.
17. sensor according to claim 16 further comprises the catalyzer that is arranged in the said accommodating unit, is used for said first bubble of catalysis and said second bubble and merges the fusion bubble form and be reduced into the said fluid of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101745054A CN101738208B (en) | 2008-11-05 | 2008-11-05 | Sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101745054A CN101738208B (en) | 2008-11-05 | 2008-11-05 | Sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101738208A CN101738208A (en) | 2010-06-16 |
| CN101738208B true CN101738208B (en) | 2012-04-04 |
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| CN2008101745054A Expired - Fee Related CN101738208B (en) | 2008-11-05 | 2008-11-05 | Sensor |
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| US10502756B2 (en) * | 2016-08-26 | 2019-12-10 | Robert Bosch Gmbh | Flexible microfluidic motion sensors |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813556A (en) * | 1972-04-27 | 1974-05-28 | Singer Co | Tilt limit detecting apparatus |
| CN1494653A (en) * | 2001-04-16 | 2004-05-05 | ά | Optical bubble detection system |
| CN1525145A (en) * | 2003-02-26 | 2004-09-01 | 祥群科技股份有限公司 | Thermal bubble type minitype inertia sensing element |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813556A (en) * | 1972-04-27 | 1974-05-28 | Singer Co | Tilt limit detecting apparatus |
| CN1494653A (en) * | 2001-04-16 | 2004-05-05 | ά | Optical bubble detection system |
| CN1525145A (en) * | 2003-02-26 | 2004-09-01 | 祥群科技股份有限公司 | Thermal bubble type minitype inertia sensing element |
Non-Patent Citations (1)
| Title |
|---|
| 董伟等.不同工质中汽泡周围电场特性研究.《工程热物理学报》.2006,第27卷(第6期), * |
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