CN206020539U - Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement equipment - Google Patents
Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement equipment Download PDFInfo
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- CN206020539U CN206020539U CN201620784227.4U CN201620784227U CN206020539U CN 206020539 U CN206020539 U CN 206020539U CN 201620784227 U CN201620784227 U CN 201620784227U CN 206020539 U CN206020539 U CN 206020539U
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- concrete
- dielectric constant
- outer conductor
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- reinforced concrete
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Abstract
A kind of coaxially one-dimensional reinforced concrete member concrete dielectric constant measurement equipment.Concrete dielectric constant measurement equipment is completed to measure jointly with the inner and outer conductor of tested coaxially one-dimensional reinforced concrete member.Coaxially the reinforcing bar in one-dimensional reinforced concrete member is coaxial cable structure, constitutes inner and outer conductor by some vertical muscle and stirrup.Concrete dielectric constant measurement equipment is constituted by server, microprocessor, signal source, power splitter, signal amplifier, measurement connectivity port and directional coupler, reflected signal process circuit, frequency mixer, mixed frequency signal process circuit, analog to digital conversion circuit, programmable attenuator is controlled, and microprocessor connects control server in succession by communication.This is new on the basis of concrete material and method for designing is not changed so that concrete material itself becomes a kind of sensing material, according to the concrete dielectric constant real-time monitoring concrete component health status of measurement.Dielectric constant measurement device structure is simple, reliable, applied widely.
Description
(1) technical field
This utility model belongs to construction material detection category, is related to concrete quality monitoring, specifically coaxial one-dimensional reinforcing bar
Concrete component concrete dielectric constant measurement equipment.
(2) background technology
Concrete is most commonly used structural material used in civil engineering structure, and the damage of concrete structure material can be tight
The globality of destruction structure, the durability of impact structure, the safety for even directly endangering engineering structure again, therefore, concrete
Material damage detection or monitoring are the important contents of construction quality inspection and monitoring structural health conditions.Concrete component is carried out in real time
Effective detection and real-time monitoring, scientifically grasp the dynamic change of concrete component structural behaviour, to taking diaster prevention and control in time
Measure, the efficiency of operation for improving structure, the sustainable Green Development for realizing xoncrete structure Life cycle, guarantee people's life
Property safety has extremely important meaning.
Under the situation that today's society is developed rapidly, the quality testing of various concrete has different degrees of raising.Specially
Profit ZL201520402418.5《The one-dimensional concrete health monitoring step test of reinforcing bar coaxial cable structure》, it is a kind of right to give
The health monitor method of the one-dimensional concrete of reinforcing bar coaxial cable structure, but though measuring accuracy or reliability, stability also
Have much room for improvement.
Patent No. ZL201310029782.7《Concrete monitor and detection instrument and its monitor and detection side with reinforcing bar as electrode
Method》Electrode is done using reinforcing bar, the electrical quantity between two reinforcing bar electrodes is detected, is judged distress in concrete.This law is bright to propose one
The method of kind, but the different structure not according to armored concrete provides different method of testings.
Patent No. ZL201210199249.0《Concrete crack detector with reinforcing bar as electrode》, swashed using emission electrode
The relation between signal and the response signal of receiving electrode is encouraged, distress in concrete is judged.Primary limitation of the present invention is in detection coagulation
The crack of soil, does not detect other Deviant Behavioies, there is limitation.
(3) utility model content
The purpose of this utility model is to provide one kind and varies without concrete material and method for designing, by concrete component certainly
Body becomes a kind of sensing material, presents differing dielectric constant according to concrete material under different larval instar, different health status,
The dielectric constant of concrete component is detected using the method reflected based on frequency domain, monitor the healthy shape in concrete each stage
Condition.
The purpose of this utility model is achieved in that：Concrete dielectric constant measurement equipment and tested coaxially one-dimensional reinforcing bar
The inner and outer conductor of concrete component completes to measure jointly.Coaxially the reinforcing bar in one-dimensional reinforced concrete member is tied for coaxial cable
Structure, is had outer conductor and inner wire, outer conductor to be combined by some stirrups, vertical muscle with inner wire, indulges muscle along coaxially one-dimensional steel
Reinforced concrete component is axially distributed, and stirrup is distributed along cross-sectional direction, and inner wire is located at the center inside reinforced concrete member
Position is consistent with outer conductor shape but dimension of hoop reinforcement is less than outer conductor, and outer conductor is located at the outside of concrete component, and meets one
The requirement of dimension concrete component design specification.
Concrete dielectric constant measurement equipment by control server, microprocessor, signal source, power splitter, signal amplifier,
Measurement connectivity port and directional coupler, reflected signal process circuit, frequency mixer, mixed frequency signal process circuit, analog digital conversion electricity
Road and programmable attenuator composition.Microprocessor is by communication interface connection control server.
Concrete dielectric constant measurement equipment is connected in connection cable, the survey of tested coaxially one-dimensional reinforced concrete member
The inner and outer conductor at amount end is connected with connection cable, outside the outer conductor of tested coaxially one-dimensional reinforced concrete member and connection cable
Conductor connects, and the inner wire of tested coaxially one-dimensional reinforced concrete member is connected with connection cable inner wire.
Microprocessor connecting signal source, programmable attenuator and analog to digital conversion circuit, the signal input power splitter of signal source, work(
Divide device that signal source signal is divided into two-way, be sent to frequency mixer all the way, send into signal amplifier group all the way and programmable attenuator group connects
The circuit for connecing；The output signal of the circuit of signal amplifier group and the connection of programmable attenuator group is connected to directional coupler, orients
Input signal is given measurement connectivity port by bonder, and receives reflected signal from measurement connectivity port, by the measurement for receiving
The reflected signal of connectivity port gives reflected signal filtering and amplifying circuit, the output signal connection of reflected signal filtering and amplifying circuit
Arrive frequency mixer；The output signal of frequency mixer sends into mixed frequency signal process circuit, and the output of mixed frequency signal process circuit is sent into modulus and turned
Circuit is changed, microprocessor is given in the output of analog to digital conversion circuit.
The vertical muscle quantity of the inner and outer conductor of tested coaxially one-dimensional reinforced concrete member is not less than 6.
Coaxially one-dimensional reinforced concrete member cross section is circular or oval or square or rectangular.
Good effect of the present utility model is：
1st, coaxially one-dimensional reinforced concrete member on the basis of concrete material and method for designing is varied without so that mixed
Solidifying soil material itself becomes a kind of sensing material.
2nd, concrete material presents different concrete dielectric constants under different larval instar, different health status, and measurement is mixed
The change of solidifying soil dielectric constant, such that it is able to monitor the health status in concrete each stage.
3rd, the dynamic change of concrete component structural behaviour, solution, to concrete health status monitor in real time, are scientifically grasped
Certainly the certainty of measurement and stability, reliability of existing concrete detection need the problem for being improved, and meets the coagulation for increasingly increasing
The demand of native component dynamic detection, realizes the early warning to improper health status.
4th, concrete dielectric constant measurement device structure is simple, easy to use and reliable, applied widely, it is easy to promote.
(4) illustrate
Fig. 1 is the one-dimensional reinforced concrete member structural representation of circular coaxial in this utility model.
Fig. 2 is the coaxially one-dimensional reinforced concrete member structural representation of square in this utility model.
Connection when Fig. 3 is coaxially one-dimensional reinforced concrete member tested using concrete dielectric constant measurement device measuring
Figure.
Fig. 4 is concrete dielectric constant measurement equipment structure chart.
Fig. 5 is signal source circuit figure.
Fig. 6 is signal amplifier circuit figure.
Fig. 7 is programmable attenuator circuit diagram.
Fig. 8 is reflected signal process circuit
Fig. 9 is mixer figure.
Figure 10 is analog to digital conversion circuit figure.
1 be cross section for the one-dimensional reinforced concrete member inner wire of circular coaxial, 1 ' is that cross section is square coaxial
Dimension reinforced concrete member inner wire, it is the one-dimensional reinforced concrete member outer conductor hoop of circular coaxial that 2-1～2-n is cross section
Muscle, 3-1～3-m be for cross section be the vertical muscle of the one-dimensional reinforced concrete member outer conductor of circular coaxial, 3 ' -1～3 '-m be for horizontal stroke
Section is that cross section is square coaxial for the vertical muscle of the coaxially one-dimensional reinforced concrete member outer conductor of square, 4 ' -1～4 '-n
Dimension reinforced concrete member outer conductor stirrup, 5 concrete dielectric constant measurement equipment, 6 connection cables, 7 tested coaxially one-dimensional steel
Survey in reinforced concrete component, 9 communication interfaces, 10 microprocessors, 11 signal sources, 12 power splitters, 13-1～13-3 signal amplifiers, 14
Amount connectivity port, 15 directional couplers, 16 reflected signal process circuits, 17 frequency mixers, 18 mixed frequency signal process circuits, 19 moduluses
Change-over circuit, 20 control servers, 21-1～21-2 programmable attenuators.
(5) specific embodiment
Concrete dielectric constant measurement equipment 5 is jointly complete with the inner and outer conductor of tested coaxially one-dimensional reinforced concrete member 7
Into measurement.
Referring to accompanying drawing 4.
Concrete dielectric constant measurement equipment by control server 20, microprocessor 10, signal source 11, power splitter 12, letter
Number amplifier 13-1～13-3, measurement connectivity port 14 and directional coupler 15, reflected signal process circuit 16, frequency mixer 17,
Mixed frequency signal process circuit 18, analog to digital conversion circuit 19, programmable attenuator 21-1～21-2 compositions, microprocessor 10 is by communication
The connection control server 20 of interface 9, control server 20 are communicated with microprocessor 10 by communication interface 9.
Concrete dielectric constant measurement equipment 5 is connected in connection cable 6, tested coaxially one-dimensional reinforced concrete member
The inner and outer conductor of measurement end is connected with connection cable 6, the outer conductor of tested coaxially one-dimensional reinforced concrete member and connection cable
Outer conductor connects, and the inner wire of tested coaxially one-dimensional reinforced concrete member is connected with connection cable inner wire；
Microprocessor connecting signal source 11, programmable attenuator 21-1,21-2 and analog to digital conversion circuit 19, the signal of signal source
Signal source signal is divided into two-way, is sent to frequency mixer 17 all the way by input power splitter 12, power splitter, sends into signal amplifier group all the way
13-1～13-3 and the circuit of programmable attenuator group 21-1～21-2 connections.Signal amplifier group 13-1～13-3 and program control decay
The circuit output signal of device group 21-1～21-2 connections is connected to directional coupler 15, and input signal is given survey by directional coupler
Amount connectivity port, and reflected signal is received from measurement connectivity port, the reflected signal of the measurement connectivity port for receiving is given
Reflected signal process circuit 16, the output signal of reflected signal process circuit are connected to frequency mixer 17；The output signal of frequency mixer
Mixed frequency signal process circuit 18 is sent into, analog to digital conversion circuit 19 is sent in the output of mixed frequency signal process circuit, analog to digital conversion circuit
Microprocessor is given in output.
ZC706 development board of the microprocessor using the production of XILINX companies of the U.S..Serial interface of the communication interface using ZC706
Mouthful.Circuit diagram that server is common desk computer or notebook computer signal source is controlled referring to accompanying drawing 5.
Wherein US1 be ADF4350, ANALOG DEVICES companies of the U.S. produce.US2 is 26MHZ active crystal agitators,
US3 is ADF4153, and ANALOG DEVICES companies of the U.S. produce.
CLKA, DATAA, LEA, CLKB, DATAB, LEB, MUXS, MUXO, LD are connected to the I/O pin of ZC706.RFOUTA
It is connected to the input of power splitter.
Signal amplifier circuit figure is referring to accompanying drawing 6.
Wherein UA10 integrated circuits are model NBB-40, and by U.S. RF Micro Devices, Inc. companies produce.
Power splitter using Shenzhen hundred receive (Shenzhen) company limited production, model ZN2PD2-63-S+MINI 0.35-
6.0.Power splitter input is connected to signal source RFOUTA, and output is connected respectively to the RF_INA of frequency mixer and signal amplifier group
The input of the first order.
Programmable attenuator is referring to Fig. 7.
In figure, UA2 integrated circuits are model PE43704, by Peregrine Semiconductor Corp companies of the U.S.
Production.A0, A1, A2, D0, D1, D2, D3, D4, D5, D6, SI, CLK, LE, P/S are connected to the I/O pin of ZC706.
Reverse signal process circuit is referring to accompanying drawing 8.
Wherein, ULP1 is ADL5523, and ANALOG DEVICES companies of the U.S. produce.RX_IN:It is connected to directional coupler
Reflected signal；RX_OUT is connected to frequency mixer VOUTA.
Mixer signal process circuit is identical with reflected signal filtering and amplifying circuit.Wherein, RX_IN:It is connected to frequency mixer
S_OUT, RX_OUT are connected to analog to digital conversion circuit input.
Directional coupler is employed and is produced by ShangHai HuaXiang Computer Communication Engineering Co., Ltd, model SHX310-
003060.
The circuit of frequency mixer is referring to accompanying drawing 9.
Wherein.UH1 is that ADL5350 is produced by ANALOG DEVICES companies of the U.S..
S_OUT is connected to the input of mixed frequency signal process circuit.
Analog to digital conversion circuit is referring to accompanying drawing 10.
Wherein, U5 is AD9643, is produced by ANALOG DEVICES companies of the U.S..
VINA+ is connected to mixed frequency signal process circuit RX_OUT,
SCLK, SDO, CLK+, CLK-, D0+, D1+ ..., D13+, D0-, D1- ..., D13- is all connected to ZC706
I/O interface.
During measurement, the inner and outer conductor of the measurement end of tested coaxially one-dimensional reinforced concrete member is connected with connection cable 6,
The outer conductor of tested coaxially one-dimensional reinforced concrete member is connected with connection cable outer conductor, tested coaxially one-dimensional armored concrete
The inner wire of component is connected with connection cable inner wire；The measurement connectivity port 14 of concrete dielectric constant measurement equipment be connected
Cable 6 connects.
This utility model is on the basis of concrete material and method for designing is varied without so that concrete material itself into
For a kind of sensing material.Rebar design in these concrete is designed to outer conductor and inner wire into coaxial cable form
Form.Outer conductor is combined by some stirrups, vertical muscle with inner wire.Vertical muscle is along coaxially one-dimensional reinforced concrete member axial direction
Distribution, stirrup are distributed along cross-sectional direction, and inner wire is located at the center inside reinforced concrete member and outer conductor shape
Consistent but dimension of hoop reinforcement is less than outer conductor, and outer conductor is located at the outside of concrete component, and meets one-dimensional concrete design specification
Design requirement.
Coaxially one-dimensional reinforced concrete member can be that cross section is respectively circular, oval, square, rectangular same
The one-dimensional reinforced concrete member of axle.The one-dimensional reinforced concrete member of circular coaxial, ellipse are named as according to its cross section
The coaxial coaxial one-dimensional armored concrete of one-dimensional reinforced concrete member, the coaxially one-dimensional reinforced concrete member of square, rectangle
Component.No matter the outer conductor design of which kind of coaxial one-dimensional reinforced concrete member follows Code for design of concrete structures requirement,
When can ensure that the minimum 6 vertical muscle of outer conductor, design according to normal the Concrete Structure Design standard.If pressing normal coagulation
The vertical muscle of soil structure design standard Design Treatment is less than 6, then design 6 vertical muscle.Inner conductor structure is similar with outer conductor, but transversal
Face is less than outer conductor cross section.The bar diameter that the vertical muscle of inner wire is adopted can less than the bar diameter that the vertical muscle of outer conductor is adopted or
Person is identical, and inner wire longitudinal bar spacing can be identical with outer conductor, or less than outer conductor spacing, but inner wire is minimum to ensure 6
Vertical muscle.
Embodiment 1.Referring to accompanying drawing 1,3.
The outer conductor of the one-dimensional reinforced concrete member of circular coaxial is combined by circular stirrups 2-1～2-n, vertical muscle 3-1～3-m
Form.Inner wire 1 is that the circular, hoop flaccidity of tendon and muscle muscle similar to outer conductor structure is combined, but circular stirrups diameter is justified than outer conductor
U stirrup is little, and inner wire is located at the shaft core position inside reinforced concrete member.
Oval coaxially one-dimensional reinforced concrete member is similar with the one-dimensional reinforced concrete member of circular coaxial, simply stirrup
For ellipse.
The connection cable of the coaxial inner and outer conductor connection of one-dimensional reinforced concrete member of tested circular or ellipse adopts 50
Ohm coaxial cable.
Embodiment 2.Referring to accompanying drawing 2,3.
One-dimensional reinforced concrete member 7 is the coaxially one-dimensional reinforced concrete member of square.
The connection cable of the inner and outer conductor connection of the coaxially one-dimensional reinforced concrete member of tested square using 75 ohm with
Shaft cable.
For the coaxial one-dimensional reinforced concrete member of rectangle, the connection cable of its inner and outer conductor connection adopts 75 ohm
Coaxial cable.
As concrete material presents differing dielectric constant under different larval instar, different health status, concrete is measured
The change of dielectric constant, so that it may monitor the health status in concrete each stage.
Claims (5)
1. a kind of coaxially one-dimensional reinforced concrete member concrete dielectric constant measurement equipment, it is characterised in that：Concrete dielectric
Constant measuring apparatus (5) are completed to measure jointly with the inner and outer conductor of tested coaxially one-dimensional reinforced concrete member (7)；Coaxial one
Reinforcing bar in dimension reinforced concrete member is coaxial cable structure, has outer conductor and inner wire, if outer conductor and inner wire by
Dry stirrup, vertical muscle are combined, and are indulged muscle and are axially distributed along coaxially one-dimensional reinforced concrete member, and stirrup is along cross-sectional direction point
Cloth, inner wire is consistent with outer conductor shape positioned at the center inside reinforced concrete member but dimension of hoop reinforcement is less than and leads outward
Body, outer conductor are located at the outside of concrete component, and meet the requirement of one-dimensional concrete component design specification；
Concrete dielectric constant measurement equipment (5) is by control server (20), microprocessor (10), signal source (11), power splitter
(12), signal amplifier (13-1～13-3), measurement connectivity port (14) and directional coupler (15), reflected signal process circuit
(16), frequency mixer (17), mixed frequency signal process circuit (18), analog to digital conversion circuit (19), programmable attenuator (21-1～21-2)
Composition, microprocessor (10) is by communication interface (9) connection control server (20)；
Concrete dielectric constant measurement equipment (5) is connected in connection cable (6), tested coaxially one-dimensional reinforced concrete member
The inner and outer conductor of measurement end is connected with connection cable (6), the outer conductor of tested coaxially one-dimensional reinforced concrete member be connected electricity
Cable outer conductor connects, and the inner wire of tested coaxially one-dimensional reinforced concrete member is connected with connection cable inner wire；
Microprocessor connecting signal source (11), programmable attenuator (21-1,21-2) and analog to digital conversion circuit (19), the letter of signal source
Number input power splitter (12), signal source signal is divided into two-way, is sent to frequency mixer (17) all the way by power splitter,
Circuit that signal amplifier group (13-1～13-3) and programmable attenuator group (21-1～21-2) connect is sent into all the way；Signal
The output signal of amplifier group (13-1～13-3) and programmable attenuator group (21-1～21-2) connection circuit is connected to orientation coupling
Input signal is given measurement connectivity port by clutch (15), directional coupler, and receives reflected signal from measurement connectivity port, will
The reflected signal of the measurement connectivity port for receiving gives reflected signal process circuit (16), the output of reflected signal process circuit
It is signally attached to frequency mixer (17)；The output signal of frequency mixer sends into mixed frequency signal process circuit (18), mixed frequency signal process electricity
Analog to digital conversion circuit (19) is sent in road output, and microprocessor is given in the output of analog to digital conversion circuit.
2. concrete dielectric constant measurement equipment as claimed in claim 1, it is characterised in that：Tested coaxially one-dimensional reinforced concrete
The vertical muscle quantity of the inner and outer conductor of native component (7) is not less than 6.
3. concrete dielectric constant measurement equipment as claimed in claim 1, it is characterised in that：Coaxial one-dimensional armored concrete structure
Part cross section is circular or oval or square or rectangular.
4. concrete dielectric constant measurement equipment as claimed in claim 1, it is characterised in that：Mixed with tested coaxially one-dimensional reinforcing bar
The connection cable of the inner and outer conductor connection of solidifying soil component (7) measurement end adopts 50 ohm coaxial cables.
5. concrete dielectric constant measurement equipment as claimed in claim 1, it is characterised in that：Mixed with tested coaxially one-dimensional reinforcing bar
The connection cable of the inner and outer conductor connection of solidifying soil component (7) measurement end adopts 75 ohm coaxial cables.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784227.4U CN206020539U (en) | 2016-07-22 | 2016-07-22 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784227.4U CN206020539U (en) | 2016-07-22 | 2016-07-22 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement equipment |
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| Publication Number | Publication Date |
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| CN206020539U true CN206020539U (en) | 2017-03-15 |
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ID=58245114
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|---|---|---|---|
| CN201620784227.4U Withdrawn - After Issue CN206020539U (en) | 2016-07-22 | 2016-07-22 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974205A (en) * | 2016-07-22 | 2016-09-28 | 四川大学 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measuring device and method |
-
2016
- 2016-07-22 CN CN201620784227.4U patent/CN206020539U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974205A (en) * | 2016-07-22 | 2016-09-28 | 四川大学 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measuring device and method |
| CN105974205B (en) * | 2016-07-22 | 2018-08-14 | 四川大学 | Coaxial one-dimensional reinforced concrete member concrete dielectric constant measurement device and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170315 Effective date of abandoning: 20180814 |
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| AV01 | Patent right actively abandoned |