CN207816509U - A kind of power and position label means - Google Patents
A kind of power and position label means Download PDFInfo
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- CN207816509U CN207816509U CN201721886158.9U CN201721886158U CN207816509U CN 207816509 U CN207816509 U CN 207816509U CN 201721886158 U CN201721886158 U CN 201721886158U CN 207816509 U CN207816509 U CN 207816509U
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Abstract
The utility model is related to a kind of power and position label means, including shell, pcb board is set in shell, pcb board is equipped with power supply interface module, the output end of power supply interface module is separately connected the input terminal of zeroing module and the input terminal of prime amplification module, the output end for the module that returns to zero and the output end of prime amplification module are separately connected the input terminal of rear class amplification module, the output end of rear class amplification module connects the input terminal of reversed output module in proportion, the input terminal of the output end connection first-order low-pass wave module of reversed output module in proportion, the input terminal of the output end connection AD conversion module of first-order low-pass wave module, the input terminal of the output end connection display module of AD conversion module.The accurate position coordinates for measuring probe press points but also the size that can accurately measure pressing force simultaneously；And operation is very easy, timeliness is strong, size is small and exquisite, cost is relatively low, and the advantage that can be exported by digital display screen and USB both of which.
Description
Technical field
The utility model belongs to pressure test technological improvement field more particularly to a kind of power and position label means.
Background technology
At present in automation industry, we usually need to know the repeatability or mobile accuracy of some axis, now routine hand
Section generally uses industry camera, scaling board or other specialized instrument and equipments, these methods all not simple easy to use enough.Example
If industry camera will demarcate the repeatability or mobile accuracy of Z axis, cost of investment is higher；Use the cumbersome essence of scaling board proving operation
Spend relatively low, and timeliness is relatively low；If using professional position measuring instrument, for example, 3 axis laser interferometer, a period of time cost of investment
It is higher, cumbersome, volume is too big, be only suitable for laboratory environment use, can not be in production plant's large-scale use.
In many electronic product test equipments, often need the repeatability for demarcating Z axis simultaneously and mobile accuracy and Z axis by
Pressure size, and require calibrating instrument small volume and easy to use；Traditional scaling method can only solve wherein single demand, need
Position and power are demarcated simultaneously, can solve this industry problems simultaneously without good product at present.
Utility model content
The purpose of this utility model is to provide a kind of power and position label means, it is intended to solve above-mentioned technical problem.
The utility model is realized in this way a kind of power and position label means, the power include with position label means
Shell and pcb board, the pcb board are disposed in the housing, and the pcb board is equipped with zeroing module, prime amplification module, rear class
Amplification module, in proportion reversed output module, first-order low-pass wave module, AD conversion module, display module and power interface mould
Block, the output end of the power supply interface module are separately connected the input of the input terminal and prime amplification module of the zeroing module
End, the output end of the zeroing module and the output end of prime amplification module are separately connected the input of the rear class amplification module
End, the input terminal of the output end connection reversed output module in proportion of the rear class amplification module, it is described in proportion reversely
The output end of output module connects the input terminal of the first-order low-pass wave module, the output end of the first-order low-pass wave module
The input terminal of the AD conversion module is connected, the output end of the AD conversion module connects the input terminal of the display module.
The further technical solution of the utility model is：The prime amplification module include foil gauge, adjustable resistance VR2 and
Chip U1, one end of the foil gauge connect the+IN feet of the chip U1, and the other end of the foil gauge connects the chip U1
- IN feet, the RG1 feet of the chip U1 connect one end of the adjustable resistance VR2, described in the RG2 feet connection of the chip U1
+ VS the feet of the other end of adjustable resistance VR2, the chip U1 connect the output+12V of the power supply interface module, the chip
- VS the feet of U1 connect the output -12V of the power supply interface module.
The further technical solution of the utility model is：The chip U1 is using AD620 chips.
The further technical solution of the utility model is：The rear class amplification module includes amplifier U3, resistance R3, resistance
R4, resistance R5 and resistance R6, the amplifier U3-input terminal be separately connected one end of the resistance R3, resistance R4 one end
And one end of resistance R5, the amplifier U3+input terminal connects one end of the resistance R6, another termination of the resistance R6
Ground, the other end of the resistance R5 connect the OUTPUT feet of the chip U1.
The further technical solution of the utility model is：The output module reversed in proportion includes amplifier U4, resistance
R7, resistance R8 and resistance R9, the amplifier U4-input terminal be separately connected the resistance R8 one end and resistance R7 one
End, the amplifier U3+input terminal connects one end of the resistance R9, the other end ground connection of the resistance R9, the resistance
The other end of R8 is separately connected the output end of the amplifier U3 and the other end of resistance R3, the other end of the resistance R7 and puts
The output end of big device U4 is separately connected the input terminal of the first-order low-pass wave module.
The further technical solution of the utility model is：The zeroing module includes amplifier U2 and resistor VR1, described
Amplifier U2+input terminal connects the adjustable end of the resistor VR1, one end of the resistor VR1 connects the power supply and connects
The other end of the output+12V, the resistor VR1 of mouth mold block connect the output -12V of the power supply interface module, the amplification
The output end of device U2 and amplifier U2-input terminal is separately connected the other end of the resistance R4.
The further technical solution of the utility model is：The amplifier U2, amplifier U3 and amplifier U4 are all made of
TLO74C amplifiers.
The further technical solution of the utility model is：The shell includes back box and upper cover, and the upper cover passes through screw
It is fixed in the back box.
The further technical solution of the utility model is：One end of the upper cover be equipped with a through-hole, the upper cover it is another
One end is equipped with a rectangular groove.
The further technical solution of the utility model is：The lower side panel of the back box is equipped with through-hole and electric power connecting mouth,
The avris plate of the back box is equipped with a button cover board.
The utility model has the beneficial effects that：Accurate position coordinates for measuring probe press points but also can be accurate simultaneously
Measure the size of pressing force；And operation is very easy, timeliness is strong, size is small and exquisite, cost is relatively low, and can be shown by number
Screen and the advantage of USB both of which output.
Description of the drawings
Fig. 1 is three force snesors of the utility model embodiment offer into the schematic diagram one of equilateral triangle mode.
Fig. 2 is three force snesors of the utility model embodiment offer into the schematic diagram two of equilateral triangle mode.
Fig. 3 is the structural schematic diagram of power and position label means that the utility model embodiment provides.
Fig. 4 is the electrical structure block diagram that the utility model embodiment provides.
Fig. 5 is the electrical structure schematic diagram that the utility model embodiment provides.
Specific implementation mode
Reference numeral：
As shown in Figure 1, power provided by the utility model and position label means, the power and position label means include shell
Body and pcb board, the pcb board are disposed in the housing, and the pcb board is equipped with zeroing module, prime amplification module, rear class and puts
Big module, in proportion reversed output module, first-order low-pass wave module, AD conversion module, display module and power supply interface module,
The output end of the power supply interface module is separately connected the input terminal of the zeroing module and the input terminal of prime amplification module, institute
The output end of the output end and prime amplification module of stating zeroing module is separately connected the input terminal of the rear class amplification module, described
The input terminal of reversed output module in proportion, the output module reversed in proportion described in the output end connection of rear class amplification module
Output end connect the input terminal of the first-order low-pass wave module, described in the output end connection of the first-order low-pass wave module
The input terminal of AD conversion module, the output end of the AD conversion module connect the input terminal of the display module.
The prime amplification module includes foil gauge, adjustable resistance VR2 and chip U1, and one end of the foil gauge connects institute
+ IN the feet of chip U1 are stated, the other end of the foil gauge connects the-IN feet of the chip U1, the RG1 feet connection of the chip U1
One end of the adjustable resistance VR2, the RG2 feet of the chip U1 connect the other end of the adjustable resistance VR2, the chip U1
+ VS feet connect the output+12V of the power supply interface module ,-VS the feet of the chip U1 connect the power supply interface module
Output -12V.
The chip U1 is using AD620 chips.
The rear class amplification module includes amplifier U3, resistance R3, resistance R4, resistance R5 and resistance R6, the amplifier
U3-input terminal is separately connected one end of one end of the resistance R3, one end of resistance R4 and resistance R5, the amplifier U3's
+ input terminal connects one end of the resistance R6, and the other end of the resistance R6 is grounded, described in the other end connection of the resistance R5
The OUTPUT feet of chip U1.
The output module reversed in proportion includes amplifier U4, resistance R7, resistance R8 and resistance R9, the amplifier U4
- input terminal is separately connected one end of the resistance R8 and one end of resistance R7, the amplifier U3+input terminal connection described in
One end of resistance R9, the other end ground connection of the resistance R9, the other end of the resistance R8 are separately connected the amplifier U3's
It is low that the other end of output end and resistance R3, the other end of the resistance R7 and the output end of amplifier U4 are separately connected the single order
The input terminal of pass filtering module.
The zeroing module include amplifier U2 and resistor VR1, the amplifier U2+input terminal connects the resistance
The one end at the adjustable end of device VR1, the resistor VR1 connects the output+12V, the resistor VR1 of the power supply interface module
The other end connect the power supply interface module output-12V, the amplifier U2 output end and amplifier U2-input
End is separately connected the other end of the resistance R4.
The amplifier U2, amplifier U3 and amplifier U4 are all made of TL074C amplifiers.
The shell includes back box 10 and upper cover 20, and the upper cover 20 is fixed on by screw in the back box 10.
One end of the upper cover 20 is equipped with a through-hole 201, and the other end of the upper cover 20 is equipped with a rectangular groove
202。
The lower side panel of the back box 10 is equipped with through-hole 201 and electric power connecting mouth 102, is set on the avris plate of the back box 10
There is a button cover board 101.
Power needs to realize that power is accurately measured with while position with location position module, and its displacement measurement accuracy is required to exist
Within ± 0.02mm；And the compact of equipment is required, highly it is less than 35mm hereinafter, to facilitate calibration facility that can facilitate in equipment
Middle application.
It is understood that the Accurate Calibration for doing power is more convenient, it is only necessary to apply the higher force snesor of precision；But it wants
The accurately measurement for doing displacement is relatively difficult, is normally applied vision calibration or other measuring apparatus.It is difficult in this way while realizes power
With the measurement of position, and equipment volume is made small.
This product creatively does equilateral triangle arrangement using high-precision force sensor, is calculated by principle, Ke Yishi
While now measuring pressing force simultaneously, and measure the coordinate of press points；Having well solved only can be same by force snesor
When calibrated force and coordinate theoretical puzzle.But equipment is done it is more small and exquisite, especially height to accomplish 35mm or less then
Difficulty is bigger, because high-precision force sensor height available on the market is all relatively high, the height of many optical sensors
35mm is all had been over, requirement is cannot be satisfied.We devise a integrated cloth in equilateral triangle by research of technique
The problem of high-precision force sensor set, the height of sensor only only has 4mm, well solved high-precision sensor.But
It is understood that high-precision force sensor is wanted to realize that high-acruracy survey, mating small signal amplifier are also extremely important, mesh
Preceding is difficult to have the amplifier for meeting amplification precision up to thousand-island forest park than volume very little in the market.Standard to this technological difficulties,
We are engaged the small signal high precision amplifying circuit of three tunnel millivolt levels and AD D/A converting circuit modules to one by research of technique
In a PCB circuit board, successfully solve small signal amplification circuit and digital-to-analog circuit integration problem, and establish for product miniaturization
Solid foundation, small signal high precision amplifying circuit.
Just because of above several big difficult points have been captured, product is just smoothly researched and developed successfully, and finished product is illustrated in fig. 3 shown below.
The key technical indexes：
Long x wide x high：140mm x 82mm x 33mm
Measuring range：1g-1kg
Relative displacement precision：±0.02mm
Minimum response quality：100mg
Power error rate：0.9%
Transducer sensitivity：1.5 ± 10%mV/V
Powered types：USB
Signal output form：USB, screen digital display
The Computing Principle of this programme is as follows：
Present design is arranged using three high-precision force sensors are in equilateral triangle, when Z axis probe presses this
When inside equilateral triangle, pass through the support reaction of three high-precision force sensors output, you can to calculate probe in this triangle
Position coordinates in shape；The support reaction resultant force of three force snesor outputs is the size of Z axis probe pressing force.
In equilateral triangle, a unknown force presses in triangle interior region, if component Fa, Fb of each fulcrum,
The size of Fc is it is known that can then find out the coordinate value (x, y) of total power F and press points；The size of each fulcrum power passes through force snesor
It measures；Coordinate O " as shown in Figure 1, 2 is established, then the coordinate of press points O and pressing force size F expression formulas are as follows：
F=FA+FB+FC+ G,
Explanation：F：Total power, unit N are pressed for probe；
x0：For the abscissa value of probe press points, unit mm；
y0：For the ordinate value of probe press points, unit mm；
G：For the weight of the support plate on three force snesors, unit N.
The coordinate value and pressing force that primary press points can be calculated by the above calculation formula, when axis moves a spacing
From rear, pressed again at trigonum region, then can calculate the coordinate value and pressing force of another point, pass through at this this 2 points
Coordinate can calculate mobile distance value size.
The application in order to meet the total height of product and and sensor accuracy high characteristic, a cantilever beam of independent development and
Three integrated force snesors of beam, effectively meet design requirement.And existing high-precision force sensor height is equal in the market
It is higher, it cannot achieve device miniaturization or be difficult to meet total design range.
Force sensor amplifier precision is generally centesimal precision in the market, it is difficult to meet our one thousandths
Accuracy requirement, the independent development of the present invention millivolt level small signal amplification circuit of thousand-island forest park.
The signal amplifier volume of force sensor is generally large in the market, and is to separate sale, it is difficult to the ratio done
It is smaller.And the volume of AD analog-digital converters is also larger；For the present invention in order to realize the small and exquisite and easy to use of equipment, the present invention will
The amplifying circuit and AD circuits of three high-precision force sensors have carried out highly integrated, so that the volume of equipment is minimized and have laid heavily fortified point
Real basis.
Product can be by digital display screen and the output of USB both of which as a result, easy to use.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of power and position label means, it is characterised in that：The power and position label means include shell and pcb board, institute
Pcb board is stated to be disposed in the housing, the pcb board be equipped with zeroing module, prime amplification module, rear class amplification module, on year-on-year basis
The reversed output module of example, first-order low-pass wave module, AD conversion module, display module and power supply interface module, the power supply connect
The output end of mouth mold block is separately connected the input terminal of the zeroing module and the input terminal of prime amplification module, the zeroing module
Output end and the output end of prime amplification module be separately connected the input terminal of the rear class amplification module, the rear class amplifies mould
The input terminal of reversed output module, the output end of the output module reversed in proportion connect in proportion described in the output end connection of block
The input terminal of the first-order low-pass wave module is connect, the output end of the first-order low-pass wave module connects the AD conversion module
Input terminal, the output end of the AD conversion module connects the input terminal of the display module.
2. power according to claim 1 and position label means, which is characterized in that the prime amplification module includes strain
Piece, adjustable resistance VR2 and chip U1, one end of the foil gauge connect the+IN feet of the chip U1, the foil gauge it is another
End connects the-IN feet of the chip U1, and the RG1 feet of the chip U1 connect one end of the adjustable resistance VR2, the chip U1
RG2 feet connect the other end of the adjustable resistance VR2 ,+VS the feet of the chip U1 connect the defeated of the power supply interface module
Go out+12V,-VS the feet of the chip U1 connect the output -12V of the power supply interface module.
3. power according to claim 2 and position label means, which is characterized in that the chip U1 is using AD620
Chip.
4. power according to claim 2 and position label means, which is characterized in that the rear class amplification module includes amplification
Device U3, resistance R3, resistance R4, resistance R5 and resistance R6, the amplifier U3-input terminal is separately connected the one of the resistance R3
End, one end of resistance R4 and resistance R5 one end, the amplifier U3+input terminal connects one end of the resistance R6, described
The other end of resistance R6 is grounded, and the other end of the resistance R5 connects the OUTPUT feet of the chip U1.
5. power according to claim 4 and position label means, which is characterized in that the output module packet reversed in proportion
Include amplifier U4, resistance R7, resistance R8 and resistance R9, the amplifier U4-input terminal is separately connected the one of the resistance R8
End and one end of resistance R7, the amplifier U3+input terminal connects one end of the resistance R9, the other end of the resistance R9
Ground connection, the other end of the resistance R8 are separately connected the output end of the amplifier U3 and the other end of resistance R3, the resistance
The other end of R7 and the output end of amplifier U4 are separately connected the input terminal of the first-order low-pass wave module.
6. power according to claim 5 and position label means, which is characterized in that the zeroing module includes amplifier U2
And resistor VR1, the amplifier U2+input terminal connects the adjustable end of the resistor VR1, the one of the resistor VR1
End connects the output+12V of the power supply interface module, and the other end of the resistor VR1 connects the power supply interface module
The output end of output-12V, the amplifier U2 and amplifier U2-input terminal is separately connected the other end of the resistance R4.
7. power according to claim 6 and position label means, which is characterized in that the amplifier U2, amplifier U3 and
Amplifier U4 is all made of TL074C amplifiers.
8. according to claim 1-7 any one of them power and position label means, which is characterized in that the shell includes back box
And upper cover, the upper cover are fixed on by screw in the back box.
9. power according to claim 8 and position label means, which is characterized in that it is logical that one end of the upper cover is equipped with one
The other end in hole, the upper cover is equipped with a rectangular groove.
10. power according to claim 9 and position label means, which is characterized in that the lower side panel of the back box is equipped with
The avris plate of through-hole and electric power connecting mouth, the back box is equipped with a button cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721886158.9U CN207816509U (en) | 2017-12-28 | 2017-12-28 | A kind of power and position label means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721886158.9U CN207816509U (en) | 2017-12-28 | 2017-12-28 | A kind of power and position label means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816509U true CN207816509U (en) | 2018-09-04 |
Family
ID=63328445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721886158.9U Active CN207816509U (en) | 2017-12-28 | 2017-12-28 | A kind of power and position label means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007340A (en) * | 2020-08-07 | 2020-12-01 | 杭州电子科技大学 | Table tennis match referee and player training system and method based on acceleration sensor |
-
2017
- 2017-12-28 CN CN201721886158.9U patent/CN207816509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007340A (en) * | 2020-08-07 | 2020-12-01 | 杭州电子科技大学 | Table tennis match referee and player training system and method based on acceleration sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A force and position calibration device Effective date of registration: 20210609 Granted publication date: 20180904 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: SHENZHEN COLIBRI TECHNOLOGIES Co.,Ltd. Registration number: Y2021980004562 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |