CN206531464U - A kind of standard strains analog meter - Google Patents
A kind of standard strains analog meter Download PDFInfo
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- CN206531464U CN206531464U CN201720250095.1U CN201720250095U CN206531464U CN 206531464 U CN206531464 U CN 206531464U CN 201720250095 U CN201720250095 U CN 201720250095U CN 206531464 U CN206531464 U CN 206531464U
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Abstract
The utility model is related to a kind of standard strain analog meter, gear is more, and the strain analog signal of small strain amount can be exported, the problem of solving conflicting in instrument portability and instrumental function, small volume is accomplished and function meets and is actually needed, and novel standard strain analog meter is all using the resistance of standard electric resistance, and by resistance, cleverly connection in series-parallel realizes that the dependent variable of integer value is exported.
Description
Technical field
The utility model is related to teaching and scientific research Instrument technology field, more particularly to a kind of standard strain analog meter.
Background technology
Standard strain analog meter is mainly used in completing reading data difference, the sensitivity coefficient error to static resistance deformeter,
Sensitivity coefficient error, the calibrated error of dynamic strain indicator, the verifying function such as amplitude response error, attenuated error.At present, it is existing
Standard strain analog meter be all completed by multiple driver plates (band switch) 1~10000 microstrain (μ ε) scope standard should
Variable is exported, and the output of 1~10 microstrain scope, 1 microstrain of stepping, a band switch control are controlled with a band switch
The output of 10~100 microstrain scopes is made, 10 microstrains of stepping a, band switch controls 100~1000 microstrain scopes
Output, 100 microstrains of stepping, band switch controls the output of 1000~10000 microstrain scopes, stepping 1000
Microstrain.The advantage of this kind equipment is exactly the standard strain letter that can export continuous, large-scale, stepping for 1 microstrain
Number, but because being made up of multiple driver plates, this has been resulted in, and equipment instrument and weight are all very big, and carrying is inconvenient, internal wiring
Complexity, production cost is high.Such general appearance size is 300 × 240 × 85 (mm), because modern static resistance deformeter, dynamic
The linearity of the state deformeter in measurement range is all very good, when using standard strain analog meter and being calibrated, is pair
Full scale is calibrated, and is not that each measured value will be calibrated, then stepping is the standard strain of 1 microstrain
Signal (1~10000 microstrain) in whole range ability just seems unnecessary.Then producer's design production just is only dialled by one
The mini standards strain simulation of disk composition, the advantage of this analog meter is small volume, and total amount is light, has the disadvantage that gear is few, and not
The strain analog signal of small strain amount can be exported, such as：Only 6 gears (0 microstrain, 200 microstrains, 500 microstrains,
1000 microstrains, 5000 microstrains, 10000 microstrains), it is impossible to export similar 1 microstrain, small letter as 10 microstrains
Number.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of standard strain analog meter, of the prior art to solve
It is not enough.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions：
There is provided a kind of standard strain analog meter includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th electricity
Resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd
Resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th
Resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, the 20th
Six resistance, the 27th resistance, the 28th resistance, the 29th resistance, the 30th resistance, the 31st resistance, the 30th
Two resistance, the 33rd resistance, the 34th resistance, the 35th resistance and the 36th resistance, it is the first resistor, described
Second resistance, the 14th resistance, the 22nd resistance, the 24th resistance, the 35th resistance and
34th resistance is sequentially connected in series, and the 3rd resistor and the second resistance simultaneously connect, the 23rd resistance and institute
State the 22nd resistance and connect, the 34th resistance and the 35th electricity after the 36th resistance and concatenation
Hinder and connect, be the first tie point between the first resistor and the second resistance, the first tie point connects the described 4th respectively
Resistance, the 6th resistance and the 8th resistance, the 4th resistance concatenate the 5th resistance, the 6th resistance and institute
State the 4th resistance and connect, the 7th resistance and the 5th resistance simultaneously connect, the second resistance and the 14th resistance it
Between be the second tie point, second tie point connect respectively the 9th resistance, the tenth resistance, it is described 12nd electricity
Resistance, the 16th resistance and the 19th resistance, the 9th resistance concatenate the 11st resistance, the tenth resistance
With the 9th resistance and connect, the 15th resistance and the 12nd resistance simultaneously connect, the 18th resistance and described
16 resistance simultaneously connect, and the 21st resistance and the 19th resistance simultaneously connect, the 14th resistance and the described 20th
It is the 3rd tie point in the middle of two resistance, the 3rd tie point connects the 25th resistance, the 27th electricity respectively
Resistance, the 30th resistance and the 31st resistance, the 25th resistance concatenate the 26th resistance, described
27th resistance concatenates the 28th resistance, and the 29th resistance and the 27th resistance simultaneously connect, described
31st resistance concatenate the 31st resistance after the 32nd resistance, the 33rd resistance and concatenation and
32nd resistance simultaneously connects, and the other end of the 5th resistance leads to 10000 μ E ends, the other end of the 8th resistance
5000 μ E ends are led to, the other end of the 11st resistance leads to 2000 μ E ends, and the other end of the 13rd resistance draws
Go out for 1000 μ E ends, the other end of the 17th resistance leads to 500 μ E ends, and the other end of the 20th resistance is led to
200 μ E ends, the other end of the 26th resistance leads to 100 μ E ends, and the other end of the 28th resistance is led to
50 μ E ends, the other end of the 30th resistance leads to 10 μ E ends, and the other end of the 32nd resistance leads to 1 μ E
End.
Above-mentioned standard strains analog meter, wherein, the first resistor, the second resistance, the 3rd resistor, described the
It is four resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, described
Tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the described tenth
Five resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the described 20th
It is resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, described
25th resistance, the 26th resistance, the 27th resistance, the 28th resistance, the described 29th
Resistance, the 30th resistance, the 31st resistance, the 32nd resistance, the 33rd resistance, described
The resistance value of 34 resistance, the 35th resistance and the 36th resistance is respectively 50 Ω, 20 Ω, 60 Ω, 500
Ω、1Ω、2000Ω、1Ω、910Ω、500Ω、6KΩ、1KΩ、500Ω、3KΩ、50Ω、40Ω、200Ω、6KΩ、3KΩ、
5.1KΩ、9.1KΩ、2KΩ、50Ω、50Ω、100Ω、120Ω、20Ω、2KΩ、1Ω、500Ω、2.5KΩ、910Ω、
18200 Ω, 510K Ω, 120 Ω, 120 Ω and 120 Ω.
Compared with the prior art, the beneficial effects of the utility model are：
Gear is more, and can export the strain analog signal of small strain amount, solves instrument portability and instrument work(
The problem of conflicting on energy, small volume is accomplished and function meets and is actually needed.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 shows that the utility model standard strains the structural representation of analog meter；
Fig. 2 shows that the utility model standard strains the principle of simulation figure of analog meter.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
With reference to shown in Fig. 1, the utility model standard strain analog meter, including first resistor R1, second resistance R2, the 3rd electricity
Hinder R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth electricity
Hinder R10, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15,
16th resistance R16, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 20th
One resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 25th resistance R25,
26 resistance R26, the 27th resistance R27, the 28th resistance R28, the 29th resistance R29, the 30th resistance R30,
31st resistance R31, the 32nd resistance R32, the 33rd resistance R33, the 34th resistance R34, the 35th resistance
R35 and the 36th resistance R36, first resistor R1, second resistance R2, the 14th resistance R14, the 22nd resistance R22, second
14 resistance R24, the 35th resistance R35 and the 34th resistance R34 are sequentially connected in series, and 3rd resistor R3 and second resistance R2 are simultaneously
Connect, the 23rd resistance R23 and the 22nd resistance R22 simultaneously connect, the 34th resistance after the 36th resistance R36 and concatenation
R34 and the 35th resistance R35 simultaneously connects, and is the first tie point, the first tie point point between first resistor R1 and second resistance R2
Not Lian Jie the 4th resistance R4, the 6th resistance R6 and the 8th resistance R8, the 4th resistance R4 concatenate the 5th resistance R5, the 6th resistance R6 and
4th resistance R4 simultaneously connects, and the 7th resistance R7 and the 5th resistance R5 simultaneously connect, and is second between second resistance R2 and the 14th resistance R14
Tie point, the second tie point connect respectively the 9th resistance R9, the tenth resistance R10, the 12nd resistance R12, the 16th resistance R16 and
19th resistance R19, the 9th resistance R9 concatenate the 11st resistance R11, the tenth resistance R10 and the 9th resistance R9 and connect, the 15th
Resistance R15 and the 12nd resistance R12 simultaneously connects, and the 18th resistance R18 and the 16th resistance R16 simultaneously connect, the 21st resistance R21 and
19th resistance R19 simultaneously connects, and is the 3rd tie point, the 3rd tie point point in the middle of the 14th resistance R14 and the 22nd resistance R22
Lian Jie not the 25th resistance R25, the 27th resistance R27, the 30th resistance R30 and the 31st resistance R31, the 25th
Resistance R25 concatenates the 26th resistance R26, the 27th resistance R27 concatenations the 28th resistance R28, the 29th resistance R29
With the 27th resistance R27 and connect, the 31st resistance R31 concatenates the 32nd resistance R32, the 33rd resistance R33 and string
The 31st resistance R31 and the 32nd resistance R32 after connecing simultaneously connect, and the 5th resistance R5 other end leads to 10000 μ E ends,
The 8th resistance R8 other end leads to 5000 μ E ends, and the 11st resistance R11 other end leads to 2000 μ E ends, the 13rd electricity
The resistance R13 other end leads to 1000 μ E ends, and the 17th resistance R17 other end leads to 500 μ E ends, the 20th resistance R20
The other end lead to 200 μ E ends, the 26th resistance R26 other end leads to 100 μ E ends, the 28th resistance R28's
The other end leads to 50 μ E ends, and the 30th resistance R30 other end leads to 10 μ E ends, the 32nd resistance R32 other end
Lead to 1 μ E ends.Specifically, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5,
Six resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd electricity
Hinder R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 17th resistance R17,
18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22,
23 resistance R23, the 24th resistance R24, the 25th resistance R25, the 26th resistance R26, the 27th resistance
R27, the 28th resistance R28, the 29th resistance R29, the 30th resistance 30, the 31st resistance R31, the 32nd resistance
R32, the 33rd resistance R33, the 34th resistance R34, the 35th resistance R35 and the 36th resistance R36 resistance value
Respectively 50 Ω, 20 Ω, 60 Ω, 500 Ω, 1 Ω, 2000 Ω, 1 Ω, 910 Ω, 500 Ω, 6K Ω, 1K Ω, 500 Ω, 3K Ω, 50
Ω、40Ω、200Ω、6KΩ、3KΩ、5.1KΩ、9.1KΩ、2KΩ、50Ω、50Ω、100Ω、120Ω、20Ω、2KΩ、1
Ω, 500 Ω, 2.5K Ω, 910 Ω, 18200 Ω, 510K Ω, 120 Ω, 120 Ω and 120 Ω.
Resistance strain gauge is, to measure the resistance relative change rate △ R/R of resistance strain gage, test specimen strain stress (ε to be measured indirectly
=△ L/L piece lengths relative change rate) instrument.When both arms change, the relative change rate △ R/R and the length of test specimen of resistance
Rate of change △ L/L are directly proportional, and can be represented with formula (1)：
ε=K × △ L/L=△ R/R (1)
In formula (1)：K is K=2.000 in sensitivity coefficient, this instrument
According to the relation of formula (1), the resistance change rate △ R/R of a standard can be produced with the method for electricity, to simulate
Standard strain value.For example：
I.e. each microstrain (μ ε) makes bridge resistance, change 2/1000000ths.
As shown in Fig. 2 artifical resistance value is 120 ohm of foil gauge, and when occurring microstrain (a μ ε), resistance variations hundred
2/10000ths circuit.When K sensitivity coefficients are 2, theoretical resistance during a microstrain occurs for 120 ohm of foil gauge
For：
R=120- (2X120)/106=119.99976
When R1=R2=120 ohm, R3=125 ohm, R4=115 ohm, at R5=25912 ohm, the electricity at AB two ends
=119.9997599 ohm of resistance, illustrates that upper figure circuit can simulate a microstrain (μ ε).R5=25912 ohm, the resistance is not
It is measuring resistance, is realized in practical application circuit using after 3 9100 resistant series with 510000 resistor coupled in parallel
The resistance of 25912 ohmic resistances.The problem of integer microstrain is exported is produced this addresses the problem application measuring resistance.Other class
Integer microstrain output by the method for the resistance value for changing resistance R5, change R5 resistance value by switching, AB two ends
Resistance will change, and realize the output of differently strained amount.
From above-described embodiment as can be seen that advantage of the present utility model is：
Gear is more, and can export the strain analog signal of small strain amount, solves instrument portability and instrument work(
The problem of conflicting on energy, small volume is accomplished and function meets and is actually needed.
Specific embodiment of the utility model is described in detail above, but the utility model is not restricted to the above
The specific embodiment of description, it is intended only as example.To those skilled in the art, any equivalent modifications and substitute also all
Among category of the present utility model.Therefore, the impartial conversion made in the case where not departing from spirit and scope of the present utility model
And modification, it should all cover in the range of the utility model.
Claims (2)
1. a kind of standard strains analog meter, it is characterised in that including first resistor, second resistance, 3rd resistor, the 4th resistance,
5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance,
13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance,
20th resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance,
26th resistance, the 27th resistance, the 28th resistance, the 29th resistance, the 30th resistance, the 31st resistance,
32nd resistance, the 33rd resistance, the 34th resistance, the 35th resistance and the 36th resistance, first electricity
Resistance, the second resistance, the 14th resistance, the 22nd resistance, the 24th resistance, the described 35th
Resistance and the 34th resistance are sequentially connected in series, and the 3rd resistor and the second resistance simultaneously connect, the 23rd electricity
Resistance and the 22nd resistance simultaneously connect, the 34th resistance and the described 3rd after the 36th resistance and concatenation
15 resistance simultaneously connect, and are the first tie point between the first resistor and the second resistance, and first tie point connects respectively
Connect the 4th resistance, the 6th resistance and the 8th resistance, the 4th resistance concatenates the 5th resistance, described the
Six resistance and the 4th resistance simultaneously connect, and the 7th resistance and the 5th resistance simultaneously connect, the second resistance and described
It is the second tie point between 14 resistance, second tie point connects the 9th resistance respectively, the tenth resistance, described
12nd resistance, the 16th resistance and the 19th resistance, the 9th resistance concatenate the 11st resistance, described
Tenth resistance and the 9th resistance simultaneously connect, and the 15th resistance and the 12nd resistance simultaneously connect, the 18th resistance
With the 16th resistance and connect, the 21st resistance and the 19th resistance simultaneously connect, the 14th resistance and institute
It is the 3rd tie point to state in the middle of the 22nd resistance, and the 3rd tie point connects the 25th resistance, described the respectively
27 resistance, the 30th resistance and the 31st resistance, the 25th resistance concatenation the described 26th
Resistance, the 27th resistance concatenates the 28th resistance, the 29th resistance and the 27th resistance
And connect, the 31st resistance concatenates the described 3rd after the 32nd resistance, the 33rd resistance and concatenation
11 resistance and the 32nd resistance simultaneously connect, and the other end of the 5th resistance leads to 10000 μ E ends, the 8th electricity
The other end of resistance leads to 5000 μ E ends, and the other end of the 11st resistance leads to 2000 μ E ends, the 13rd resistance
The other end lead to 1000 μ E ends, the other end of the 17th resistance leads to 500 μ E ends, the 20th resistance it is another
One end leads to 200 μ E ends, and the other end of the 26th resistance leads to 100 μ E ends, the 28th resistance it is another
One end leads to 50 μ E ends, and the other end of the 30th resistance leads to 10 μ E ends, the other end of the 32nd resistance
Lead to 1 μ E ends.
2. standard as claimed in claim 1 strains analog meter, it is characterised in that the first resistor, the second resistance, described
3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, institute
State the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the described tenth
Four resistance, the 15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the described 19th
Resistance, the 20th resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, described
24 resistance, the 25th resistance, the 26th resistance, the 27th resistance, the 28th electricity
Resistance, the 29th resistance, the 30th resistance, the 31st resistance, the 32nd resistance, the described 3rd
13 resistance, the 34th resistance, the resistance value of the 35th resistance and the 36th resistance are respectively 50
Ω、20Ω、60Ω、500Ω、1Ω、2000Ω、1Ω、910Ω、500Ω、6KΩ、1KΩ、500Ω、3KΩ、50Ω、40Ω、
200Ω、6KΩ、3KΩ、5.1KΩ、9.1KΩ、2KΩ、50Ω、50Ω、100Ω、120Ω、20Ω、2KΩ、1Ω、500Ω、
2.5K Ω, 910 Ω, 18200 Ω, 510K Ω, 120 Ω, 120 Ω and 120 Ω.
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| CN201720250095.1U CN206531464U (en) | 2017-03-15 | 2017-03-15 | A kind of standard strains analog meter |
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|---|---|---|---|
| CN201720250095.1U CN206531464U (en) | 2017-03-15 | 2017-03-15 | A kind of standard strains analog meter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007334A (en) * | 2017-12-08 | 2018-05-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | The step response characteristic measurement method and device of a kind of resistance strain measurement instrument |
| CN109342251A (en) * | 2018-12-06 | 2019-02-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | It is a kind of for straining the self-checking device and method of quantity collection system |
| CN109682532A (en) * | 2018-12-06 | 2019-04-26 | 北京强度环境研究所 | Strain calibration facility for large space structure pilot system |
| CN114508995A (en) * | 2022-01-20 | 2022-05-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | Step response characteristic calibration device and method of resistance strain measuring instrument |
-
2017
- 2017-03-15 CN CN201720250095.1U patent/CN206531464U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007334A (en) * | 2017-12-08 | 2018-05-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | The step response characteristic measurement method and device of a kind of resistance strain measurement instrument |
| CN109342251A (en) * | 2018-12-06 | 2019-02-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | It is a kind of for straining the self-checking device and method of quantity collection system |
| CN109682532A (en) * | 2018-12-06 | 2019-04-26 | 北京强度环境研究所 | Strain calibration facility for large space structure pilot system |
| CN114508995A (en) * | 2022-01-20 | 2022-05-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | Step response characteristic calibration device and method of resistance strain measuring instrument |
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