CN206756751U - A kind of geomaterial acoustical attenuation measurement device based on flexure element - Google Patents
A kind of geomaterial acoustical attenuation measurement device based on flexure element Download PDFInfo
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- CN206756751U CN206756751U CN201720277694.2U CN201720277694U CN206756751U CN 206756751 U CN206756751 U CN 206756751U CN 201720277694 U CN201720277694 U CN 201720277694U CN 206756751 U CN206756751 U CN 206756751U
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Abstract
It the utility model is related to a kind of geomaterial acoustical attenuation measurement device based on flexure element, including programmable logic controller (PLC), signal generator, power amplifier, the first circuit converter, excite flexure element, first receive flexure element, second receive flexure element, second circuit converter and charge amplifier；Programmable logic controller (PLC) passes sequentially through signal generator, power amplifier and the first circuit converter with exciting flexure element to be connected；First receives flexure element and the second reception flexure element respectively by second circuit converter and charge amplifier access programmable logic controller (PLC)；Excite flexure element, the first reception flexure element and the second reception flexure element axially then being set gradually from preceding along sample to be tested.The utility model measures while providing a kind of achievable velocity of wave and acoustic attenuation, so as to more accurately determine the geomaterial acoustical attenuation measurement device based on flexure element of the physico-mechanical properties of geomaterial.
Description
Technical field
It the utility model is related to a kind of Geotechnical Engineering tester for testing, more particularly to a kind of ground work based on flexure element
Journey material acoustical attenuation measurement device.
Background technology
Acoustic attenuation is the important parameter of geomaterial physics research, and accurate measurement geomaterial acoustic attenuation is
Evaluate the important content of geomaterial.It is many to measure instrument and the device of acoustic attenuation, respectively there is its applicable elements.Existing sound is visited
Survey flexure element mainly using piezoelectric ceramic wafer be used as sensor, according to connect circuit difference can excite P ripples and S ripples, but
Reception signal.But one of the device of flexure element as geomaterial acoustic detection, but there is what acoustic attenuation was difficult to measure to ask
Topic.Although flexure element has its unique superiority in terms of the geomaterial velocity of sound is measured, single to be not enough to from velocity of sound parameter
The physico mechanical characteristic of geomaterial is reacted, therefore, it is necessary to be measured to its acoustic attenuation simultaneously, preferably studies rock
The physico mechanical characteristic of native engineering material.
Utility model content
The purpose of this utility model is to overcome existing bending element apparatus to meet the needs for measuring acoustic attenuation, Jin Erti
Supply to measure while a kind of achievable velocity of wave and acoustic attenuation, so as to more accurately determine the physical mechanics property of geomaterial
The geomaterial acoustical attenuation measurement device based on flexure element of matter.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of geomaterial acoustical attenuation measurement device based on flexure element, it is characterised in that：It is described to be based on flexure element
Geomaterial acoustical attenuation measurement device include programmable logic controller (PLC), signal generator, power amplifier, first electricity
Road converter, flexure element, first is excited to receive flexure element, the second reception flexure element, second circuit converter and electric charge amplification
Device；The programmable logic controller (PLC) passes sequentially through signal generator, power amplifier and the first circuit converter with exciting
Flexure element is connected；The first reception flexure element and the second reception flexure element pass through second circuit converter and electric charge respectively
Amplifier accesses programmable logic controller (PLC)；It is described to excite flexure element, first to receive flexure element and the second reception flexure element edge
Sample to be tested is axially then set gradually from preceding.
Preferably, flexure element is excited to excite P ripples and reception signal used by the utility model.
Preferably, the structure of the first reception flexure element and the second reception flexure element has been used by the utility model
Exactly the same, excite S ripples and reception signal.
The utility model has advantages below compared with prior art：
The utility model, which provides a kind of geomaterial acoustical attenuation measurement device based on flexure element, to be included may be programmed
Logic controller, signal generator, power amplifier, the first circuit converter, flexure element, first is excited to receive flexure element, the
Two receive flexure element, second circuit converter and charge amplifier；Programmable logic controller (PLC) pass sequentially through signal generator,
Power amplifier and the first circuit converter are with exciting flexure element to be connected；First receives flexure element and the second reception flexure element
Programmable logic controller (PLC) is accessed by second circuit converter and charge amplifier respectively；Flexure element, first is excited to receive
Flexure element and the second reception flexure element axially then being set gradually from preceding along sample to be tested.The utility model is programmable to patrol
Controller control signal generator and power converter are collected, by the first circuit converter, makes to excite flexure element excitation signal, the
One reception flexure element is firstly received the signal transmitted by sample, and then the second reception flexure element is connected to signal, by the
Two circuit converters are changed, and are handled, are shown in above calculator via charge amplifier, according to the sound above obtained in two distances
Signal, amplitude data is extracted, acoustic attenuation is directly calculated, by this device, is measured while realizing velocity of wave and acoustic attenuation, from
And the physico-mechanical properties of geomaterial is more accurately determined, expand the function of flexure element.The utility model can be real
Measure while having showed velocity of wave and acoustic attenuation, so as to more accurately determine the physico-mechanical properties of geomaterial, expand
The function of flexure element；Meanwhile device can also test the decay of S ripples.The principle of device is clear and definite, and testing efficiency is high, easy to operate
The advantages that.
Brief description of the drawings
Fig. 1 is that the circuit of the geomaterial acoustical attenuation measurement device provided by the utility model based on flexure element is former
Reason figure；
In figure：
1- programmable logic controller (PLC)s；2- signal generators；3- power amplifiers；The circuit converters of 4- first；5- is excited
Flexure element；6- samples；7- first receives flexure element；8- second receives flexure element；9- second circuit converters；10- electric charges amplify
Device.
Embodiment
Embodiment of the present utility model is elaborated below, the present embodiment using technical solutions of the utility model before
Put and implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
Referring to Fig. 1, the utility model provides a kind of geomaterial acoustical attenuation measurement device based on flexure element, should
Geomaterial acoustical attenuation measurement device based on flexure element includes programmable logic controller (PLC) 1, signal generator 2, power
Amplifier 3, the first circuit converter 4, flexure element 5, first is excited to receive the reception of flexure element 7, second flexure element 8, second circuit
Converter 9 and charge amplifier 10；Programmable logic controller (PLC) 1 pass sequentially through signal generator 2, power amplifier 3 and
First circuit converter 4 is with exciting flexure element 5 to be connected；First, which receives flexure element 7 and second, receives flexure element 8 respectively by the
Two circuit converters 9 and charge amplifier 10 access programmable logic controller (PLC) 1；Flexure element 5, first is excited to receive flexure element
7 and second reception flexure element 8 axially then being set gradually from preceding along sample 6 to be tested.It is to excite to excite flexure element 5
P ripples and can reception signal flexure element.
Wherein, the structure that the first reception flexure element 7 and second receives flexure element 8 is identical, and the first reception is curved
The bent reception flexure element 8 of member 7 and second be can excite S ripples and can reception signal flexure element.
The course of work of the present utility model is：The control signal generator 2 of programmable logic controller (PLC) 1 and power converter 3,
By the first circuit converter 4, make to excite the excitation signal of flexure element 5, the first reception flexure element 7 is firstly received by sample 6
And then the signal transmitted, the second reception flexure element 8 are connected to signal, are changed by second circuit converter 9, amplified via electric charge
Device 10 is handled, and is shown in above calculator 1.According in two distances, (first, which receives flexure element 7 and second, receives flexure element 8
The distance between determined according to soil sample size and frequency size) on obtained acoustical signal, extract amplitude data, directly calculating sound
Decay, or spectrum analysis is carried out, calculate acoustic attenuation.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
- A kind of 1. geomaterial acoustical attenuation measurement device based on flexure element, it is characterised in that：It is described based on flexure element Geomaterial acoustical attenuation measurement device includes programmable logic controller (PLC)（1）, signal generator（2）, power amplifier （3）, the first circuit converter（4）, excite flexure element（5）, first receive flexure element（7）, second receive flexure element（8）, second Circuit converter（9）And charge amplifier（10）；The programmable logic controller (PLC)（1）Pass sequentially through signal generator（2）、 Power amplifier（3）And first circuit converter（4）With exciting flexure element（5）It is connected；Described first receives flexure element（7）With And second receive flexure element（8）Pass through second circuit converter respectively（9）And charge amplifier（10）Access FPGA Controller（1）；It is described to excite flexure element（5）, first receive flexure element（7）And second receive flexure element（8）Had a try along to be measured Sample（6）Axially then set gradually from preceding.
- 2. the geomaterial acoustical attenuation measurement device according to claim 1 based on flexure element, it is characterised in that：Institute State the first reception flexure element（7）And second receive flexure element（8）Structure be identical.
- 3. the geomaterial acoustical attenuation measurement device according to claim 1 or 2 based on flexure element, its feature exist In：It is described to excite flexure element（5）Be can excite P ripples and can reception signal flexure element.
- 4. the geomaterial acoustical attenuation measurement device according to claim 3 based on flexure element, it is characterised in that：Institute State the first reception flexure element（7）And second receive flexure element（8）Be can excite S ripples and can reception signal bending Member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277694.2U CN206756751U (en) | 2017-03-21 | 2017-03-21 | A kind of geomaterial acoustical attenuation measurement device based on flexure element |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720277694.2U CN206756751U (en) | 2017-03-21 | 2017-03-21 | A kind of geomaterial acoustical attenuation measurement device based on flexure element |
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| CN206756751U true CN206756751U (en) | 2017-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813807A (en) * | 2018-12-19 | 2019-05-28 | 国网江苏省电力有限公司经济技术研究院 | A kind of device of handheld piezoelectric element test rock-soil material viscoelastic parameters |
-
2017
- 2017-03-21 CN CN201720277694.2U patent/CN206756751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813807A (en) * | 2018-12-19 | 2019-05-28 | 国网江苏省电力有限公司经济技术研究院 | A kind of device of handheld piezoelectric element test rock-soil material viscoelastic parameters |
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