CN107727154A - A kind of wide-range sensitivity self-adapting measuring method and measurement apparatus - Google Patents
A kind of wide-range sensitivity self-adapting measuring method and measurement apparatus Download PDFInfo
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- CN107727154A CN107727154A CN201711185690.2A CN201711185690A CN107727154A CN 107727154 A CN107727154 A CN 107727154A CN 201711185690 A CN201711185690 A CN 201711185690A CN 107727154 A CN107727154 A CN 107727154A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
Abstract
The invention belongs to technique of dynamic measurement field, is related to a kind of wide-range sensitivity self-adapting measuring method and measurement apparatus.A kind of wide-range sensitivity self-adapting measuring method proposed：By a wide range ability by from being as low as divided into multiple range sections greatly；The sensor of corresponding appropriate sensitivity is respectively configured in each range section；Amplification amplitude limiter circuit is prepared for the sensor of each range section；Each suitable output signal for adjusting amplification amplitude limiter circuit same is input to adder circuit；The output signal of adder is converted to data signal storage after being gathered by data acquisition circuit.Inaccurate or measurement overload problem is measured when the present invention solves on-the-spot test caused by it can not predefine measured parameter scope.
Description
Technical field
The invention belongs to technique of dynamic measurement field, more particularly to a kind of wide-range sensitivity self-adapting measuring method and
Measurement apparatus.
Background technology
Blast impulse wave pressure, vibrate and object construction damage etc. parameter measurement be carry out weaponry power examine
The important foundation of assessment is injured in core and progress battlefield；When carrying out brisance and damage parameter test at the scene, typically in big gun
Bomb estimated position position injures objectives of examination position and nearby lays Sensor, but because the drop point of big gun bomb is specific
Position is not known, and the effect parameter on each point position is very big from the close duration of measuring point in big gun bomb drop point；The remote duration of drop point
With regard to small, therefore the range ability of sensor laid can not be just determined, if using the sensor of wide range, when drop point is far joined
Numerical value hour with regard to indeterminacy, such as uses the sensor of small-range, then when drop point is near, sensor output will overload and not detect
Actual parameter；Currently used method is the sensor for including different ranges in the laying of each point position, passes through these sensings
Device collects available effect parameter signal.The shortcomings that this method is that each sensor needs a supporting data acquisition channel,
It can so cause measuring system huge, measuring point laying workload is big, testing cost increase.Big to parameter quantities range is another
A kind of outer measuring method is to set range switch, after the size of the value of identification parameter by switch the suitable range of selection come
Accurate measurement is carried out to parameter, this method is suitable for static parameter measurement, for changing violent dynamic parameter, due to selected amount
Cheng Kaiguan needs the regular hour, and this method is not suitable for dynamic and measured.Therefore, surveyed at weapon blast damage effect parameter scene
, it is necessary to a kind of measuring method and measurement apparatus that can adapt to different range abilities during examination.
The content of the invention
The purpose of the present invention is to propose to a kind of wide-range sensitivity self-adapting measuring method and measurement apparatus, can solve
Effect parameter is not easy the problem measured caused by big gun bomb drop point is uncertain in weapon brisance and damage parameter test.
A kind of wide-range sensitivity self-adapting measuring method, the measuring method comprise the following steps that：
S1：By a wide range ability by from being as low as divided into multiple range sections greatly；
S2：The sensor of corresponding appropriate sensitivity is respectively configured in each range section；
S3：Tune amplification amplitude limiter circuit is fitted for the sensor configuration of each range section；
S4：Each suitable output signal for adjusting amplification amplitude limiter circuit is uniformly input to adder circuit；
S5：The output signal of adder is converted to data signal storage after being gathered by data acquisition circuit.
Described range section is 3~5.
Described sensor is that the effects such as measurement pressure, acceleration, deformation or the temperature used in damage effect experiment are moved
The sensor of state parameter.
Described suitable tune amplification amplitude limiter circuit has for the type with the sensor being adapted to, sensitivity, frequency response range etc.
What is closed has the output signal conditioning amplification of sensor and the circuit of amplitude limit function.
Described adder circuit is to use integrated computation circuit with what suitable tune amplification amplitude limiter circuit frequency range was adapted
The circuit with addition function of design.
Described data acquisition storage circuit can be the modular small storage tester using STORAGE MEASUREMENT TECHNIQUE,
It can be the dynamic data acquiring instrument of commercialization.
Using the above method invent a kind of wide-range sensitivity self-adapting measuring apparatus, including measurement apparatus housing and
Sensor, suitable tune amplification amplitude limiter circuit, adder circuit and the data store circuit being packaged in housing.Described sensing
Device is to be installed on multiple sensors of the same housing with the different sensitivity of the same physical parameter of measurement on end face；It is corresponding every
Individual described sensor is provided with suitable adjust and amplifies amplitude limiter circuit；Sensor is experienced tested by described suitable tune amplification amplitude limiter circuit
Output conditioning after parameter is enlarged into the appropriate voltage signal of amplitude, by the defeated of sensor in the range section of corresponding sensor
Nurse one's health amplification with going out linearly, during beyond the range section of the sensor output for a fixed amplitude voltage signal；It is multiple suitable
The voltage for adjusting amplification amplitude limiter circuit to be exported is sent into adder circuit, and multiple suitable voltages for adjusting amplification amplitude limiter circuit to be exported
Maximum sum should not exceed the maximum input level required by described adder circuit；Described adder circuit will be described
It is all it is suitable adjust amplification amplitude limiter circuits export addition after export be all the way signal to described data acquisition storage circuit.
The present invention proposes a kind of wide-range sensitivity self-adapting measuring method and measurement apparatus, using above-mentioned technical proposal,
In the case of without using range shift switch, with the effect parameter in suitable sensitivity measure difference range ability, it is adapted to
Measured parameter magnitude variations are big when in-site measurement and the unascertainable dynamic parametric test occasion of scope, solve on-the-spot test
When inaccurate or measurement overload problem is measured caused by it can not predefine measured parameter scope.
Brief description of the drawings
Fig. 1 is a kind of wide-range sensitivity self-adapting measuring method flow chart.
Fig. 2 is a kind of wide-range sensitivity self-adapting measuring apparatus schematic diagram.
Fig. 3 is the adaptive shock wave pressure measurement apparatus schematic diagram of 100MPa sensitivity.
Fig. 4 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 1MPa pressure sensors.
Fig. 5 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 10MPa pressure sensors.
Fig. 6 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 100MPa pressure sensors.
Fig. 7 is the input-output characteristic schematic diagram of 100MPa shock wave pressure measurement apparatus.
Fig. 8 is 10000g sensitivity self adaptable acceleration measurement apparatus schematic diagrames.
Fig. 9 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 100g acceleration transducers.
Figure 10 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 1000g acceleration transducers.
Figure 11 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 5000g acceleration transducers.
Figure 12 is the suitable characteristic schematic diagram for adjusting amplification amplitude limiter circuit of 10000g acceleration transducers.
Figure 13 is the input-output characteristic schematic diagram of 10000g acceleration measurement devices.
In figure：1 sensor；1-1 sensors 1；1-2 sensors 2；1-n sensors n；2 suitable adjust amplify amplitude limiter circuit；
2-1 is suitable to adjust amplification amplitude limiter circuit 1；2-2 is suitable to adjust amplification amplitude limiter circuit 2；2-n is suitable to adjust amplification amplitude limiter circuit n；3 adders electricity
Road；4 data acquisition storage circuits.
Embodiment
The present invention is elaborated below in conjunction with the accompanying drawings：
As shown in Fig. 2 a kind of wide-range sensitivity according to a kind of invention of wide-range sensitivity self-adapting measuring method is adaptive
Measurement apparatus, described measurement apparatus include sensor 1（Containing multiple sensor 1-1~1-n）, suitable adjust amplification amplitude limiter circuit 2（Contain
Multiple suitable adjust amplify amplitude limiter circuit 2-1~2-n）, adder circuit 3 and data store circuit 4.Multiple sensor 1-
1~1-n is the same physical parameter of measurementxDifferent ranges sensor；Described suitable tune amplifies amplitude limiter circuit 2-1~2-n
Sensor 1-1~1-n is experienced into tested parameterxOutput afterwardsv 1~v nLinearly nursed one's health in the range section corresponding to sensor
Amplification, beyond the range section of the sensor when output for a fixed amplitude voltage signal circuit；It is suitable to adjust amplification amplitude limiter circuit
The voltage of 2-1~2-n outputsu 1~u nAdder circuit 3 is sent into, and suitable adjust amplifies amplitude limiter circuit institute output voltageu 1~u n's
Maximum sum should not exceed the maximum input level required by the adder circuit 3；Described adder circuit 3 puts suitable tune
The output of big amplitude limiter circuitu 1~u nOutput is signal all the way after additionyTo data acquisition storage circuit 4.
Embodiment 1：Range is the 100MPa adaptive shock wave pressure measurement apparatus of sensitivity
As shown in figure 3, range disclosed by the invention is the 100MPa adaptive shock wave pressure measurement apparatus of sensitivity, including survey
Amount device case and 3 pressure sensors being packaged in housing, 3 suitable adjust amplify amplitude limiter circuit, adder circuit sum
According to store circuit.
3 pressure sensors are the shock wave pressure sensor that range is respectively 1MPa, 10MPa and 100MPa, and 3 sense
Device is installed on the same end face of a cylindrical housings, experiences same shock wave pressurep。
3 suitable tune amplification amplitude limiter circuits are respectively the defeated of 1MPa, 10MPa and 100MPa 3 pressure sensors to range
Go out signalv 1、v 2、v 3Carry out nursing one's health amplification and amplitude limit, wherein amplifying amplitude limiter circuit corresponding to the suitable tune of 1MPa pressure sensors
Characteristic corresponding to the suitable tune of 10MPa pressure sensors as shown in figure 4, amplify the characteristic of amplitude limiter circuit as shown in figure 5, corresponding to
The characteristic of the suitable tune amplification amplitude limiter circuit of 100MPa pressure sensors is as shown in Figure 6.
Adder circuit is by the above-mentioned 3 suitable output signals for adjusting amplification amplitude limiter circuitu 1、u 2、u 3Exported after addition；Addition
The output of device circuity（Magnitude of voltage, unit areV）With the pressure of measurement apparatus impressionp（Unit isMPa）Between relation（Survey
Measure the input-output characteristic of device）As shown in Figure 7；So sensitivity self-adapting measuring apparatus exists（0~1）Spirit in the range of MPa
Sensitivity is 3.33V/MPa,（1~10）Sensitivity in the range of MPa is 0.33V/MPa,（10~100）In the range of MPa
Sensitivity be 0.03V/MPa, the sensitivity realized in different range abilities is adaptive, ensures in each range section all
Can effectively and accurate measurement signal.
Data acquisition storage circuit is to store tester using the modular small of STORAGE MEASUREMENT TECHNIQUE, and it can put with suitable tune
Big amplitude limiter circuit, adder circuit are packaged in circular cylindrical shell body together.
Specific embodiment 2
Range is 10000g sensitivity self adaptable acceleration measurement apparatus
As shown in figure 8, range disclosed by the invention is 10000g sensitivity self adaptable acceleration measurement apparatus, including measurement dress
4 acceleration transducers, the 4 suitable tune put housing and be packaged in housing amplify amplitude limiter circuit, adder circuit and data
Store circuit.
4 acceleration transducers are the acceleration transducer that range is respectively 100g, 1000g, 5000g and 10000g, 4
Sensor is installed in a circular cylindrical shell body, experiences impact accelerationa。
4 suitable four acceleration biographies for adjusting amplification amplitude limiter circuit respectively to range for 100g, 1000g, 5000g and 10000g
The output signal of sensorv 1、v 2、v 3、v 4Carry out nursing one's health amplification and amplitude limit, wherein putting corresponding to the suitable tune of 100g acceleration transducers
The characteristic of big amplitude limiter circuit corresponding to the suitable tune of 1000g acceleration transducers as shown in figure 9, amplify the characteristic of amplitude limiter circuit as schemed
It is as shown in figure 11 corresponding to the characteristic of the suitable tune amplification amplitude limiter circuit of 5000g acceleration transducers shown in 10, corresponding to 10000g
The characteristic of the suitable tune amplification amplitude limiter circuit of acceleration transducer is as shown in figure 12.
Adder circuit is by the above-mentioned 4 suitable output signals for adjusting amplification amplitude limiter circuitu 1、u 2、u 3、 u 4Exported after addition.Add
The output of adder circuity（Magnitude of voltage, unit areV）With the acceleration of measurement apparatus impressiona（Unit isg）Between relation（I.e.
The input-output characteristic of measurement apparatus）As shown in figure 13；So sensitivity self-adapting measuring apparatus exists（0~100）In g range
Sensitivity is 0.002825V/g,（100~1000）Sensitivity in g range is 0.00325V/g,（1000~5000）
Sensitivity in g range is 0.00075V/g,（5000~10000）Sensitivity in g range is 0.00025V/g, realize
Sensitivity in different range abilities is adaptive, and ensureing can effectively and accurate measurement signal in each range section.
Data acquisition storage circuit is to store tester using the modular small of STORAGE MEASUREMENT TECHNIQUE, and it can put with suitable tune
Big amplitude limiter circuit, adder circuit are packaged in circular cylindrical shell body together.
Claims (7)
1. a kind of wide-range sensitivity self-adapting measuring method, the measuring method comprise the following steps that：
S1：By a wide range ability by from being as low as divided into multiple range sections greatly；
S2：The sensor of corresponding appropriate sensitivity is respectively configured in each range section；
S3：Amplification amplitude limiter circuit is prepared for the sensor of each range section；
S4：Each suitable output signal for adjusting amplification amplitude limiter circuit is uniformly input to adder circuit；
S5：The output signal of adder is converted to data signal storage after being gathered by data acquisition circuit.
A kind of 2. wide-range sensitivity self-adapting measuring method according to claim 1, it is characterised in that：The step S1
In range section be 3~5.
A kind of 3. wide-range sensitivity self-adapting measuring method according to claim 1, it is characterised in that：The step S2
In sensor for the damage effect dynamic parameter such as measurement pressure, acceleration, deformation or temperature sensor.
A kind of 4. wide-range sensitivity self-adapting measuring method according to claim 1, it is characterised in that：The step S3
In suitable tune amplification amplitude limiter circuit be relevant with the type of the sensor that is adapted to, sensitivity, frequency response range etc. and by the amount
Nurse one's health to the output signal linearity of journey section inner sensor amplification, beyond the range section of the sensor when output for a fixed amplitude
The circuit of voltage signal.
A kind of 5. wide-range sensitivity self-adapting measuring method according to claim 1, it is characterised in that：The step S4
In adder circuit be and suitable the having using integrated computation circuit design for adjusting amplification amplitude limiter circuit frequency range adaptable
The circuit of addition function.
A kind of 6. wide-range sensitivity self-adapting measuring method according to claim 1, it is characterised in that：The step S5
In data acquisition storage circuit can be modular small storage tester or commodity using STORAGE MEASUREMENT TECHNIQUE
The dynamic data acquiring instrument of change.
A kind of 7. wide-range sensitivity self-adapting measuring apparatus, it is characterised in that：Described measurement apparatus includes sensor, suitable tune
Amplify amplitude limiter circuit, adder circuit and data store circuit；Described sensor is to be installed on the same one end of same housing
Multiple sensors of the different sensitivity of the same physical parameter of measurement on face；Corresponding each described sensor is provided with suitable
Adjust amplification amplitude limiter circuit；Sensor is experienced the output after being tested parameter in corresponding sensing by described suitable tune amplification amplitude limiter circuit
Linearly conditioning amplification in the range section of device, during beyond the range section of the sensor output for a fixed amplitude voltage signal；
Multiple suitable voltages for adjusting amplification amplitude limiter circuit to be exported are sent into adder circuit, and multiple suitable tune amplification amplitude limiter circuits are exported
Voltage max sum should not exceed maximum input level required by described adder circuit；Described adder circuit will
It is described it is all it is suitable adjust amplification amplitude limiter circuits export export after addition be all the way signal to described data acquisition storage circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185690.2A CN107727154A (en) | 2017-11-23 | 2017-11-23 | A kind of wide-range sensitivity self-adapting measuring method and measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711185690.2A CN107727154A (en) | 2017-11-23 | 2017-11-23 | A kind of wide-range sensitivity self-adapting measuring method and measurement apparatus |
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| CN201711185690.2A Pending CN107727154A (en) | 2017-11-23 | 2017-11-23 | A kind of wide-range sensitivity self-adapting measuring method and measurement apparatus |
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Citations (8)
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|---|---|---|---|---|
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| CN1086012A (en) * | 1992-10-01 | 1994-04-27 | 莫托罗拉公司 | Pulsed pressure sensor circuit and using method thereof |
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| CN103364614A (en) * | 2013-07-14 | 2013-10-23 | 中国科学院近代物理研究所 | Self-adaptive wide-range current and voltage conversion device |
| CN103645344A (en) * | 2013-12-11 | 2014-03-19 | 江苏物联网研究发展中心 | Multi-measuring range MEMS CMOS interdigital capacitance accelerometer |
| CN103837300A (en) * | 2014-03-19 | 2014-06-04 | 成都千嘉科技有限公司 | Pressure sensor calibration method with temperature compensation function |
| CN207688921U (en) * | 2017-11-23 | 2018-08-03 | 中国人民解放军61489部队 | A kind of wide-range sensitivity self-adapting measuring apparatus |
-
2017
- 2017-11-23 CN CN201711185690.2A patent/CN107727154A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509050A (en) * | 1982-08-30 | 1985-04-02 | United Technologies Corporation | Automatic adaptive sensitivity time control for a ground mapping radar |
| CN1032706A (en) * | 1988-01-24 | 1989-05-03 | 付杰民 | The induction type current table that has gauge head |
| CN1086012A (en) * | 1992-10-01 | 1994-04-27 | 莫托罗拉公司 | Pulsed pressure sensor circuit and using method thereof |
| CN2719869Y (en) * | 2004-08-20 | 2005-08-24 | 贵阳铝镁设计研究院 | Aluminium electrolytic tank control machine dual-range measuring-sample device |
| CN103364614A (en) * | 2013-07-14 | 2013-10-23 | 中国科学院近代物理研究所 | Self-adaptive wide-range current and voltage conversion device |
| CN103645344A (en) * | 2013-12-11 | 2014-03-19 | 江苏物联网研究发展中心 | Multi-measuring range MEMS CMOS interdigital capacitance accelerometer |
| CN103837300A (en) * | 2014-03-19 | 2014-06-04 | 成都千嘉科技有限公司 | Pressure sensor calibration method with temperature compensation function |
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| Title |
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