CN203414560U - Device detecting polarity of shearing sheet - Google Patents
Device detecting polarity of shearing sheet Download PDFInfo
- Publication number
- CN203414560U CN203414560U CN201320480283.5U CN201320480283U CN203414560U CN 203414560 U CN203414560 U CN 203414560U CN 201320480283 U CN201320480283 U CN 201320480283U CN 203414560 U CN203414560 U CN 203414560U
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- Prior art keywords
- polarity
- insulcrete
- shearing sheet
- carrying plate
- plate
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- Expired - Fee Related
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Abstract
The utility model provides a device detecting the polarity of a shearing sheet. The device comprises a pedestal, a support, a fastening screw, an insulated hard block, an upper conductive plate, a lower conductive plate and a voltmeter, wherein one end of the support is fixed to the pedestal, the other end of the support is movably connected with the fastening screw, the upper end of the insulated hard block abuts against the fastening screw, the lower end of the insulated hard block abuts against the insulated plate, the lower portion of the insulated plate successively abuts against the upper conductive plate, a detected wafer, the lower conductive plate and the pedestal, and two electrode contacts of the voltmeter are respectively connected with the upper conductive plate and the lower conductive plate. The device detecting the polarity of the shearing sheet is characterized by simple structure, convenience, practicality, and high measuring accuracy, etc.
Description
Technical field
The utility model relates to polarity measurement device, especially relates to a kind of device of shearing sheet polarity of measuring.
Background technology
When crystal is subject to the used time of doing of external force in some direction, inside just produces electric polarization phenomenon, produces the electric charge that equivalent is contrary on certain two surface simultaneously; After external force removes, crystal returns to again uncharged state; When External Force Acting direction changes, the polarity of electric charge also changes thereupon; Stressed the produced quantity of electric charge of crystal is directly proportional to the size of external force.When quartz wafer is in the used time of doing that is subject to shearing force, it also can produce electric polarization phenomenon, yet quartz wafer is in the used time of doing that is subject to shearing force, what kind of its polarity is on earth, this need to just can measure by instrument, it is very complicated that traditional measurement is sheared the device of sheet polarity, and cost is very high, and uses very inconvenient.
Summary of the invention
The purpose of this utility model is: the problem existing for prior art, provide simple in structure, and the device of sheet polarity is sheared in convenient and practical measurement.
The purpose of this utility model is achieved through the following technical solutions:
A kind of device of shearing sheet polarity of measuring, it is characterized in that, this device comprises base, support, trip bolt, insulation lump, insulcrete, upper current-carrying plate, lower conducting plate and voltage table, one end of described support is fixed on base, the other end of support is flexibly connected with trip bolt, described insulation lump upper end butt trip bolt, insulation lump lower end butt insulcrete, described insulcrete below is current-carrying plate, tested wafer, lower conducting plate and base on butt successively, and two electrode contacts of described voltage table are connected on current-carrying plate and lower conducting plate.
Preferably, described insulation lump is plexiglass block.
Preferably, described insulcrete is the insulcrete that teflon material is made.
Preferably, described upper current-carrying plate and lower conducting plate is copper coin.
Preferably, the lower surface of described upper current-carrying plate and the upper surface of tested wafer overlap.
Compared with prior art, the utlity model has following advantage:
1, this apparatus structure is simple, practicality, and on market, do not have same device to sell;
2, be specially adapted to short run and measure, measurement accuracy is high;
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
embodiment
As shown in Figure 1, a kind of device of shearing sheet polarity of measuring, this device comprises base 1, support 2, trip bolt 8, insulation lump 7, insulcrete 6, upper current-carrying plate 5, lower conducting plate 3 and voltage table.Support 2 is inverted " L " shape, and its lower end is fixed on base 1, and between base 1, can be integral structure or welding or is flexibly connected.The upper end of support 2 is flexibly connected with trip bolt 8; Concrete, the upper end of support 2 is provided with screw, and trip bolt 8 is arranged in screw.When wafer is detected, the lower end of the upper end butt trip bolt 8 of insulation lump 7, the lower end butt insulcrete 6 of insulation lump 7.The main insulating effect that rises of insulation lump 7, prevents the measurement of below wafer to cause interference; Also need to have certain degree of hardness, and volume is large a little simultaneously, mainly for making below wafer stressed evenly, if there is no certain degree of hardness, when integral body screws by trip bolt 8, lump 7 distortion that can cause insulating, thus make wafer unbalance stress, impact test.Insulcrete 6 belows are current-carrying plate 5, tested wafer 4, lower conducting plate 3 and base 1 on butt successively.Two electrode contacts of voltage table are connected on current-carrying plate and lower conducting plate.The effect of insulcrete 6 is insulated exactly, and because the electric charge that wafer produces is less, so it must adopt the good material of insulation effect to make, the insulcrete of making as optional teflon material.Upper current-carrying plate 5, tested wafer 4, lower conducting plate 3 and voltage table form measurement main body jointly, tested wafer 4 produces electric polarization phenomenon under shearing force effect, thereby upper current-carrying plate 5, lower conducting plate 3 pass to voltage table by voltage signal, by voltage table just can measure wafer be subject to producing under shearing force effect polarity (be called for short shear sheet polarity).Sensitiveer in order to measure, upper current-carrying plate 5, lower conducting plate 3 can adopt copper coin, also can adopt electric conductivity other sheet metals preferably.
In order to make tested wafer 4 stressed evenly, the lower surface of upper current-carrying plate 5 overlaps with the upper surface of tested wafer 4.As when tested wafer 4 is patty, upper current-carrying plate 5 is also patty, and both diameters are the same.Lower conducting plate 3 had both played electric action, also play a supportive role, so its upper surface area was more preferably greater than the lower surface area of tested wafer 4 simultaneously.
During measurement, tested wafer 4 is placed between the lower conducting plate 3 of upper current-carrying plate 5 (as position in Fig. 1), trip bolt 8 is screwed, lead-in wire is drawn in side at upper current-carrying plate 5 and lower conducting plate 3, then gives from the side 5 one shearing forces of upper current-carrying plate (horizontal direction thrust), due to the interaction of power, on tested wafer 4, also can form shearing force, thereby tested wafer 4 surfaces produce electric charge, the lead-in wire output in process on current-carrying plate 5 and lower conducting plate 3, voltage table measures polarity.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. measure the device of shearing sheet polarity for one kind, it is characterized in that, this device comprises base, support, trip bolt, insulation lump, insulcrete, upper current-carrying plate, lower conducting plate and voltage table, one end of described support is fixed on base, the other end of support is flexibly connected with trip bolt, described insulation lump upper end butt trip bolt, insulation lump lower end butt insulcrete, described insulcrete below is current-carrying plate on butt successively, tested wafer, lower conducting plate and base, two electrode contacts of described voltage table are connected on current-carrying plate and lower conducting plate.
2. a kind of device of shearing sheet polarity of measuring according to claim 1, is characterized in that, described insulation lump is plexiglass block.
3. a kind of device of shearing sheet polarity of measuring according to claim 1, is characterized in that, described insulcrete is the insulcrete that teflon material is made.
4. a kind of device of shearing sheet polarity of measuring according to claim 1, is characterized in that, described upper current-carrying plate and lower conducting plate are copper coin.
5. a kind of device of shearing sheet polarity of measuring according to claim 1, is characterized in that, the lower surface of described upper current-carrying plate overlaps with the upper surface of tested wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480283.5U CN203414560U (en) | 2013-08-07 | 2013-08-07 | Device detecting polarity of shearing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480283.5U CN203414560U (en) | 2013-08-07 | 2013-08-07 | Device detecting polarity of shearing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414560U true CN203414560U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480283.5U Expired - Fee Related CN203414560U (en) | 2013-08-07 | 2013-08-07 | Device detecting polarity of shearing sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328804A (en) * | 2016-11-17 | 2017-01-11 | 河北建筑工程学院 | Multi-channel piezoelectric film polarization fixture |
| CN112731514A (en) * | 2020-12-22 | 2021-04-30 | 中国原子能科学研究院 | Base of measuring device |
-
2013
- 2013-08-07 CN CN201320480283.5U patent/CN203414560U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328804A (en) * | 2016-11-17 | 2017-01-11 | 河北建筑工程学院 | Multi-channel piezoelectric film polarization fixture |
| CN106328804B (en) * | 2016-11-17 | 2019-11-08 | 河北建筑工程学院 | The piezoelectric membrane polarization clamp of multichannel |
| CN112731514A (en) * | 2020-12-22 | 2021-04-30 | 中国原子能科学研究院 | Base of measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20210807 |