CN107478682A - A kind of municipal works material testing apparatus - Google Patents
A kind of municipal works material testing apparatus Download PDFInfo
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- CN107478682A CN107478682A CN201710722763.0A CN201710722763A CN107478682A CN 107478682 A CN107478682 A CN 107478682A CN 201710722763 A CN201710722763 A CN 201710722763A CN 107478682 A CN107478682 A CN 107478682A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of municipal works material testing apparatus, including electromagnetic detection module, amplification treatment circuit, A/D change-over circuits, CPU, grating range finder module, signal conditioning circuit, counting circuit, memory, display, keyboard, serial port and PC；The input that electromagnetic signal is transported to amplification treatment circuit by electromagnetic detection module is handled, and the output end of amplification treatment circuit is connected with the input of A/D change-over circuits, and the output end of A/D change-over circuits is connected with CPU input；The input that the displacement signal detected is transported to signal conditioning circuit by grating range finder module is handled, and the output end of signal conditioning circuit is connected with the input of counting circuit, and the output end of counting circuit is connected with CPU input；The output end of memory is connected with CPU input, and the output end of display is connected with CPU input, and the output end of keyboard is connected with CPU input, and serial port realizes two-way communication with CPU, and PC realizes two-way communication with serial port.
Description
Technical field
The present invention relates to measuring for materials field, more particularly to a kind of municipal works material testing apparatus.
Background technology
Concrete and reinforcing bar are as most popular construction material in the world.However, when reinforced concrete structure is long-term
Influenceed by outside adverse circumstances, or run into geological disaster such as earthquake etc., and during underproof construction requirement, its can be made durable
Property is had a greatly reduced quality, so as to severely impact mankind's activity.There is data to suggest that there is substantial amounts of construction project because endurance issues shadow
Ring normal use and have to reinforce it and repaired, or new construction is rectified and improved.
Detection for reinforced concrete structure both at home and abroad is mostly the Non-Destructive Testing used.According to builder and engineer
Operating environment in practice, there are following several detection methods in numerous detection methods：Ray detection, infrared imaging detection, visit
Ground detections of radar, electromagnetic detection etc..The problem of following also be present in above-mentioned several method：Investigation depth has much room for improvement, detects essence
Degree has much room for improvement.
The content of the invention
The present invention is in order to overcome deficiency of the prior art, there is provided a kind of municipal works material testing apparatus.
The present invention is to be achieved through the following technical solutions：
A kind of municipal works material testing apparatus, including electromagnetic detection module, amplification treatment circuit, A/D change-over circuits, CPU, light
Grid range finder module, signal conditioning circuit, counting circuit, memory, display, keyboard, serial port and PC；The electromagnetism inspection
The input that electromagnetic signal is transported to the amplification treatment circuit by survey module is handled, the output of the amplification treatment circuit
End is connected with the input of the A/D change-over circuits, and the output end of the A/D change-over circuits is connected with the input of the CPU；
The input that the displacement signal detected is transported to the signal conditioning circuit by the grating range finder module is handled, described
The output end of signal conditioning circuit is connected with the input of the counting circuit, the output end of the counting circuit and the CPU
Input be connected；The output end of the memory is connected with the input of the CPU, the output end of the display with it is described
CPU input is connected, and the output end of the keyboard is connected with the input of the CPU, and the serial port is realized with the CPU
Two-way communication, the PC realize two-way communication with the serial port.Also include power circuit, the power circuit carries for CPU
Power supply source.
Further, the CPU uses model STC89C52 single-chip microcomputer, operating voltage 2.0V-5.5V, work frequency
Rate is 0-40MHz, and has 32 I/O interfaces, and a high-gain sign-changing amplifier is commonly installed inside single-chip microcomputer, is formed
Oscillator.STC89C52 single chip has high efficiency, low power consuming, strong antijamming capability.
Further, the amplification treatment circuit uses chip ADA4841, and its quiescent current is 1.5 mA.ADA4841 makees
For a kind of rail-to-rail output amplifier, have the advantages that unit rising is slow, noise is smaller and distortion is relatively low, not only power consumption
It is low, the current noise of 2.1 nV/Hz low wideband voltage noiseproof feature and 1.4 pA/Hz is also provided, is had during 100 kHz splendid
- 105 dBc SFDRs.
Further, the chip model that the A/D change-over circuits use is ADS1222, data rate 240SPS, 4MHz
Clock, 20 effective resolutions, 0.0015% nonlinearity.It has the characteristics that intrepid performance and low-power consumption, uses
TSSOP-14 is encapsulated.ADS1222 high-resolution is higher, and lightly.
Further, serial communication of the serial port based on integrated chip MAX-232.Serial communication transmission information is set
Putting mode mainly includes two kinds：That is asynchronous and synchronous, the system STC89C52 is using full duplex asynchronous communication mode.
Compared with prior art, the beneficial effects of the invention are as follows：In the use of the present invention, need the reinforcing bar detected
When concrete passes through electromagnetic detection inside modules, fluctuation occurs in its output voltage, and this fluctuation is by signal enhanced processing electricity
Road is received and expanded, and subsequently into A/D change-over circuits, analog signal is converted into data signal, then in access single-chip microcomputer
In STC89C52 minimum systems, the size of adjacent inside concrete reinforcing bar distance is measured using grating range finder module, is started
When, driving grating encoder is moved, and its displacement information is transfused to photoelectric encoder, then passes through signal conditioning circuit, counts
Circuit, finally received by single-chip microcomputer STC89C52 minimum system.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the circuit diagram of the A/D change-over circuits in the present invention；
Fig. 3 is the circuit diagram of serial port in the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, a kind of described municipal works material testing apparatus, including electromagnetic detection module 1, enhanced processing electricity
Road 2, A/D change-over circuits 3, CPU4, grating range finder module 5, signal conditioning circuit 6, counting circuit 7, memory 8, display 9,
Keyboard 10, serial port 11 and PC 12；Electromagnetic signal is transported to the amplification treatment circuit 2 by the electromagnetic detection module 1
Input handled, the output end of the amplification treatment circuit 2 is connected with the input of the A/D change-over circuits 3, described
The output end of A/D change-over circuits 3 is connected with the input of the CPU4；The grating range finder module 5 believes the displacement detected
The input for number being transported to the signal conditioning circuit 6 is handled, output end and the counting of the signal conditioning circuit 6
The input of circuit 7 is connected, and the output end of the counting circuit 7 is connected with the input of the CPU4；The memory 8 it is defeated
Go out end with the input of the CPU4 to be connected, the output end of the display 9 is connected with the input of the CPU4, the keyboard
10 output end is connected with the input of the CPU4, and the serial port 11 realizes two-way communication, the PC with the CPU4
12 realize two-way communication with the serial port 11.Also include power circuit 13, the power circuit 13 provides power supply for CPU4.
The CPU4 uses model STC89C52 single-chip microcomputer, operating voltage 2.0V-5.5V, working frequency 0-
40MHz, and there are 32 I/O interfaces, and a high-gain sign-changing amplifier is commonly installed inside single-chip microcomputer, form vibration
Device.STC89C52 single chip has high efficiency, low power consuming, strong antijamming capability.
The amplification treatment circuit 2 uses chip ADA4841, and its quiescent current is 1.5 mA.ADA4841 is as a kind of rail
To-rail output amplifier, have the advantages that unit rising is slow, noise is smaller and distortion is relatively low, it is not only low in energy consumption, also provide
The current noise of 2.1 nV/Hz low wideband voltage noiseproof feature and 1.4 pA/Hz, there are splendid -105 during 100 kHz
DBc SFDRs.
Referring to Fig. 2, the chip model that the A/D change-over circuits 3 use is ADS1222, data rate 240SPS,
4MHz clocks, 20 effective resolutions, 0.0015% nonlinearity.It has the characteristics that intrepid performance and low-power consumption, uses
TSSOP-14 is encapsulated.ADS1222 high-resolution is higher, and lightly.
Referring to Fig. 3, the serial communication of the serial port 11 based on integrated chip MAX-232.Serial communication transmission information
Set-up mode mainly include two kinds：That is asynchronous and synchronous.The system STC89C52 is using full duplex asynchronous communication party
Formula.
In the use of the present invention, when needing the armored concrete that is detected to pass through electromagnetic detection inside modules, it defeated
Go out voltage and fluctuation occurs, this fluctuation is received and expanded by signal processing circuit, will subsequently into A/D change-over circuits
Analog signal is converted into data signal, then in single-chip microcomputer STC89C52 minimum systems are accessed, using grating range finder module come
Measure the size of adjacent inside concrete reinforcing bar distance, during startup, driving grating encoder is moved, and its displacement information is defeated
Enter photoelectric encoder, then pass through signal conditioning circuit, counting circuit, finally connect by single-chip microcomputer STC89C52 minimum system
Receive.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (6)
- A kind of 1. municipal works material testing apparatus, it is characterised in that：Including electromagnetic detection module（1）, amplification treatment circuit （2）, A/D change-over circuits（3）、CPU（4）, grating range finder module（5）, signal conditioning circuit（6）, counting circuit（7）, memory （8）, display（9）, keyboard（10）, serial port（11）And PC（12）；The electromagnetic detection module（1）Electromagnetic signal is defeated It is sent to the amplification treatment circuit（2）Input handled, the amplification treatment circuit（2）Output end and the A/D Change-over circuit（3）Input be connected, the A/D change-over circuits（3）Output end and the CPU（4）Input be connected；Institute State grating range finder module（5）The displacement signal detected is transported to the signal conditioning circuit（6）Input handled, The signal conditioning circuit（6）Output end and the counting circuit（7）Input be connected, the counting circuit（7）It is defeated Go out end and the CPU（4）Input be connected；The memory（8）Output end and the CPU（4）Input be connected, institute State display（9）Output end and the CPU（4）Input be connected, the keyboard（10）Output end and the CPU（4） Input be connected, the serial port（11）With the CPU（4）Realize two-way communication, the PC（12）With the serial port （11）Realize two-way communication.
- A kind of 2. municipal works material testing apparatus according to claim 1, it is characterised in that：The CPU（4）Using type Number single-chip microcomputer for being STC89C52, operating voltage 2.0V-5.5V, working frequency 0-40MHz, and there are 32 I/O interfaces, And a high-gain sign-changing amplifier is commonly installed inside single-chip microcomputer, form oscillator.
- A kind of 3. municipal works material testing apparatus according to claim 2, it is characterised in that：The enhanced processing electricity Road（2）Using chip ADA4841, its quiescent current is 1.5 mA.
- A kind of 4. municipal works material testing apparatus according to claim 3, it is characterised in that：The A/D change-over circuits （3）The chip model used is ADS1222, data rate 240SPS, 4MHz clock, 20 effective resolutions, 0.0015% Nonlinearity.
- A kind of 5. municipal works material testing apparatus according to claim 4, it is characterised in that：The serial port（11）Base In integrated chip MAX-232 serial communication.
- A kind of 6. municipal works material testing apparatus according to claim 5, it is characterised in that：Also include power circuit （13）, the power circuit（13）For CPU（4）Power supply is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722763.0A CN107478682A (en) | 2017-08-22 | 2017-08-22 | A kind of municipal works material testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722763.0A CN107478682A (en) | 2017-08-22 | 2017-08-22 | A kind of municipal works material testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107478682A true CN107478682A (en) | 2017-12-15 |
Family
ID=60602075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710722763.0A Pending CN107478682A (en) | 2017-08-22 | 2017-08-22 | A kind of municipal works material testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107478682A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292572A (en) * | 2006-04-25 | 2007-11-08 | Kyushu Institute Of Technology | Nondestructive inspection method and device |
| CN104613859A (en) * | 2015-02-05 | 2015-05-13 | 交通运输部公路科学研究所 | Electromagnetic sensing principle based inspection component of concrete reinforcement detector |
| CN204401422U (en) * | 2014-12-31 | 2015-06-17 | 南京信息工程大学 | A kind of concrete rolls state of progress alarm set |
-
2017
- 2017-08-22 CN CN201710722763.0A patent/CN107478682A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292572A (en) * | 2006-04-25 | 2007-11-08 | Kyushu Institute Of Technology | Nondestructive inspection method and device |
| CN204401422U (en) * | 2014-12-31 | 2015-06-17 | 南京信息工程大学 | A kind of concrete rolls state of progress alarm set |
| CN104613859A (en) * | 2015-02-05 | 2015-05-13 | 交通运输部公路科学研究所 | Electromagnetic sensing principle based inspection component of concrete reinforcement detector |
Non-Patent Citations (1)
| Title |
|---|
| 田秀: "基于STM32的钢筋混凝土检测系统的研究与设计", 《万方数据库知识库服务平台》 * |
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Application publication date: 20171215 |
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