CN202583329U - Auxiliary device of capacitance measuring instrument - Google Patents
Auxiliary device of capacitance measuring instrument Download PDFInfo
- Publication number
- CN202583329U CN202583329U CN 201220237763 CN201220237763U CN202583329U CN 202583329 U CN202583329 U CN 202583329U CN 201220237763 CN201220237763 CN 201220237763 CN 201220237763 U CN201220237763 U CN 201220237763U CN 202583329 U CN202583329 U CN 202583329U
- Authority
- CN
- China
- Prior art keywords
- probe
- button
- utility appliance
- base
- capacitance
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses an auxiliary device of a capacitance measuring instrument. The auxiliary device of the capacitance measuring instrument is used for assisting the capacitance measuring instrument to measure capacitance between detection lines, and improving the accuracy of capacitance measurement values and the testing efficiency. The auxiliary device of the capacitance measuring instrument provided by the utility model includes a pedestal, a shaft rod disposed above the pedestal and connected with the pedestal, and at least one probe lapping on the shaft rod. Each probe is connected with a reference grounding point and rotates around the shaft pin under the effect of a downward pressure exerted on a tail part, thereby enabling a head part of the probe to be raised from a contact position of a non-detection line of a to-be-detected object.
Description
Technical field
The utility model relates to technical field of flat panel display, relates in particular to a kind of utility appliance of capacitance measuring instrument.
Background technology
In recent years, flat panel display develops rapidly, and especially touch-screen (Touch Panel) LCD has become the main flow of flat-panel monitor gradually.Capacitive touch screen since need not in its touch process to touch-screen exert pressure, the touch point locating accuracy is higher, and the location, touch point need not advantages such as calibration, enjoys people to favor.
Capacitance touch screen adopts indium tin oxide (ITO) layer as touch induction circuit, when finger contact touch screen surface, can form a coupling capacitance between finger and the ITO metal oxide layer, and a part of electric charge on the ITO layer will be transferred to human body.The ITO layer is in order to recover the loss of electric charge, and from four jiaos of electric charges that replenish into respective amount of touch-screen, the quantity of electric charge that four jiaos of all directions are replenished and the distance of touch point are proportional, extrapolate touch point position thus.Particularly; In the touch induction circuit of touch-screen; Can produce between the drive wire (Driving Line) and the line of induction (Sensing Line) coupling capacitance or/cross capacitance; When finger contact touch-screen, finger can cause coupling capacitance or/variation of cross capacitance value, the processor that is used with this touch-screen according to this coupling capacitance or/variable quantity of cross capacitance confirms the position of finger touch point.
According to the difference in touch-screen applications field and the difference of functional requirement, need design the touch induction circuit of different structure.Therefore, to the coupling capacitance that produces between the drive wire and/or the line of induction or/measurement of cross capacitance value is most important.
Prior art; When needs are measured the capacitance between a certain the line of induction and a certain the drive wire; With capacitance measurement equipment (Inductance Capacitance Resistance, wire bonds (PAD) zone and the said line of induction and the corresponding lead-in wire of drive wire on the direct touch screen of slotted line LCR) (probe of slotted line).The said line of induction and the corresponding lead-in wire of drive wire that needs to measure electric capacity is the detection line, and the lead-in wire that all the other lines of induction and drive wire are corresponding is non-detection line.But, the capacitance measurement mode between this drive wire and the line of induction, in the process of surveying a certain detection line, non-detection line is not to be in ground state.So LCR can receive the adjacent line of induction or/and the influence of drive wire makes that capacitance measurement numerical value is inaccurate to the detection of surveying line.Correct capacitance measurement method need be with non-slotted line ground connection.The capacitance measurement method that proposes at present need be starched the ground connection of making contact to non-detection line welding fly line or coated silver; But these two kinds of measuring methods can only be carried out single measurement to specific slotted line in actual mechanical process; When repeatedly measuring different detection lines for needs, it is extremely inconvenient to operate.
In sum, during drive wire and the electric capacity line of induction between of prior art in repeatedly measuring the touch-screen touch induction circuit operation extremely inconvenient, testing efficiency is lower.
The utility model content
The utility model embodiment provides a kind of utility appliance of capacitance measuring instrument, measures the electric capacity of surveying between the line in order to the auxiliary capacitor surveying instrument, improves the accuracy and the testing efficiency of measurement capacitance.
The utility appliance of the capacitance measuring instrument that the utility model embodiment provides comprises:
Base, be positioned at axostylus axostyle, at least one probe of taking on said axostylus axostyle that said base top links to each other with this base; Each root probe with link to each other with reference to earth point; And under the downward pressure effect that puts on afterbody around said spindle rotation, its head is lifted from the contact position with the non-detection line of determinand.
The utility model embodiment; A kind of utility appliance of capacitance measuring instrument is provided; Comprise: base, be positioned at axostylus axostyle, at least one probe of taking on said axostylus axostyle that said base top links to each other with this base; Each root probe with link to each other with reference to earth point, and under the downward pressure effect that puts on afterbody around said spindle rotation, its head is lifted from the contact position with the non-detection line of determinand.Under the state of nature, non-detection line contacts with probe, probe with link to each other with reference to earth point, make and the contacted non-detection line ground connection of probe, improve the accuracy of measurement capacitance.When needs were surveyed other and surveyed the electric capacity between lines, a probe that only needs to survey the line correspondence separated with the detection line, and promptly the afterbody at this probe applies downward pressure, and its head is lifted from the contact position with the detection line of determinand.And will guarantee that other all non-detection lines contact with probe.Improve the testing efficiency of surveying electric capacity between the line.
Description of drawings
The principle schematic of the electric capacity between the test probes line that Fig. 1 provides for the utility model embodiment;
The utility appliance of the capacitance measuring instrument that Fig. 2 provides for the utility model embodiment and the structural representation of determinand;
The utility appliance of the capacitance measuring instrument that Fig. 3 provides for the utility model embodiment and the structural representation of determinand;
The utility appliance of the capacitance measuring instrument that Fig. 4 provides for the utility model embodiment and the structural representation of determinand with probe button;
The utility appliance of the capacitance measuring instrument that Fig. 5 provides for the utility model embodiment and the structural representation of determinand with spring;
The utility appliance of the capacitance measuring instrument that Fig. 6 provides for the utility model embodiment and the structural representation of determinand with shackle member;
The utility appliance of the capacitance measuring instrument that Fig. 7 provides for the utility model embodiment and the structural representation of determinand with protective cover;
Fig. 8 has fixedly a utility appliance of the capacitance measuring instrument of the knob of protective cover and the structural representation of determinand for what the utility model embodiment provided;
The probe structure synoptic diagram that Fig. 9 provides for the utility model embodiment with adjusting knob;
The plan structure synoptic diagram of the utility appliance of the capacitance measuring instrument that Figure 10 provides for the utility model embodiment with shift knob;
The plan structure synoptic diagram of the utility appliance of the capacitance measuring instrument that Figure 11 provides for the utility model embodiment with pilot lamp;
The system architecture synoptic diagram of the measurement electric capacity that Figure 12 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of utility appliance of capacitance measuring instrument, measures electric capacity in order to the auxiliary capacitor surveying instrument, improves the accuracy and the testing efficiency of measurement capacitance.
In the display technique field, capacitance measuring instrument is generally used for measuring the electric capacity between the circuitry lines on display panel or the touch-screen.When the electric capacity of measuring between certain two circuitry lines,, introduce the utility appliance of capacitance measuring instrument, with said other circuitry lines ground connection for fear of of the influence of other circuitry lines to test value.
To certain two circuit under test line, establish the circuit under test line for surveying line, the circuitry lines that need not to measure electric capacity is non-detection line.Said non-detection line is to influence capacitance measuring instrument arbitrarily to measure lead or the conductive component of surveying line capacitance.
The ultimate principle of electric capacity between the line is surveyed in the measurement that provides of the utility model embodiment once of following brief account.
At first, two charged conductors form electric capacity near meeting each other, no matter are touch-screen single-layer touch sensor circuit or double-deck touch induction circuit, all can have electric capacity between the circuitry lines (line of induction and/or drive wire).During the finger touches touch-screen, and the electric capacity between the corresponding line of induction of touch position and the drive wire can change, and confirms the position of finger touches touch-screen through the changes in capacitance amount.For a definite touch-screen, the capacitance between its drive wire and the line of induction is confirmed, and is pre-designed according to certain parameter.Therefore, in touch-screen manufacturing process, be very important according to the capacitance between the parameter preset strict control line of induction and the drive wire, correspondingly, the capacitance of accurately measuring between the line of induction and the drive wire is most important.
But; The line of induction and drive wire on the touch-screen are more, and circuitry lines all has certain coupling capacitance each other, cause there are differences between electric capacity and the actual predetermined capacitance between a certain the line of induction and a certain the drive wire; If when directly measuring the capacitance between the line of induction and the drive wire; Receive the influence of other lines of induction and drive wire, the capacitance that records is inaccurate, makes that the touch location is inaccurate.And, even for the touch-screen of reduced size, the up hundreds of bar of the drive wire on it and the line of induction even thousands of.Method according to the electric capacity between the existing measurement line of induction and the drive wire: non-detection line welding fly line or coated silver are starched the ground connection of making contact, and efficient is extremely low, measures extremely inconvenient.
Capacitance meter that provides through description of drawings the utility model embodiment below and utility appliance thereof are measured the principle of electric capacity.
Referring to Fig. 1, for the utility model LCR measuring instrument is measured a certain line of induction of touch-screen and the capacitive measuring principle synoptic diagram between a certain drive wire.The ultimate principle of measuring electric capacity does; When the electric capacity measured between a certain the line of induction and a certain the drive wire; Utility appliance through capacitance measuring instrument is with other lines of induction and other drive wires ground connection simultaneously; Make electric capacity between said a certain line of induction measuring and a certain the drive wire not receive the influence of other lines of induction and/or drive wire, make measurement capacitance more accurate.GND like mark among Fig. 1 is the state that lead is in ground connection, and this lead is non-detection line, and the lead that links to each other with the LCR measuring instrument is for surveying line.When needs are measured in addition the electric capacity between a certain the line of induction and a certain the drive wire, only need regulate to the associated components on the utility appliance of capacitance measuring instrument, change needs the line of induction or the drive wire of ground connection.Realize that simply, testing capacitor efficient is high.
Fig. 1 only shows the principle that the utility model is measured electric capacity.In practical application, LCR measures the electric capacity between a certain the line of induction and a certain the drive wire, the corresponding line of induction of each bar lead-in wire or drive wire through measuring at the lead-in wire of touch-screen peripheral circuit region.Said lead-in wire is positioned at the wire bonds zone.The metal wire in wire bonds zone (also promptly going between) is commonly called as golden finger, and each golden finger is corresponding with the line of induction or the drive wire that touch in the circuit.LCR measures the electric capacity between the line of induction and the drive wire, is to realize through the electric capacity of measuring between certain two golden finger.In like manner, the utility appliance of LCR also is through other golden finger ground connection outside the golden finger that this time LCR is measured, so that LCR accurately measures the electric capacity between a certain the line of induction and a certain the drive wire.
Describe for ease, in capacitance measurement process, the golden finger that needs to measure electric capacity is called the detection line, and other golden fingers that need not to measure electric capacity are called non-detection line.
Below will combine accompanying drawing that the technical scheme that the utility model embodiment provides is described.
Referring to Fig. 2; The utility appliance of the capacitance measuring instrument that the utility model embodiment provides is used for the non-detection line ground connection with touch induction circuit on the touch-screen, and it is unsettled to survey line; Unsettled detection line is used for being measured by capacitance measuring instrument, and this utility appliance specifically comprises:
One base 1, an axostylus axostyle 2, at least one probe 3 (metal probe);
Referring to Fig. 3, take on axostylus axostyle 2 at the probe of each root probe middle part 31, and probe middle part 31 can be rotated around axostylus axostyle 2; End of probe 32 contacts with base 1; When this contact position had determinand, the end of probe 32 of each root probe contacted with said determinand, each root probe 3 with link to each other with reference to earth point.Particularly, each root probe passes through a lead separately and links to each other with reference to earth point, and perhaps, all probes pass through a lead and link to each other with reference to earth point.
When the auxiliary capacitor surveying instrument was measured electric capacity, the majority circuit line need be grounded, and has only two circuitry lines wherein to be in non-ground state.Using a lead that all probes are connected to reference to earth point, is in the design of utility appliance or all very simple and convenient in the practical operation.
An any and a certain probe 3 contacted conductors all are in ground state (prerequisite is, this probe be in connected state with reference to earth point, i.e. circuit non-fault); That is to say; The line of induction on an any and a certain probe 3 contacted touch-screens or/and drive wire all can be grounded; When certain root on the touch-screen or a few lines of induction and/or drive wire need not ground connection; Only need to apply downward pressure for the probe afterbody 33 of the probe 3 that contacts with this line of induction and/or drive wire, promptly exert pressure, make end of probe 32 lift from contact position with the said line of induction and/or drive wire according to the direction of arrow indication among Fig. 3; Up to separating, stop to exert pressure for probe 3 with the said line of induction or drive wire.
Said each root probe can be that linearity also can be a curve-like.
Preferably, for the ease of each root probe is operated, and make probe contact better with golden finger on the touch-screen, referring to Fig. 2 or Fig. 3, the probe that the utility model embodiment provides is " Z " word shape.Every probe is provided with protective seam, and end of probe exposes, so that contact with non-detection line on the determinand.
Preferably; Referring to Fig. 4; Need lift with away from golden finger or base 1 on the determinand of contact with it the time at end of probe 32, push probe afterbody 33 for ease and make it around axostylus axostyle 2 rotations, the afterbody 33 of each root probe also is provided with the probe button 4 of accepting downward pressure; Particularly, when the probe button 4 of giving a certain probe applied downward pressure, this probe button 4 moved down, and probe 3 rotates around axostylus axostyle 2 simultaneously, and end of probe 32 is from lifting with the contact position of the golden finger of determinand and separating with golden finger.
The shape of this probe button 4 can be circular or the quadrilateral of rule or for triangle etc., so long as any shape that can play the effect of conveniently pushing all can, the size of probe button 4 can design according to convenience of using in the practical application and demand property.
Preferably, referring to Fig. 5, when exerting pressure for probe button 4; Be applied to pressure in order to make each probe button 4 to cushion from one's body; The below of each probe button 4 is provided with buffer spring 5, and an end of this buffer spring links to each other with probe button 4, and the other end links to each other 1 with base.
When applying downward pressure for each probe button 4, the buffer spring 5 that links to each other with probe button 4 is given 4 one reacting forces of probe button, makes that the pressure that is applied on the probe button 4 is necessarily cushioned.Like this; The end of probe 32 of the probe 3 that links to each other with each probe button 4 is slowly from lifting with end of probe 32 contacted positions; Away from the golden finger of base 1 or determinand, be unlikely to when probe button 4 is accepted bigger pressure, to damage the probe or the miscellaneous part that are attached thereto.The cross-sectional area of this buffer spring 5 the size and highly can be according to Demand Design; The height of each buffer spring under state of nature approximates the vertical range of base to the probe afterbody, and the residing state of probe of this moment is that end of probe perhaps contacts with base with the golden finger joint of touch sensitive panel.
Preferably; Referring to Fig. 6; On base 1 and the next door that is positioned at rear or each probe button 4 of each probe button 4 be provided with shackle member 6, each shackle member 6 is fixed on base 1 and receives at said probe button 4 and to block said probe button 4 when the external force effect is moved down into certain distance and can discharge the probe button 4 that blocks.Certainly, this shackle member 6 also can be arranged on any old place on every side of button.Preferably, in order to make the movable position of shackle member 6 have the effect of movable buffering, under shackle member 6 (parts that directly contact with the probe button), be provided with another spring (not shown among Fig. 6).
Referring to Fig. 7, said utility appliance also comprises the protective cover 7 that is positioned on the base 1, and this protective cover 7 flexibly connects with base 1.Preferably, through swinging arms or be threaded, through swinging arms or screw thread make protective cover 7 near or away from base 1, when movable this swinging arms or screw thread make it near base 1, can the determinand of clamping between base 1 and said knob or screw thread.For example, can connect base 1 and protective cover 7 through screw and nut 8.Can between protective cover 7 and base 1, pair of screws and nut be set, perhaps be provided with manyly, for example pair of screws and nut each side are set, perhaps pair of screws and nut are set at each angle of four jiaos of protective cover 7 at protective cover to screw and nut.Preferably, damage base in order to prevent screw, base top and each screw below also are provided with pad 9.
The material of protective cover can be plastics or glass, can be transparent or nontransparent.
The size of protective cover is the size of all probe institute region covered, and the probe button of each probe is exposed at the protective cover outside, is convenient to the probe button and accepts applied external force.This protective cover can protect probe not receive the extraneous destruction or the pollution of dust etc.
Preferably, referring to Fig. 8, protective cover 7 is provided with the watch window 10 of certain area.It is the watch window that corresponding each root probe is provided with certain area on the protective cover 7.Can observe all probes simultaneously through this watch window.
Referring to Fig. 9, each probe button 4 is provided with regulates the adjusting knob 11 that probe 3 turns an angle on the plane parallel with base 1.Like this, probe 3 not only can rotate around axostylus axostyle 2, can also on the plane parallel with base 1, turn an angle, and the dotted line probe is represented probe 3 residing position after certain corner among Fig. 9.Four-headed arrow as shown in Figure 9 is the direction that probe 3 rotates.When the golden finger loose contact on a certain probe and the determinand, can finely tune through 11 pairs of probes of adjusting knob, 3 residing positions, guarantee that end of probe contacts well with the corresponding golden finger of determinand.
Preferably; Referring to Figure 10; Being used on the described utility appliance is provided with the first shift knob K1 with the lead that each root probe 3 is connected to reference to earth point, and when this first switch was opened button K1 unlatching, probe 3 was in ground state; When this first shift knob K1 closed, probe was in vacant state.Wherein, each root probe 3 is connected to reference to earth point through one first shift knob K1 respectively.Perhaps, all probes 3 are connected to reference to earth point through a lead and one first shift knob K1.Probe shown in Figure 10 with reference to the earth point connected mode be: all probes 3 are connected to reference to earth point through a lead and one first shift knob K1.The first shift knob K1 controls all probes and being connected with reference to earth point.
Preferably, each probe on this utility appliance is connected with the voltage source with a setting voltage through second switch button K2.Preferably, all probes are connected with the voltage source with a setting voltage through a second switch button K2.Be connected with voltage source through a second switch button K2 at all probes, and all probes 3 are connected under the situation with reference to earth point through a lead and one first shift knob K1 with a setting voltage; When second switch button K2 opens and the first shift knob K1 when closing, all probes all are applied with a setting voltage, and this setting voltage is a non-zero voltage.When second switch button K2 closes and the first shift knob K1 when opening, all probes 3 are in ground state.
Preferably, referring to Figure 11, each probe 3 is connected with the voltage source with a setting voltage through a pilot lamp 12 and a second switch button K2.Each pilot lamp 12 is positioned on the corresponding probe button 4 of every probe, can certainly be positioned at other positions, on base.Each probe must corresponding pilot lamp 12.Each probe can a corresponding second switch button K2 or corresponding one the second button K2 switch of all probes.As the corresponding second switch button K2 of all probes; And corresponding one first shift knob K1 of all probes; When second switch button K2 opens and the first shift knob K1 when closing, has certain voltage on each root probe 3, if probe connects the circuit non-fault of voltage source; The pilot lamp 12 that then probe is corresponding is shinny, otherwise pilot lamp 12 does not work.
To combine accompanying drawing to provide that the utility model embodiment provides below, the utility appliance auxiliary capacitor surveying instrument of capacitance measuring instrument measures the line of induction of touch sensitive display and the detailed process of the electric capacity between the drive wire.
Referring to Figure 12, the vertical view of the system of the electric capacity between the circuitry lines on the measurement determinand that provides for the utility model embodiment.This system comprises: capacitance measuring instrument (LCR surveying instrument), and the determinand that links to each other with the LCR surveying instrument, and be used for the utility appliance that auxiliary LCR surveying instrument is measured electric capacity.
Determinand in the present embodiment is the golden finger in the peripheral circuit wire bonds zone on the touch-screen.If the golden finger of welding region testing capacitance comprises 12; 7 and the corresponding golden finger of the line of induction; And 5 with the corresponding golden finger of drive wire, corresponding with the probe X1 to X7 on the utility appliance of corresponding golden finger of the line of induction and the LCR surveying instrument among Figure 12; Corresponding with golden finger and probe Y1 to Y5 that drive wire is corresponding.Need now through the LCR surveying instrument measure the golden finger corresponding with probe X6 and with the corresponding golden finger of probe Y5 between electric capacity, i.e. electric capacity between the measurement detection line.Specifically may further comprise the steps:
Particularly, touch-screen is positioned on the said utility appliance, satisfies condition: each golden finger in the wire bonds zone of touch induction circuit is corresponding with the probe 3 on the utility appliance, guarantees that each golden finger all contacts with a probe 3.Since this probe 3 with link to each other with reference to earth point, each all is grounded with the golden finger that probe 3 links to each other.
Need to prove that each golden finger must contact with probe, but not necessarily each root probe contacts with golden finger all.Therefore, the quantity of probe is not less than the quantity of the golden finger on the determinand on the utility appliance.Spacing between the golden finger is fixed, but the spacing between the probe can be regulated through the adjusting knob on the probe button.When the stationkeeping of determinand on base, will contact with golden finger with the immediate probe of golden finger.Probe spacing shown in Figure 12 is identical with the golden finger spacing or close.
Probe X6 and probe Y5 on step 2, the said utility appliance of adjustment make probe X6 separate with corresponding golden finger, and make probe Y5 separate with corresponding golden finger.
Particularly, apply certain pressure through the afterbody to probe X6 or Y5, make the rotating around axostylus axostyle 2 of probe X6 or Y5, the probe afterbody drives probe and lifts in the process that moves down, and separates with contacted golden finger.Preferably, referring to Fig. 4, can make probe X6 or Y5 separate through pushing the probe button 4 of probe X6 or Y5 with the golden finger of contact separately.Preferably, referring to Fig. 6, in the process of pushing probe button 4, the 5 pairs of pressure of buffer spring that are positioned at its below play certain buffer action, are unlikely to when the probe button receives bigger pressure, damage probe or other structures.Preferably, when probe button 4 is moved down into certain position under external force, utilize the shackle member 6 that is positioned at probe button 4 next doors that probe button 4 is blocked.At this moment, probe X6 separates with each self-corresponding golden finger with probe Y5.
The electric capacity of step 3, capacitance measuring instrument measuring probe X6 and probe Y5.
Particularly; Wherein slotted line golden finger corresponding with probe X6 of capacitance measuring instrument is contacted; The golden finger that another root slotted line is corresponding with probe Y5 contacts, and at this moment, the electric capacity that capacitance measuring instrument is measured is for surveying the electric capacity between the line; Because other non-detection lines all are grounded, the capacitance between the detection line does not receive the influence of other non-detection lines.
When needs are measured the electric capacity between other detection lines, for example need the electric capacity between the corresponding golden finger of measuring probe X1 and Y2, further comprising the steps of.
Particularly, discharge the probe button 4 of the probe X6 that blocks, probe X6 is resetted with the corresponding shackle member of probe X6 6.In like manner, probe Y5 is also resetted.
Probe X1 and Y2 are similar with corresponding golden finger separating process and above-mentioned steps 2, repeat no more here.
When probe X1 and Y2 with after corresponding golden finger separates, repeating step three.
That is to say that behind the electric capacity that measures between certain two golden finger, in the time of also need measuring the electric capacity between other golden fingers, only need the probe that golden finger to be measured is corresponding to separate with this golden finger, other all golden fingers contact with corresponding probe.The simple capacitance of measuring efficiently between many group detection lines.With respect to prior art non-detection line welding fly line or coated silver are starched the ground connection of making contact, the electric capacity that the utility appliance auxiliary capacitor measuring instrument of the capacitance measuring instrument that the utility model provides is measured is accurate and testing efficiency is higher.
Preferably, before the electric capacity of test probes line, in order to guarantee all non-detection lines and be in connected state that the utility model also provides a kind of device whether non-detection line is communicated with earth point of testing with reference to the circuit of earth point.Particularly, all probes on the utility appliance all are connected on the lead, this lead ground connection; And all probes on the utility appliance all are connected on another root lead, and this lead is applied with a setting voltage (non-zero positive voltage, this magnitude of voltage is for making the magnitude of voltage of pilot lamp operate as normal).Also be provided with a pilot lamp on the probe button of every probe, this pilot lamp links to each other with the lead that is applied with a setting voltage.When all probes only linked to each other with the lead that is applied with a setting voltage, the pilot lamp corresponding with each probe understood shinny or do not worked.Shinny when pilot lamp, show that the probe of this pilot lamp correspondence and the circuit of earth point are in connected state; When pilot lamp does not work, show that the corresponding probe of this pilot lamp is in not connected state with the circuit of earth point, at this moment, the staff should check line conditions, finally guarantees all non-detection lines and is in connected state with reference to the circuit of earth point.When guaranteeing that all non-detection lines and circuit with reference to earth point are in connected state, all probes are linked to each other with the lead of ground connection, with the lead disconnection that is applied with a setting voltage.
Preferably, the lead of said ground connection respectively has a shift knob with being applied with on the lead of a setting voltage, is used for the connection status of pilot and probe.
Preferably, guaranteeing that all non-detection lines and circuit with reference to earth point are under the situation of connected state, the capacitance of measuring in the step 3 is unusual or can't measure capacitance, can check whether the probe corresponding with each golden finger contacts well with golden finger.If probe and golden finger loose contact or location skew; Can be through being arranged on the adjusting knob on the probe button; Regulate the residing position of end of probe; Can transfer or rightly transfer said adjusting knob with respect to a golden finger left side, contact fully with said golden finger up to the end of probe of said probe.Begin the electric capacity between the test probes line then.
Preferably; When said utility appliance has protective cover, when again determinand being put into the corresponding position of base, through regulating the screw and nut on the protective cover; Make protective cover away from base; Put into determinand this moment, and set screw and nut make protective cover near base then, and protective cover also plays determinand is folded in the effect between protective cover and the base.
Need to prove, the utility appliance of the capacitance measuring instrument that the utility model embodiment provides, the number of probe can go to set according to actual needs.The golden finger on determinand or the number of circuitry lines can design plurality purpose probe more for a long time.As long as guarantee that number of probes is greater than detection line on the determinand and non-detection line number sum.After placing determinand, be to leave the nearest probe of golden finger with the contacted probe of each golden finger.So generally speaking, the spacing between the golden finger is greater than the spacing between the probe on the utility appliance.Can guarantee that so said utility appliance can not omit any circuitry lines with all circuitry lines ground connection.
And the utility appliance of the capacitance measuring instrument that the utility model embodiment provides not only can the auxiliary capacitor surveying instrument be measured electric capacity, can be also be applied to any need be with the situation of conductor or bus ground connection.Perhaps need be with some bus ground connection, under the unsettled situation of some bus.So long as when measuring some electrical parameters, need the interference of the some other conductor of shielding, the utility appliance that just can utilize the utility model to provide realizes conductor ground connection.Convenient and easy the realization.
In sum; The utility model embodiment provides a kind of utility appliance of capacitance measuring instrument; Comprise base, be positioned at axostylus axostyle, at least one probe of taking on said axostylus axostyle that said base top links to each other with this base; This probe with link to each other with reference to earth point, the head of this probe contacts with the non-detection line of determinand, so that this non-detection line ground connection; Wherein, around said spindle rotation, separate with the non-detection line of determinand under the stressed outside effect of said probe up to the head of this probe.When needs are measured certain two electric capacity of surveying between the line, give these two to survey lines and apply external force, around said spindle rotation, separate with the non-detection line of determinand under the stressed outside effect of probe up to the head of this probe.The non-detection line ground connection that contacts with probe is played the effect with the circuitry lines ground connection that need not to measure electric capacity, can not influence the true capacitance of surveying between the line.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. the utility appliance of a capacitance measuring instrument is characterized in that, this utility appliance comprises:
Base, be positioned at axostylus axostyle, at least one probe of taking on said axostylus axostyle that said base top links to each other with this base; Each root probe with link to each other with reference to earth point; And under the downward pressure effect that puts on afterbody around said spindle rotation, its head is lifted from the contact position with the non-detection line of determinand.
2. utility appliance according to claim 1 is characterized in that, the afterbody of each root probe also is provided with the probe button of accepting downward pressure.
3. utility appliance according to claim 2 is characterized in that the below of each probe button is provided with buffer spring, and an end of this buffer spring links to each other with said probe button, and the other end links to each other with said base.
4. utility appliance according to claim 3; It is characterized in that; Also comprise: lay respectively at the other shackle member that is provided with the probe button of each probe button, each shackle member is fixed on base and receives at said probe button and to block said probe button when the external force effect is moved down into certain distance and can discharge the probe button that blocks.
5. according to claim 1,2,3 or 4 described utility appliance, it is characterized in that, also comprise: be positioned at said base top, with the protective cover of this base flexible connection.
6. utility appliance according to claim 5 is characterized in that, corresponding each root probe is provided with the watch window of certain area on the said protective cover.
7. utility appliance according to claim 6 is characterized in that, said protective cover is that screw and nut is connected with the flexible connection of base.
8. utility appliance according to claim 2 is characterized in that, also is provided with on each probe button to regulate the adjusting knob that probe turns an angle on the plane parallel with base.
9. utility appliance according to claim 2 is characterized in that, each root probe connects with reference to earth point through the first shared shift knob of all probes successively.
10. utility appliance according to claim 9 is characterized in that, each root probe is also successively through being positioned at the pilot lamp on the probe button, and the shared second switch button of all probes connects the voltage source of a setting voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237763 CN202583329U (en) | 2012-05-24 | 2012-05-24 | Auxiliary device of capacitance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237763 CN202583329U (en) | 2012-05-24 | 2012-05-24 | Auxiliary device of capacitance measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583329U true CN202583329U (en) | 2012-12-05 |
Family
ID=47252730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237763 Expired - Fee Related CN202583329U (en) | 2012-05-24 | 2012-05-24 | Auxiliary device of capacitance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583329U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353539A (en) * | 2013-06-25 | 2013-10-16 | 上海华力微电子有限公司 | Protective device for wafer test |
| CN104101743A (en) * | 2014-07-16 | 2014-10-15 | 北京京东方视讯科技有限公司 | Probe, circuit detecting device and method for detecting circuit |
| CN108803093A (en) * | 2018-05-24 | 2018-11-13 | 南京中电熊猫平板显示科技有限公司 | A kind of panel characteristics detection device |
| CN117192190A (en) * | 2023-11-08 | 2023-12-08 | 深圳市力容电子有限公司 | Capacitor voltage detection equipment and detection method |
-
2012
- 2012-05-24 CN CN 201220237763 patent/CN202583329U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353539A (en) * | 2013-06-25 | 2013-10-16 | 上海华力微电子有限公司 | Protective device for wafer test |
| CN103353539B (en) * | 2013-06-25 | 2016-03-02 | 上海华力微电子有限公司 | For the protective device of wafer sort |
| CN104101743A (en) * | 2014-07-16 | 2014-10-15 | 北京京东方视讯科技有限公司 | Probe, circuit detecting device and method for detecting circuit |
| CN104101743B (en) * | 2014-07-16 | 2017-03-29 | 北京京东方视讯科技有限公司 | The method of probe, line detection apparatus and detection circuit |
| CN108803093A (en) * | 2018-05-24 | 2018-11-13 | 南京中电熊猫平板显示科技有限公司 | A kind of panel characteristics detection device |
| CN108803093B (en) * | 2018-05-24 | 2021-05-11 | 南京中电熊猫平板显示科技有限公司 | Panel characteristic detection device |
| CN117192190A (en) * | 2023-11-08 | 2023-12-08 | 深圳市力容电子有限公司 | Capacitor voltage detection equipment and detection method |
| CN117192190B (en) * | 2023-11-08 | 2024-01-12 | 深圳市力容电子有限公司 | Capacitor voltage detection equipment and detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202583329U (en) | Auxiliary device of capacitance measuring instrument | |
| KR101091694B1 (en) | Inspection apparatus of touch panel | |
| KR101165456B1 (en) | Capacitive type touch detecting means, method and touch screen panel using voltage changing phenomenon, and display device embedding said the capacitive type touch screen panel | |
| KR101413087B1 (en) | Method and apparatus for inspecting touch sensor | |
| CN102955311B (en) | A kind of liquid crystal indicator of embedded touch control | |
| US20140375598A1 (en) | System and method to drive touch panel to measure hover | |
| KR20130022544A (en) | Capacitive pressure sensor and input device including thereof | |
| JP5160502B2 (en) | Capacitive touch panel | |
| CN205562604U (en) | Multi -functional veneer test system | |
| US20130314373A1 (en) | Touch detecting device using sensor pad scramble | |
| TW201316234A (en) | Integrated test system for a touch sensor | |
| CN106646202A (en) | Touch key circuit board function display and detection system | |
| WO2016082244A1 (en) | Touch panel and touch display device | |
| CN101989151A (en) | Optical touch screen | |
| US20130314374A1 (en) | Touch detecting device and method using group identification | |
| TW201528095A (en) | Touch screen and related touch sensing control circuit | |
| CN106771969A (en) | A kind of FPC touch screen base plate Open Short test devices and method | |
| WO2018028032A1 (en) | Semi-manufactured touch screen testing machine | |
| CN205068346U (en) | Touch display panel and touch display device | |
| KR101399009B1 (en) | Capacitive type touch detecting means, method and touch screen panel using voltage changing phenomenon, and display device embedding said the capacitive type touch screen panel | |
| CN102981686B (en) | A kind of method of capacitive touch screen architecture defects detection | |
| CN206270464U (en) | A kind of FPC touch screen base plate Open Short test devices | |
| CN105676053B (en) | A kind of touch screen defect detecting system | |
| CN103675489B (en) | Test system and method for testing applied to contactor control device | |
| TW200923744A (en) | Sensing device for capacitive touch screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150623 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150623 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20210524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |