CN105136859B - Two-dimentional concrete health monitor method based on reinforcing bar electrode - Google Patents
Two-dimentional concrete health monitor method based on reinforcing bar electrode Download PDFInfo
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- CN105136859B CN105136859B CN201510321265.6A CN201510321265A CN105136859B CN 105136859 B CN105136859 B CN 105136859B CN 201510321265 A CN201510321265 A CN 201510321265A CN 105136859 B CN105136859 B CN 105136859B
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Abstract
The invention discloses a kind of two-dimentional concrete health monitor method based on reinforcing bar electrode.The n root reinforcing bar electrodes being parallel to each other linearly laid in same level in two-dimentional concrete are connected to concrete parameters measuring circuit, under micro-processor control, sinusoidal signal generator sends different frequency signals, by concrete voltage amplification and the amplification of resistive voltage, the modulus of impedance of different frequency and the measurement of phase are carried out to each electrode on two-dimentional concrete.By the modulus of impedance and phase value of the normal two-dimentional concrete of same specification measured under different frequency, compared with tested two-dimentional concrete, judge the health status of two-dimentional concrete, find out the particular location of concrete unusual condition.The positive effect of the present invention is：The two-dimentional concrete health status of monitoring in real time, makes quality evaluation, to concrete lesion forecasting and warning in time to building.There is provided a kind of two-dimentional concrete parameters measuring circuit, easy to use and reliable, Detection results are notable.
Description
(1) technical field
The invention belongs to construction material detection, it is related to concrete quality test, is based particularly on the two-dimentional concrete of reinforcing bar electrode
Health monitoring.
(2) background technology
Concrete is widely used in a kind of important engineering material of building construction, science of bridge building, hydraulic engineering etc., coagulation
Native health detection and monitoring instrument are to ensure the technological means that concrete is run safely for a long time.Concrete health prediction, forecast,
Diagnosis is one of current main bugbear for being badly in need of capturing in the world.Highway, bridge, dam and other work civil buildings, all
It need to carry out regularly or health detection and monitoring in real time.But existing RC axial loading column means can't be adapted to completely
The need for development.The Chinese patents of Patent No. ZL 2,006 1 00200932.8《Concrete damage based on impedance imaging
Detection method and equipment》, for the purpose of detecting concrete damage, the technology of impedance imaging is employed, better effects are achieved.But
In actual use, because detecting electrode can not be compatible well with concrete, there is certain application limitation.
Patent No. ZL 2,012 1 0199249.0 Chinese patent《Detected using reinforcing bar as the distress in concrete of electrode
Instrument》, using the relation between emission electrode pumping signal and the response signal of receiving electrode, judge distress in concrete.The invention
Crack is predominantly detected, other abnormal behaviours are not detected.
Patent No. ZL 2,013 1 0029782.7 Chinese patent《Concrete monitor by electrode of reinforcing bar and
Monitor and detection method》, the electrical parameter between electrode, two reinforcing bar electrodes of detection is done using reinforcing bar, distress in concrete is judged.The hair
It is bright to propose a kind of monitoring method, but provide different method of testings not according to the different structure of armored concrete.
(3) content of the invention
The purpose of the present invention is to provide a kind of two-dimentional concrete health monitor method based on reinforcing bar electrode, for provided with flat
The two-dimentional concrete of the planar of row reinforcing bar provides health detection, and concrete lesion and forecasting and warning are found in time.
What the purpose of the present invention was achieved in that：
Utilize the n root reinforcing bar electrodes being parallel to each other of linear equidistant laying in same level in two-dimentional concrete, system
Into the two-dimentional concrete of planar, reinforcing bar electrode is connected to by concrete parameters measuring circuit by interface unit, in microprocessor control
Under system, sinusoidal signal generator sends different frequency signals in concrete parameters measuring circuit, is gated and measured by variable connector
Electrode；Voltage amplification is carried out to detected concrete both end voltage by concrete voltage amplifier, passes through resistive voltage amplifier
Voltage amplification is carried out to reference resistance both end voltage, different frequency is carried out to each interelectrode concrete on two-dimentional concrete
The measurement and monitoring of modulus of impedance and phase, the modulus of impedance of different frequency and the measurement of phase are included to adjacent four reinforcing bar electrodes
Parameter between all adjacent reinforcing bar electrodes of the two-dimentional concrete of planar under middle two interelectrode concrete parameters measurements, single-frequency
The part of parameter measurement three between all adjacent reinforcing bar electrodes of the two-dimentional concrete of planar under measurement and multiple typical frequencies.
Measure and obtain in the interelectrode concrete parameters measurement in centre two of adjacent four reinforcing bar electrodes to concrete
The modulus of impedance and phase value of concrete between middle two reinforcing bar electrodes.All parameters of planar two dimension concrete are surveyed under single-frequency
In amount, under measurement frequency, the concrete between all adjacent reinforcing bars in two-dimentional concrete is subjected to modulus of impedance and phase value is surveyed
Amount, and obtain modulus of impedance and phase value between all adjacent electrodes of the two-dimentional concrete of planar, the planar under multiple typical frequencies
Between two-dimentional all adjacent reinforcing bar electrodes of concrete in parameter measurement, several typical measured frequencies are selected by microprocessor, in allusion quotation
Under type measurement frequency, the modulus of impedance and phase value of the concrete between all adjacent reinforcing bars in two-dimentional concrete are measured.
Under single-frequency and under multiple typical frequencies, the modulus of impedance between all adjacent electrodes of planar two dimension concrete
And phase value, it is not included in the modulus of impedance and phase value of the concrete between the outermost reinforcing bar electrode in both sides and adjacent electrode.
Pass through the concrete between the adjacent reinforcing bar of normal two-dimentional concrete of the same specification that is measured under multiple typical frequencies
Modulus of impedance and phase value, measurement parameter corresponding with tested two-dimentional concrete respective frequencies correspondence position compare, and judge that two dimension is mixed
The health status of soil is coagulated, and finds out according to the data of different measurement points the particular location of concrete unusual condition.
It is by the method that reinforcing bar electrode is connected to concrete parameters measuring circuit by interface unit：Interface unit is n roots
Reinforcing bar electrode is combined with variable connector connection cable and variable connector, n root reinforcing bar electrodes and the numbering of variable connector connection cable
It is consistent with the reinforcing bar electrode numbering being connected；Every reinforcing bar electrode is with variable connector connection cable by an Electrode connector, one
The coaxial cable that one point four of root, 4 variable connector connectors are constituted, and are 1-4 by 4 variable connector connector sequence number numberings；It is many
Way switch combination selects a variable connector to constitute by four identical n, and microprocessor has control line to be connected to variable connector combination, often
Individual n selects the gating of a variable connector by microprocessor control, and it is No. 1-4 that 4 variable connectors are numbered respectively；Variable connector has n
Individual cable connector, it is 1-n to be numbered, and the reinforcing bar electrode that each reinforcing bar electrode is connected to same sequence number is connected with variable connector
On the Electrode connector of cable.
Serial number K reinforcing bar electrode and the variable connector connector 12-1 of variable connector connection cable and numbering be 1 it is many
The cable connector 14-K connections of way switch, serial number K reinforcing bar electrode and the variable connector of variable connector connection cable are patched
The cable connector 14-K for the variable connector that part 12-2 is 2 with numbering is connected, and serial number K reinforcing bar electrode is connected with variable connector
The cable connector 14-K for the variable connector that the variable connector connector 12-3 of cable is 3 with numbering is connected, serial number K reinforcing bar
The cable connector 14-K for the variable connector that electrode and the variable connector connector 12-4 of variable connector connection cable are 4 with numbering
Connection, wherein, K is more than or equal to 1, less than or equal to n.
The selection of reinforcing bar electrode and arrangement combine the design requirement of two-dimentional concrete to select.Two-dimentional concrete reinforcement electrode
Method to set up be：If n is reinforcing bar electrode sum, linear laying is parallel to each other and equidistant in same level in concrete
N root reinforcing bar electrodes, are 1,2,3 by reinforcing bar electrode number consecutively ... ..., n-2, n-1, n；Reinforcing bar electrode is patched by reinforcing bar and cable
Part is constituted, and reinforcing bar and cable-to-cable connector welding, reinforcing bar require in Transducers Embedded in Concrete that cable-to-cable connector exposes according to Concrete Design
It is used to be connected to reinforcing bar electrode and variable connector connection cable outside concrete.
Concrete parameters measuring circuit is by 4 measurement interfaces, communication interface, concrete voltage amplifier, resistance, sine letter
Number generator, resistive voltage amplifier, concrete electric pressing mold number converter, resistive voltage analog-digital converter and microprocessor structure
Into；Measurement interface is ordered as measurement interface 1, measurement interface 2, measurement interface 3, measurement interface 4 successively；Measure the one end of interface 4
It is connected with sinusoidal signal generator, the other end is connected with the measurement connector of No. 4 variable connectors；Measure the one end of interface 1 and resistance
Connection, the other end is connected with the measurement connector of No. 1 variable connector；Measure the one end of interface 3 and concrete voltage amplifier just
Input connection, the other end is connected with the measurement connector of No. 3 variable connectors；Measure the one end of interface 2 and concrete voltage amplifier
Negative input connection, the other end is connected with the measurement connector of No. 2 variable connectors；Measure interface 4 and measure the mixed of the connection of interface 1
Series circuit is constituted together with the output port of solidifying soil and sinusoidal signal generator, resistance；Concrete voltage amplifier connects measurement
After voltage amplification between mouth 2 and measurement interface 3, digital letter is converted analog signals into by concrete electric pressing mold number converter
Number give microprocessor；The voltage at resistive voltage amplifier amplification resistance two ends, will be simulated by resistive voltage analog-digital converter
Signal is converted to data signal and gives microprocessor；The frequency of microprocessor control sinusoidal signal generator and the choosing of variable connector
It is logical；Communication interface is used for microprocessor and data acquisition server communicates, and sends the instruction of data acquisition server to micro- place
Device is managed, the data of microprocessor are sent to data acquisition server.
The concrete parameters measuring process：
The first step under micro-processor control, selects 4 adjacent reinforcing bar electrodes, in face of 4 reinforcing bar electrodes, by reinforcing bar electricity
Pole number consecutively is No. 1, No. 2, No. 3, No. 4, and No. 1 reinforcing bar electrode is connected into concrete parameters respectively by variable connector combination
1, No. 2 reinforcing bar electrodes of measurement interface of measuring circuit are connected to 2, No. 3 reinforcing bar electricity of measurement interface of concrete parameters measuring circuit
3, No. 4 reinforcing bar electrodes of measurement interface that pole is connected to concrete parameters measuring circuit are connected to concrete parameters measuring circuit
Measure interface 4；
Second step, microprocessor set the output frequency of sinusoidal signal generator, and output frequency is represented with f；
The sample frequency of 3rd step, setting concrete electric pressing mold number converter and resistive voltage analog-digital converter is f's
100 times, while gathering the output data of concrete electric pressing mold number converter and resistive voltage analog-digital converter, continuous acquisition data
100, by the data DH1 of concrete electric pressing mold number converter, DH2, DH3 ... ..., DH98, DH99, DH100 are represented；Will
The data DZ1 of resistive voltage analog-digital converter, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 are represented；
4th step, calculating DH1, DH2, DH3 ... ..., DH98, DH99, DH100 average value, if average value is Pdh, are counted
DZ1, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 average value are calculated, if average value is Pdz；
5th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, wherein CH100 value, CH1=DH1-Pdh； CH2
=DH2-Pdh；CH3=DH3-Pdh；... CH98=DH98-Pdh；CH99=DH99-Pdh；CH100=DH100-Pdh；
6th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, wherein CZ100 value, CZ1=DZ1-Pdz；CZ2
=DZ2-Pdz；CZ3=DZ3-Pdz；... CZ98=DZ98-Pdz；CZ99=DZ99-Pdz；CZ100=DZ100-Pdz；
7th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, CH100 absolute value, and by CH1, CH2,
CH3 ... ..., CH98, CH99, CH100 absolute value are added, if CH1, CH2, CH3 ... ..., CH98, CH99, CH100's is exhausted
Value is added obtaining and for Sch；
8th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 absolute value, and by CZ1, CZ2,
CZ3 ... ..., CZ98, CZ99, CZ100 absolute value are added, if CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100's is exhausted
Value is added obtaining and for Scz；
9th step, with Sch divided by Scz, obtained business referred to as modulus of impedance is designated as ZKM；
Tenth step, CH1, CH2, CH3 ... ... are searched, CH98, CH99, CH100 is changed into the zero sequence of successively decreasing of negative from positive number
Number；Searching the method for zero passage sequence number of successively decreasing is, if CHn is positive number or zero, CHn+1 are negative, then zero passage of successively decreasing serial number n,
The zero passage that will successively decrease sequence number is recorded as JHn；CH1 is searched, CH2, CH3 ... ..., CH98, CH99, CH100 are changed into positive number from negative
It is incremented by zero passage sequence number；Search and be incremented by the method for zero passage sequence number and be, if CHm is negative or zero, CHm+1 are positive number, be then incremented by
Zero serial number m, JHm is recorded as by incremental zero passage sequence number；If not finding JHn, JHn=JHm+50 is made；
11st step, CZ1, CZ2, CZ3 ... ... are searched, CZ98, CZ99, CZ100 is changed into the zero passage of successively decreasing of negative from positive number
Sequence number, searching the method for zero passage sequence number of successively decreasing is, if CZn is positive number or zero, CZn+1 are negative, then zero passage of successively decreasing serial number
N, the zero passage that will successively decrease sequence number is recorded as JZn；CZ1 is searched, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 are changed into positive number from negative
Incremental zero passage sequence number, search and be incremented by the method for zero passage sequence number and be, if CZm is negative or zero, CZm+1 are positive number, be then incremented by
Zero passage serial number m, JZm is recorded as by incremental zero passage sequence number；If not finding JZn, JZn=JZm+50 is made；
If the 12nd step, JHn-JZn value are less than -25, CHZ=100+JHn-JZn；
If JHn-JZn value is more than 25, CHZ=JHn-JZn-100；
If JHn-JZn value is between -25 to 25, CHZ=JHn-JZn；
CHZ is referred to as phase.
The two-dimentional all parameter measurement steps of concrete of the planar are：
The first step, by No. 1 variable connector, No. 1 reinforcing bar electrode is connected to measurement interface 1, by No. 2 variable connectors,
No. 2 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, No. 3 reinforcing bar electrodes is connected to measurement interface 3, led to
No. 4 variable connectors are crossed, No. 4 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, modulus of impedance is measured
And phase；The modulus of impedance of measurement is designated as ZKM1, the phase of measurement is designated as CHZ1；
Second step, by No. 1 variable connector, No. 2 reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors,
No. 3 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, No. 4 reinforcing bar electrodes is connected to measurement interface 3, led to
No. 4 variable connectors are crossed, No. 5 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, modulus of impedance is measured
And phase；The modulus of impedance of measurement is designated as ZKM2, the phase of measurement is designated as CHZ2；
3rd step, by No. 1 variable connector, i reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors,
I+1 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, i+2 reinforcing bar electrodes are connected to measurement interface
3, by No. 4 variable connectors, i+3 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, measurement
Modulus of impedance and phase；The modulus of impedance of measurement is designated as ZKMi, the phase of measurement is designated as CHZi.i and is more than 2 and is less than or equal to
N-3 integer.
Monitoring the step of measuring is：
The first step, data acquisition server select several typical measurement frequencies, if typical measured frequency is f1,
F2 ... ... fk, microprocessor is sent to by typical measured frequency by communication interface；
Second step, the method according to all parameter measurement steps of planar two dimension concrete under single-frequency, for frequency
F1, f2 ... ... fk, measure the modulus of impedance ZKMi of the normal two-dimentional concrete of same specification, phase CHZi, wherein i are big respectively
In or equal to 1 and the integer less than or equal to n-3, and by transmitting measured values to data acquisition server；By data acquisition service
Device is recorded modulus of impedance ZKMi, the phase CHZi of normal two-dimentional concrete by frequency f1, f2 ... ... fk respectively, wherein, i be more than
Or the integer equal to 1 and less than or equal to n-3；
3rd step, under purpose monitoring state, for frequency f1, f2 ... ... fk, the monitored two dimension of measurement in real time is mixed respectively
Modulus of impedance ZKMi, the phase CHZi of soil are coagulated, wherein, i is the integer more than or equal to 1 and less than or equal to n-3, and will be surveyed
Value is transferred to data acquisition server；
4th step, data acquisition server are directed to frequency f1, f2 ... fk, which is respectively compared under identical frequency, is monitored two dimension
Concrete modulus of impedance ZKMi, phase CHZi, the modulus of impedance ZKMi with normal two-dimentional concrete, phase CHZi difference such as occur
Data deviation judges that monitored concrete is abnormal than larger, then, and abnormity point in i+1 electrodes between i+2 electrodes；Its
In, i is the integer more than or equal to 1 and less than or equal to n-3.
The positive effect of the present invention is：
1st, two-dimentional concrete health status is detected, and makes quality evaluation, particularly building construction, bridge in time to building
The count for much building concrete security situation of the people's livelihood such as beam engineering, hydraulic engineering makes accurate judgment.
2nd, concrete health status can be monitored in real time, concrete lesion and forecasting and warning are found in time, by security incident
Eliminate before generation, it is to avoid major accident occurs.
3rd, tester can be provided for two-dimentional concrete health monitoring, easy to use and reliable, Detection results are notable.
(4) illustrate
Fig. 1 is main assembly schematic diagram of the present invention.
Fig. 2 is the two-dimentional concrete schematic diagram of planar.
Fig. 3 is reinforcing bar electrode structure schematic diagram.
Fig. 4 is reinforcing bar electrode and variable connector connection cable.
Fig. 5 is that the n in variable connector combination selects a switch to constitute structure chart.
Fig. 6 is concrete parameters measuring circuit figure.
Fig. 7 is that n selects switch selection to select an on-off circuit figure for 64 in embodiment.
Fig. 8 is sinusoidal signal generator circuit diagram in concrete parameters measuring circuit.
Fig. 9 is amplifying circuit, and concrete voltage amplifier and resistive voltage amplifier use identical amplifying circuit
During Figure 10 is embodiment, microprocessor selects the circuit diagram of TMS320F2812 integrated circuits.
In figure, 1 planar two dimension concrete, 2 reinforcing bar electrodes are combined with variable connector connection cable, 3 variable connectors, 4 coagulations
Native parameter measurement circuit, 5 data acquisition servers, 6 concrete, 7-1~7-n reinforcing bars electrode, 8 reinforcing bars, 9 cable-to-cable connectors, 10
Electrode connector, 11 1 point of four coaxial cable, 12-1~12-4 variable connectors connector, 13n select an on-off circuit, 14-1~
14-n cable connectors, 15 measurement connectors, 16-1~16-4 measurements interface, 17 concrete voltage amplifiers, 18 resistance, 19
Sinusoidal signal generator, 20 resistive voltage amplifiers, 21 concrete electric pressing mold number converters, 22 resistive voltage analog-digital converters,
23 microprocessors, 24 communication interfaces.
(5) embodiment
The health monitoring of two-dimentional concrete of the invention based on reinforcing bar electrode.Referring to accompanying drawing 1.Overall structure includes planar two
Dimension concrete 1, reinforcing bar electrode combine 3, concrete parameters measuring circuit 4 and data with variable connector connection cable 2, variable connector
Acquisition server 5.
Referring to Fig. 2,3.
Required according to Concrete Design, determine the reinforcing bar electrode sum n of concrete.In the present embodiment, the reinforcing bar electricity of setting
Extremely sum n=64.N root reinforcing bar electrodes 7-1~7-n that linear isometry laying is parallel to each other in same level in concrete 6,
It is 1,2,3 by reinforcing bar electrode number consecutively ... ..., n-2, n-1, n.Reinforcing bar electrode is made up of reinforcing bar 8 and cable-to-cable connector 9, steel
Muscle 8 and cable-to-cable connector 9 are welded, in the Transducers Embedded in Concrete of reinforcing bar 8, and cable-to-cable connector 9 exposes to be used to be connected to reinforcing bar outside concrete
Electrode and variable connector connection cable 2.
Referring to Fig. 4.
Reinforcing bar electrode is connected with variable connector connection cable 2 for reinforcing bar electrode with variable connector.Reinforcing bar electrode and multichannel
A total of n roots of connection cable are switched, all reinforcing bar electrodes and variable connector connection cable all use identical structure, every reinforcing bar
Electrode is with variable connector connection cable by an Electrode connector 10, and one one point four 11,4 variable connectors of coaxial cable connect
Plug-in unit 12-1~12-4 is constituted.The numbering of reinforcing bar electrode and variable connector connection cable and the reinforcing bar electrode numbering one being connected
Cause.It is 1-4 by 4 variable connector connector sequence number numberings, and selects the cable connector of a switch to be connected with the n of same sequence number.
Referring to Fig. 5,7.
Variable connector combination 3 selects a switch to constitute by four identical n.It is No. 1-4 to select a switch to number respectively 4 n,
N selects the use of a switch by microprocessor control.
N selects a switch to constitute structure such as Fig. 5.N select a switch by n select an on-off circuit 13, cable connector 14-1~
14-n, measurement connector 15 are constituted.N selects a switch to have n cable connector, and it is 1-n to be numbered, cable connector with
The reinforcing bar electrode of same sequence number is connected with the variable connector connector of variable connector connection cable.Measure connector 15 and concrete
The measurement interface connection of parameter measurement circuit.
The n of the present embodiment selects an on-off circuit to select an on-off circuit circuit for 64.
64 select one n to select an on-off circuit such as Fig. 7.By the chip MM74HC4051 groups of 9 National Semiconductors
Into U1~U9.Connection end N1~N64 is connected with 64 BNC females respectively in figure, BNC females and reinforcing bar electrode and variable connector
The variable connector connector connection of connection cable.Connection end A, B, C, E, D, F and microprocessor are connected.
Referring to Fig. 6,8,9,10.
Concrete parameters measuring circuit is the critical component of the present invention.Concrete parameters measuring circuit has 4 measurement interfaces
16-1~16-4, measurement interface 1, measurement interface 2, measurement interface 3, measurement interface 4 are ordered as by measurement interface successively.Measurement connects
4 one end of mouth are connected with sinusoidal signal generator 19, and the other end is connected with the measurement connector 15 of No. 4 variable connectors.Measure interface 1
One end is connected with resistance 18, and the other end is connected with the measurement connector 15 of No. 1 variable connector.Measure the one end of interface 3 and concrete
The positive input connection of voltage amplifier 17, the other end is connected with the measurement connector 15 of No. 3 variable connectors.Measure the one end of interface 2
It is connected with the negative input of concrete voltage amplifier 17, the other end is connected with the measurement connector 15 of No. 2 variable connectors.Measurement connects
Mouthfuls 4 and the concrete and the output port of sinusoidal signal generator 19 of the measurement connection of interface 1, resistance 18 together with constitute series electrical
Road.Concrete voltage amplifier 17 by measure interface 2 and measurement interface 3 between voltage amplification after, by concrete electric pressing mold
Number converter 21 converts analog signals into data signal and gives microprocessor 23.Resistive voltage amplifier 20 amplifies 18 liang of resistance
The voltage at end, converts analog signals into data signal by resistive voltage analog-digital converter 22 and gives microprocessor 23.Micro- place
The frequency that device controls sinusoidal signal generator is managed, the gating of variable connector is controlled.Communication interface 24 is used for microprocessor and data
Acquisition server communicates, and sends the instruction of data acquisition server to microprocessor, sends the data of microprocessor to number
According to acquisition server.
Sinusoidal signal generator circuit diagram such as Fig. 8 sinusoidal signal generators US is DDS integrated circuits, model
AD9852, is produced by Analog Devices companies of the U.S..
Concrete voltage amplifier and resistive voltage amplifier use identical amplifying circuit, such as Fig. 9.UA1 is state of the U.S.
The integrated circuit DAC1210, UA2 of semiconductor company of family production are the integrated circuit that ANALOG DEVICES companies of the U.S. produce
AD811.A_IN is analog input end, and A_OUT is amplification output end.A_D1-A_D10 is connected to microprocessor, in microprocessor
Gain size is set under control.
Figure 10 is the microcontroller circuit figure that the present embodiment is used.It is integrated that microprocessor selection Texas Instruments produces
Circuit TMS320F2812, the integrated circuit is integrated with analog-digital converter.ADC_IN1 is connected to concrete voltage amplifier in figure,
ADC_IN2 is connected to the native voltage amplifier of resistance.DDS_A0-DDS_A5, DDS_D0-DDS_D7 are sinusoidal signal generator control
Interface processed, is connected to sinusoidal signal generator.A_D1-A_D10 is connected to programmable amplifier, controls the amplification of programmable amplifier
Multiple.
Data acquisition server selects various types of computers, such as notebook or desktop computer.By communication interface with it is micro-
Processor is connected, and is ordered for being sent to microprocessor, or receives the data of microprocessor, and it is different to judge whether concrete has
Often.
Communication interface circuit in the present embodiment is using the neck Electronic Science and Technology Co., Ltd. of Zhengzhou one M905R-433 wireless transparents
Transport module, data acquisition server and microprocessor respectively connect one, constitute wireless communication interface.
The selection of the miscellaneous part of the present embodiment is：Cable-to-cable connector 9 is the male of bnc connector；Electrode connector 10
For the female of bnc connector；Variable connector connector 12 is the male of bnc connector；Cable connector 14-1~14-n is BNC
The female of connector；Measure the male that connector 15 is bnc connector；Measure the mother that interface 16-1~16-4 is bnc connector
Head.
Detection of the present invention to two-dimentional armored concrete is implemented by microprocessor.Microprocessor control concrete parameters measurement
Sinusoidal signal generator sends different frequency signals in circuit, and the voltage for amplifying concrete and resistance two ends by amplifying circuit is believed
Number, the modulus of impedance of different frequency and the real-time measurement and monitoring of phase, measurement process are carried out to each electrode on two-dimentional concrete
Main to include measuring two in the middle of adjacent four reinforcing bar electrodes interelectrode concrete parameters, planar two dimension is mixed under single-frequency
All adjacent reinforcing bar electrodes of the two-dimentional concrete of planar under parameter measurement and multiple typical frequencies between solidifying all adjacent reinforcing bar electrodes of soil
Between the part of parameter measurement three
Two interelectrode concrete parameters measuring process in the middle of adjacent four reinforcing bar electrodes：
The first step under micro-processor control, selects 4 adjacent reinforcing bar electrodes, in face of 4 reinforcing bar electrodes, by reinforcing bar electricity
Pole number consecutively is No. 1, No. 2, No. 3, No. 4, and No. 1 reinforcing bar electrode is connected into concrete parameters respectively by variable connector combination
1, No. 2 reinforcing bar electrodes of measurement interface of measuring circuit are connected to 2, No. 3 reinforcing bar electricity of measurement interface of concrete parameters measuring circuit
3, No. 4 reinforcing bar electrodes of measurement interface that pole is connected to concrete parameters measuring circuit are connected to concrete parameters measuring circuit
Measure interface 4；
Second step, microprocessor set the output frequency of sinusoidal signal generator, and output frequency is represented with f；
The sample frequency of 3rd step, setting concrete electric pressing mold number converter and resistive voltage analog-digital converter is f's
100 times, while gathering the output data of concrete electric pressing mold number converter and resistive voltage analog-digital converter, continuous acquisition data
100, by the data DH1 of concrete electric pressing mold number converter, DH2, DH3 ... ..., DH98, DH99, DH100 are represented；Will
The data DZ1 of resistive voltage analog-digital converter, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 are represented；
4th step, calculating DH1, DH2, DH3 ... ..., DH98, DH99, DH100 average value, if average value is Pdh, are counted
DZ1, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 average value are calculated, if average value is Pdz；
5th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, wherein CH100 value, CH1=DH1-Pdh； CH2
=DH2-Pdh；CH3=DH3-Pdh；... CH98=DH98-Pdh；CH99=DH99-Pdh；CH100=DH100-Pdh；
6th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, wherein CZ100 value, CZ1=DZ1-Pdz；CZ2
=DZ2-Pdz；CZ3=DZ3-Pdz；... CZ98=DZ98-Pdz；CZ99=DZ99-Pdz；CZ100=DZ100-Pdz；
7th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, CH100 absolute value, and by CH1, CH2,
CH3 ... ..., CH98, CH99, CH100 absolute value are added, if CH1, CH2, CH3 ... ..., CH98, CH99, CH100's is exhausted
Value is added obtaining and for Sch；
8th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 absolute value, and by CZ1, CZ2,
CZ3 ... ..., CZ98, CZ99, CZ100 absolute value are added, if CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100's is exhausted
Value is added obtaining and for Scz；
9th step, with Sch divided by Scz, obtained business referred to as modulus of impedance is designated as ZKM；
Tenth step, CH1, CH2, CH3 ... ... are searched, CH98, CH99, CH100 is changed into the zero sequence of successively decreasing of negative from positive number
Number；Searching the method for zero passage sequence number of successively decreasing is, if CHn is positive number or zero, CHn+1 are negative, then zero passage of successively decreasing serial number n,
The zero passage that will successively decrease sequence number is recorded as JHn；CH1 is searched, CH2, CH3 ... ..., CH98, CH99, CH100 are changed into positive number from negative
It is incremented by zero passage sequence number；Search and be incremented by the method for zero passage sequence number and be, if CHm is negative or zero, CHm+1 are positive number, be then incremented by
Zero serial number m, JHm is recorded as by incremental zero passage sequence number；If not finding JHn, JHn=JHm+50 is made；
11st step, CZ1, CZ2, CZ3 ... ... are searched, CZ98, CZ99, CZ100 is changed into the zero passage of successively decreasing of negative from positive number
Sequence number, searching the method for zero passage sequence number of successively decreasing is, if CZn is positive number or zero, CZn+1 are negative, then zero passage of successively decreasing serial number
N, the zero passage that will successively decrease sequence number is recorded as JZn；CZ1 is searched, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 are changed into positive number from negative
Incremental zero passage sequence number, search and be incremented by the method for zero passage sequence number and be, if CZm is negative or zero, CZm+1 are positive number, be then incremented by
Zero passage serial number m, JZm is recorded as by incremental zero passage sequence number；If not finding JZn, JZn=JZm+50 is made；
If the 12nd step, JHn-JZn value are less than -25, CHZ=100+JHn-JZn；
If JHn-JZn value is more than 25, CHZ=JHn-JZn-100；
If JHn-JZn value is between -25 to 25, CHZ=JHn-JZn；
CHZ is referred to as phase.
Planar two dimension all parameter measurement steps of concrete are under single-frequency：
The first step, by No. 1 variable connector, No. 1 reinforcing bar electrode is connected to measurement interface 1, by No. 2 variable connectors,
No. 2 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, No. 3 reinforcing bar electrodes is connected to measurement interface 3, led to
No. 4 variable connectors are crossed, No. 4 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, modulus of impedance is measured
And phase；The modulus of impedance of measurement is designated as ZKM1, the phase of measurement is designated as CHZ1；
Second step, by No. 1 variable connector, No. 2 reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors,
No. 3 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, No. 4 reinforcing bar electrodes is connected to measurement interface 3, led to
No. 4 variable connectors are crossed, No. 5 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, modulus of impedance is measured
And phase；The modulus of impedance of measurement is designated as ZKM2, the phase of measurement is designated as CHZ2；
3rd step, by No. 1 variable connector, i reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors,
I+1 reinforcing bar electrodes are connected to measurement interface 2, by No. 3 variable connectors, i+2 reinforcing bar electrodes are connected to measurement interface
3, by No. 4 variable connectors, i+3 reinforcing bar electrodes are connected to measurement interface 4；According to concrete parameters measuring process, measurement
Modulus of impedance and phase；The modulus of impedance of measurement is designated as ZKMi, the phase of measurement is designated as CHZi.i and is more than 2 and is less than or equal to
N-3 integer.
It is the step of parameter measurement between all adjacent reinforcing bar electrodes of planar two dimension concrete under multiple typical frequencies：
The first step, data acquisition server select several typical measurement frequencies, if typical measured frequency is f1,
F2 ... ... fk, microprocessor is sent to by typical measured frequency by communication interface；
Second step, the method according to all parameter measurement steps of planar two dimension concrete under single-frequency, for frequency
F1, f2 ... ... fk, measure the modulus of impedance ZKMi of the normal two-dimentional concrete of same specification, phase CHZi, wherein i are big respectively
In or equal to 1 and the integer less than or equal to n-3, and by transmitting measured values to data acquisition server；By data acquisition service
Device is recorded modulus of impedance ZKMi, the phase CHZi of normal two-dimentional concrete by frequency f1, f2 ... ... fk respectively, wherein, i be more than
Or the integer equal to 1 and less than or equal to n-3；
3rd step, under purpose monitoring state, for frequency f1, f2 ... ... fk, the monitored two dimension of measurement in real time is mixed respectively
Modulus of impedance ZKMi, the phase CHZi of soil are coagulated, wherein, i is the integer more than or equal to 1 and less than or equal to n-3, and will be surveyed
Value is transferred to data acquisition server；
4th step, data acquisition server are directed to frequency f1, and f2 ... ... fk are respectively compared under identical frequency, are monitored two
Modulus of impedance ZKMi, the phase CHZi of dimension concrete, the difference of modulus of impedance ZKMi, phase CHZi with normal two-dimentional concrete, such as
There is data deviation than larger, then judge that monitored concrete is abnormal, and abnormity point i+1 electrodes to i+2 electrodes it
Between；Wherein, i is the integer more than or equal to 1 and less than or equal to n-3.
Claims (5)
1. a kind of two-dimentional concrete health monitor method based on reinforcing bar electrode, it is characterised in that：Using same in two-dimentional concrete
The n root reinforcing bar electrodes being parallel to each other of linear equidistant laying on one horizontal plane, are made the two-dimentional concrete (1) of planar, by even
Connect device and reinforcing bar electrode is connected to concrete parameters measuring circuit (4), under micro-processor control, concrete parameters measurement electricity
Sinusoidal signal generator (19) sends different frequency signals in road (4), and measuring electrode is gated by variable connector；Pass through concrete
Voltage amplifier (17) carries out voltage amplification to detected concrete both end voltage；By resistive voltage amplifier (20) to reference to electricity
Hinder both end voltage and carry out voltage amplification；Each interelectrode concrete on two-dimentional concrete is carried out different frequency modulus of impedance and
The measurement and monitoring of phase, the modulus of impedance of different frequency and the measurement of phase include the centre two to adjacent four reinforcing bar electrodes
Parameter measurement and many between all adjacent reinforcing bar electrodes of the two-dimentional concrete of planar under the measurement of interelectrode concrete parameters, single-frequency
The part of parameter measurement three between all adjacent reinforcing bar electrodes of planar two dimension concrete under individual typical frequencies；
Measurement obtains centre in the interelectrode concrete parameters measurement in centre two of adjacent four reinforcing bar electrodes to concrete
The modulus of impedance and phase value of concrete between two reinforcing bar electrodes；All parameter measurements of planar two dimension concrete under single-frequency
In, under measurement frequency, the concrete between all adjacent reinforcing bars in two-dimentional concrete is subjected to modulus of impedance and phase value is measured,
And obtain modulus of impedance and phase value between all adjacent electrodes of the two-dimentional concrete of planar；The planar two dimension under multiple typical frequencies
Between all adjacent reinforcing bar electrodes of concrete in parameter measurement, several typical measured frequencies are selected by microprocessor, in typical case's survey
Measure under frequency, measure the modulus of impedance and phase value of the concrete between all adjacent reinforcing bars in two-dimentional concrete；In single frequency
Under rate and under multiple typical frequencies, modulus of impedance and phase value between all adjacent electrodes of planar two dimension concrete are not wrapped
Include the modulus of impedance and phase value of the concrete between the outermost reinforcing bar electrode in both sides and adjacent electrode；
Pass through the impedance of the concrete between the adjacent reinforcing bar of normal two-dimentional concrete of the same specification that is measured under multiple typical frequencies
Mould and phase value, measurement parameter corresponding with tested two-dimentional concrete respective frequencies correspondence position compare, and judge two-dimentional concrete
Health status, and find out according to the data of different measurement points the particular location of concrete unusual condition；
It is described to the interelectrode concrete parameters measuring process of two reinforcing bars in the middle of adjacent four reinforcing bar electrodes：
The first step, under micro-processor control, selects 4 adjacent reinforcing bar electrodes, in face of 4 reinforcing bar electrodes, by reinforcing bar electrode
Number consecutively is No. 1, No. 2, No. 3, No. 4, and No. 1 reinforcing bar electrode is connected into concrete parameters respectively by variable connector combination surveys
1, No. 2 reinforcing bar electrodes of measurement interface of amount circuit are connected to 2, No. 3 reinforcing bar electrodes of measurement interface of concrete parameters measuring circuit
3, No. 4 reinforcing bar electrodes of measurement interface for being connected to concrete parameters measuring circuit are connected to the measurement of concrete parameters measuring circuit
Interface 4；
Second step, microprocessor set the output frequency of sinusoidal signal generator, and output frequency is represented with f；
The sample frequency of 3rd step, setting concrete electric pressing mold number converter and resistive voltage analog-digital converter is 100 times of f,
While the output data of concrete electric pressing mold number converter and resistive voltage analog-digital converter is gathered, continuous acquisition data 100,
By the data DH1 of concrete electric pressing mold number converter, DH2, DH3 ... ..., DH98, DH99, DH100 are represented；By resistive voltage
The data DZ1 of analog-digital converter, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 are represented；
4th step, calculating DH1, DH2, DH3 ... ..., DH98, DH99, DH100 average value, if average value is Pdh, are calculated
DZ1, DZ2, DZ3 ... ..., DZ98, DZ99, DZ100 average value, if average value is Pdz；
5th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, wherein CH100 value, CH1=DH1-Pdh；CH2=
DH2-Pdh；CH3=DH3-Pdh；... CH98=DH98-Pdh；CH99=DH99-Pdh；
CH100=DH100-Pdh；
6th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 value,
Wherein CZ1=DZ1-Pdz；CZ2=DZ2-Pdz；CZ3=DZ3-Pdz；... CZ98=DZ98-Pdz；
CZ99=DZ99-Pdz；CZ100=DZ100-Pdz；
7th step, calculate CH1, CH2, CH3 ... ..., CH98, CH99, CH100 absolute value, and by CH1, CH2, CH3 ... ...,
CH98, CH99, CH100 absolute value are added, if CH1, CH2, CH3 ... ..., CH98, CH99, CH100 absolute value is added
It is arriving and for Sch；
8th step, calculate CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 absolute value, and by CZ1, CZ2, CZ3 ... ...,
CZ98, CZ99, CZ100 absolute value are added, if CZ1, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 absolute value is added
It is arriving and for Scz；
9th step, with Sch divided by Scz, obtained business referred to as modulus of impedance is designated as ZKM；
Tenth step, CH1, CH2, CH3 ... ... are searched, CH98, CH99, CH100 is changed into the zero passage sequence number of successively decreasing of negative from positive number；
Searching the method for zero passage sequence number of successively decreasing is, if CHn is positive number or zero, CHn+1 are negative, then zero passage of successively decreasing serial number n will be passed
Subtract zero passage sequence number and be recorded as JHn；CH1, CH2, CH3 ... ... are searched, CH98, CH99, CH100 is changed into being incremented by for positive number from negative
Zero passage sequence number；Search and be incremented by the method for zero passage sequence number and be, if CHm is negative or zero, CHm+1 are positive number, be then incremented by zero sequence
Number be m, incremental zero passage sequence number is recorded as JHm；If not finding JHn, JHn=JHm+50 is made；
11st step, CZ1, CZ2, CZ3 ... ... are searched, CZ98, CZ99, CZ100 is changed into the zero sequence of successively decreasing of negative from positive number
Number, searching the method for zero passage sequence number of successively decreasing is, if CZn is positive number or zero, CZn+1 are negative, then zero passage of successively decreasing serial number n,
The zero passage that will successively decrease sequence number is recorded as JZn；CZ1 is searched, CZ2, CZ3 ... ..., CZ98, CZ99, CZ100 are changed into positive number from negative
It is incremented by zero passage sequence number, searches and be incremented by the method for zero passage sequence number and be, if CZm is negative or zero, CZm+1 are positive number, was then incremented by
Zero serial number m, JZm is recorded as by incremental zero passage sequence number；If not finding JZn, JZn=JZm+50 is made；
If the 12nd step, JHn-JZn value are less than -25, CHZ=100+JHn-JZn；
If JHn-JZn value is more than 25, CHZ=JHn-JZn-100；
If JHn-JZn value is between -25 to 25, CHZ=JHn-JZn；
CHZ is referred to as phase；
Planar two dimension all parameter measurement steps of concrete are under the single-frequency：
The first step, by No. 1 variable connector, No. 1 reinforcing bar electrode is connected to measurement interface 1, by No. 2 variable connectors, by No. 2
Reinforcing bar electrode is connected to measurement interface 2, by No. 3 variable connectors, No. 3 reinforcing bar electrodes is connected into measurement interface 3, pass through No. 4
No. 4 reinforcing bar electrodes are connected to measurement interface 4 by variable connector；According to concrete parameters measuring process, measurement modulus of impedance and phase
Position；The modulus of impedance of measurement is designated as ZKM1, the phase of measurement is designated as CHZ1；
Second step, by No. 1 variable connector, No. 2 reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors, by No. 3
Reinforcing bar electrode is connected to measurement interface 2, by No. 3 variable connectors, No. 4 reinforcing bar electrodes is connected into measurement interface 3, pass through No. 4
No. 5 reinforcing bar electrodes are connected to measurement interface 4 by variable connector；According to concrete parameters measuring process, measurement modulus of impedance and phase
Position；The modulus of impedance of measurement is designated as ZKM2, the phase of measurement is designated as CHZ2；
3rd step, by No. 1 variable connector, i reinforcing bar electrodes are connected to measurement interface 1, by No. 2 variable connectors, by i+1
Number reinforcing bar electrode is connected to measurement interface 2, by No. 3 variable connectors, i+2 reinforcing bar electrodes is connected into measurement interface 3, passed through
No. 4 variable connectors, measurement interface 4 is connected to by i+3 reinforcing bar electrodes；According to concrete parameters measuring process, modulus of impedance is measured
And phase；The modulus of impedance of measurement is designated as ZKMi, it is whole more than 2 and less than or equal to n-3 that the phase of measurement, which is designated as CHZi.i,
Number；
It is the step of parameter measurement between all adjacent reinforcing bar electrodes of planar two dimension concrete under the multiple typical frequencies：First
Step, data acquisition server select several typical measurement frequencies, if typical measured frequency is f1, f2 ... ... fk, by typical case's survey
Amount frequency is sent to microprocessor by communication interface；
Second step, the method according to all parameter measurement steps of planar two dimension concrete under single-frequency, for frequency f1,
F2 ... ... fk, measure the modulus of impedance ZKMi of the normal two-dimentional concrete of same specification respectively, phase CHZi, wherein i to be more than or
Integer equal to 1 and less than or equal to n-3, and by transmitting measured values to data acquisition server；Pressed by data acquisition server
Frequency f1, f2 ... ... fk record modulus of impedance ZKMi, the phase CHZi of normal two-dimentional concrete respectively, wherein, i is to be more than or wait
In 1 and less than or equal to n-3 integer；
3rd step, under purpose monitoring state, for frequency f1, f2 ... ... fk, the monitored two-dimentional concrete of measurement in real time respectively
Modulus of impedance ZKMi, phase CHZi, wherein, i is the integer more than or equal to 1 and less than or equal to n-3, and measured value is passed
It is defeated by data acquisition server.
2. the two-dimentional concrete health monitor method as claimed in claim 1 based on reinforcing bar electrode, it is characterised in that：By even
Connect device is by the method that reinforcing bar electrode is connected to concrete parameters measuring circuit (4)：Interface unit is n root reinforcing bar electrodes and many
Way switch connection cable (2) and variable connector combination (3), numbering and institute of the n root reinforcing bar electrodes with variable connector connection cable (2)
Reinforcing bar electrode (7-1~7-n) numbering of connection is consistent；Every reinforcing bar electrode is with variable connector connection cable (2) by an electrode
Connector (10), one one point four of coaxial cable (11), 4 variable connector connector 12-1~12-4 are constituted, by 4 multichannels
It is 1-4 to switch connector sequence number numbering；Variable connector combination selects a variable connector to constitute by four identical n, microprocessor
(23) control line is connected to variable connector combination, each n selects the gating of a variable connector to be controlled by microprocessor (23), 4
It is No. 1-4 that variable connector is numbered respectively；Variable connector has n cable connector (14-1~14-n), and it is 1-n to be numbered,
Each reinforcing bar electrode is connected on the Electrode connector (10) of the reinforcing bar electrode of same sequence number and variable connector connection cable (2).
3. the two-dimentional concrete health monitor method as claimed in claim 2 based on reinforcing bar electrode, it is characterised in that：The company
Connect device and combine (3) with variable connector connection cable (2) and variable connector for n root reinforcing bar electrodes, its reinforcing bar electrode is opened with multichannel
Pass connection cable and the connected mode of variable connector combination are：
The multichannel that serial number K reinforcing bar electrode is 1 with numbering with the variable connector connector 12-1 of variable connector connection cable (2)
Cable connector (14-K) connection of switch, serial number K reinforcing bar electrode and the variable connector of variable connector connection cable (2) connect
The cable connector (14-K) for the variable connector that plug-in unit 12-2 is 2 with numbering is connected, serial number K reinforcing bar electrode and variable connector
The cable connector (14-K) for the variable connector that the variable connector connector 12-3 of connection cable (2) is 3 with numbering is connected, sequence number
For the electricity of K reinforcing bar electrode and the variable connector connector 12-4 of variable connector connection cable (2) variable connectors for being 4 with numbering
Cable connector (14-K) is connected, wherein, all K are more than or equal to 1, less than or equal to n.
4. the two-dimentional concrete health monitor method as claimed in claim 1 based on reinforcing bar electrode, it is characterised in that：Reinforcing bar electricity
The selection of pole and arrangement combine the design requirement of two-dimentional concrete to select, and the method to set up of two-dimentional concrete reinforcement electrode is：
If n is reinforcing bar electrode sum, linear laying is parallel to each other and equidistant n root reinforcing bar electrodes in same level in concrete,
It is 1,2,3 by reinforcing bar electrode number consecutively ..., n-2, n-1, n；Reinforcing bar electrode is made up of reinforcing bar (8) and cable-to-cable connector (9),
Reinforcing bar (8) and cable-to-cable connector (9) are welded, and reinforcing bar (8) is required in Transducers Embedded in Concrete according to Concrete Design, cable-to-cable connector
(9) expose is used to be connected to reinforcing bar electrode and variable connector connection cable (2) outside concrete.
5. the two-dimentional concrete health monitor method as claimed in claim 1 based on reinforcing bar electrode, it is characterised in that：Concrete
Parameter measurement circuit is by 4 measurement interfaces (16-1~16-4), communication interface (24), concrete voltage amplifier (17), electricity
Hinder (18), sinusoidal signal generator (19), resistive voltage amplifier (20), concrete electric pressing mold number converter (21), resistance
Voltage analog-digital converter (22) and microprocessor (23) are constituted；Will measurement interface be ordered as successively measurement interface 1, measurement interface 2,
Measure interface 3, measurement interface 4；One end of measurement interface 4 is connected with sinusoidal signal generator (19), and the other end is opened with No. 4 multichannels
Measurement connector (15) connection of pass；One end of measurement interface 1 is connected with resistance (18), the survey of the other end and No. 1 variable connector
Measure connector (15) connection；One end of measurement interface 3 is connected with the positive input of concrete voltage amplifier (17), the other end and 3
Measurement connector (15) connection of number variable connector；Measure one end of interface 2 and the negative input of concrete voltage amplifier (17)
Connection, the other end is connected with the measurement connector (15) of No. 2 variable connectors；Measure the concrete that interface 4 and measurement interface 1 are connected
Series circuit is constituted together with output port, resistance with sinusoidal signal generator；Concrete voltage amplifier (17) connects measurement
After voltage amplification between mouth 2 and measurement interface 3, number is converted analog signals into by concrete electric pressing mold number converter (21)
Word signal gives microprocessor (23)；The voltage at resistive voltage amplifier (20) amplification resistance two ends, by resistive voltage modulus
Converter (22) converts analog signals into data signal and gives microprocessor；Microprocessor control sinusoidal signal generator (19)
Frequency and variable connector gating；Communication interface (24) is used for microprocessor and data acquisition server communicates, and data are adopted
The instruction of collection server sends microprocessor to, sends the data of microprocessor to data acquisition server；
4th step, data acquisition server are directed to frequency f1, and f2 ... ... fk are respectively compared under identical frequency, are monitored two dimension mixed
Modulus of impedance ZKMi, the phase CHZi and normally the modulus of impedance ZKMi of two-dimentional concrete, phase CHZi difference of soil are coagulated, number such as occurs
It is larger according to deviation ratio, then judge that monitored concrete is abnormal, and abnormity point in i+1 electrodes between i+2 electrodes；Wherein, i
For the integer more than or equal to 1 and less than or equal to n-3.
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| JP7141956B2 (en) * | 2019-02-04 | 2022-09-26 | 戸田建設株式会社 | Formwork for judging the strength of concrete when it is removed from the mold |
| WO2020194482A1 (en) * | 2019-03-26 | 2020-10-01 | ムネカタインダストリアルマシナリー株式会社 | Resistive sensor array |
| CN114296508B (en) * | 2021-12-30 | 2024-04-23 | 长沙巨杉智能科技有限公司 | Rock ore specimen impedance measurement signal source generating device |
| CN114622605B (en) * | 2022-03-11 | 2024-08-27 | 国网甘肃省电力公司经济技术研究院 | Concrete filling pile resistance tomography monitoring device and monitoring method |
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