CN207232088U - A kind of container corrosion detection device - Google Patents
A kind of container corrosion detection device Download PDFInfo
- Publication number
- CN207232088U CN207232088U CN201721359223.2U CN201721359223U CN207232088U CN 207232088 U CN207232088 U CN 207232088U CN 201721359223 U CN201721359223 U CN 201721359223U CN 207232088 U CN207232088 U CN 207232088U
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- China
- Prior art keywords
- master controller
- time
- detection device
- sensor
- circuit
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Abstract
The utility model discloses the utility model to provide a kind of container corrosion detection device, including first sensor, second sensor, signal transmission circuit, signal amplification circuit, comparator, time-to-digit converter and master controller, the master controller Connection Time digital quantizer, the time-to-digit converter connect first sensor by signal transmission circuit；The second sensor is connected with signal amplification circuit, the master controller is connected by gain control circuit with signal amplification circuit, the signal amplification circuit other end connects comparator, and the comparator is connected with time-to-digit converter, and affiliated time converter connects master controller.The master controller chain is connected to liquid crystal screen displays.The utility model has broken away from dependence of the high-acruracy survey to high frequency clock, has reduced the difficulty in circuit design and application by designing a kind of container corrosion detection device with High-precision time-to-digital converter.
Description
Technical field
Detection device field is the utility model is related to, more particularly to a kind of container corrosion detection device.
Background technology
The container for containing corrosive medium in use, due to the prolonged and repeated change of internal pressure, is easy to cause the appearance
Corrosion fatigue etc., which occurs, for device destroys, in order to ensure using safely, it is necessary to periodically carry out corrosion condition to container for such container
Detection, ultrasonic thickness measurement are one of means of detection corrosion.
Ultrasonic wave is a kind of Mechanical Longitudinal Waves for producing fluctuation in elastic fluid due to mechanical oscillation, it is uniformly situated between same
Velocity of wave when being propagated in matter is a constant；When from a kind of Medium Propagation to another medium, the meeting on the interface of two media
Produce reflection.So the interval time that ultrasonic pulse is issued to reception bottom reflection pulse from measured material surface is proportional to material
Expect thickness, this time is converted into thickness value represents, is measured material thickness.It is former with material by the material thickness of actual measurement
Beginning thickness is compared, you can knows the situation of change of material, container corrosion detection device is set based on this principle in this patent
Meter.
In the prior art, corrode time interval measurement in calibrator is as test scale, its principle using oscillating crystal
The clock oscillation periodicity undergone between two interval pulses is recorded by counting circuit, two pulse signals can be calculated
Between time difference, so the resolution ratio measured in theory i.e. trueness error be crystal a cycle of oscillation, at present improve essence
The technical way of degree is realized by improving the working frequency of oscillating crystal, and the raising of crystal oscillation frequency is to circuit elements
The performance requirement of device also improves, while increases the power consumption of instrument entirety；This adds larger to the design and application of circuit
Difficulty.
Present invention aims to overcome that the deficiency of the above prior art, there is provided a kind of container corrosion detection device, using new
Time ruler scheme connect with unique circuit, enabling while high-precision container corrosion detection is realized, connection is simple
Single and convenient installation, solves Conventional temporal scale arrangement and brings subsequent conditioning circuit to design and apply upper difficulty, reduce at the same time
The power consumption of instrument entirety.
Utility model content
In view of the drawbacks described above of the prior art, it is rotten that technical problem to be solved in the utility model is to provide a kind of container
Detection device is lost, is connected using new time ruler scheme with interlock circuit, enabling is realizing high-precision container corrosion inspection
While survey, connection is simple and conveniently installs, and solves Conventional temporal scale arrangement and bring subsequent conditioning circuit design and application upper
Difficulty, while reduce the power consumption of instrument entirety.
To achieve the above object, the utility model provides a kind of container corrosion detection device, including first sensor,
Two sensors, signal transmission circuit, signal amplification circuit, comparator, time-to-digit converter and master controller, the master control
Device Connection Time digital quantizer processed, the time-to-digit converter connect first sensor by signal transmission circuit；It is described
Second sensor is connected with signal amplification circuit, and the master controller is connected by gain control circuit with signal amplification circuit,
The signal amplification circuit other end connects comparator, and the comparator is connected with time-to-digit converter, affiliated time conversion
Device connects master controller.The master controller chain is connected to liquid crystal screen displays.
Preferably, the master controller is connected with memory.
Preferably, program is provided with the master controller is loaded into interface, keyboard interface and USB interface.
Preferably, it is provided with buzzer on the master controller.
Preferably, the master controller is connected with power supply.
The beneficial effects of the utility model are：The utility model carries High-precision time-to-digital converter by designing one kind
Container corrosion detection device, by the connection structure of special designing, while realizing lowering apparatus overall power, it is simple efficiently
The detection of high-precision container corrosion is realized on ground, has broken away from dependence of the high-acruracy survey to high frequency clock, reduce circuit design and
Difficulty in.
Brief description of the drawings
Fig. 1 is the structure diagram of one embodiment of the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Figure 1, a kind of container corrosion detection device, including first sensor, second sensor, signal transmitting electricity
Road, signal amplification circuit, comparator, time-to-digit converter and master controller, master controller Connection Time digital quantizer,
Time-to-digit converter connects first sensor by signal transmission circuit；Second sensor is connected with signal amplification circuit, main
Controller is connected by gain control circuit with signal amplification circuit, signal amplification circuit other end connection comparator, comparator
It is connected with time-to-digit converter, affiliated time converter connects master controller.Master controller chain is connected to liquid crystal screen displays.It is main
Controller is connected with I2C memories.Program is provided with master controller and is loaded into interface UARTO.Keyboard is provided with master controller
Interface and USB interface.Buzzer is provided with master controller.Master controller is connected with power supply.
Using the connection of the technical program, the high accuracy corrosion inspection that can be realized to container is loaded into using conventional program
Survey, realize the technique effect of the technical program.
High-precision container corrosion detection device, selects High-precision time-to-digital converter described in this programme（TDC）Chip is made
Scale is tested for time interval in ultrasonic thickness measurement, (Time-to-Digital Converter abbreviation TDC, are also referred to as TDC
For delay collimation method) chip utilize time-to-digital converter method measuring principle, realize to time interval（Pulse spacing）Carry out essence
Really measurement.The universal TDC-GP21 measurement chips of the preferred ACAM productions of TDC chips described in the technical program（It can also select
The TDC chips for the identical function that other manufacturers provide are to realize identical technique effect）To time interval (pulse spacing) into
The accurate measurement of row, its highest measurement precision can reach 45ps, and accessible precision is in theory when testing steel workpiece
0.00013mm(45ps*(5900m/s)/2=0.00013mm)。
The high-precision container corrosion detection device according to Fig. 1, by master controller（MCU）Synchronizing signal is exported, by hair
Transmit-receive radio road output high voltage narrow pulse incentive probe produces ultrasonic wave, and ultrasonic wave weak echo signal passes through amplification filtering process, then
Transistor-Transistor Logic level signal is shaped to by comparator circuit, TDC is sent into and is counted, count value is converted into thickness after sending to MCU processing
Degree, liquid crystal display LCD show thickness value.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of container corrosion detection device, it is characterized in that：Including first sensor, second sensor, signal transmission circuit, letter
Number amplifying circuit, comparator, time-to-digit converter and master controller, the master controller Connection Time digital quantizer,
The time-to-digit converter connects first sensor by signal transmission circuit；
The second sensor is connected with signal amplification circuit, and the master controller amplifies electricity by gain control circuit and signal
Road connects, and the signal amplification circuit other end connects comparator, and the comparator is connected with time-to-digit converter, when affiliated
Between converter connection master controller.
2. container corrosion detection device as claimed in claim 1, it is characterized in that：The master controller chain is connected to liquid crystal display and shows
Device and power supply.
3. container corrosion detection device as claimed in claim 2, it is characterized in that：Buzzer is provided with the master controller.
4. container corrosion detection device as claimed in claim 1, it is characterized in that：The master controller is connected with memory.
5. such as Claims 1-4 any one of them container corrosion detection device, it is characterized in that：Set on the master controller
There is program to be loaded into interface, keyboard interface and USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721359223.2U CN207232088U (en) | 2017-10-20 | 2017-10-20 | A kind of container corrosion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721359223.2U CN207232088U (en) | 2017-10-20 | 2017-10-20 | A kind of container corrosion detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232088U true CN207232088U (en) | 2018-04-13 |
Family
ID=61850774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721359223.2U Expired - Fee Related CN207232088U (en) | 2017-10-20 | 2017-10-20 | A kind of container corrosion detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207232088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355856A (en) * | 2022-10-21 | 2022-11-18 | 东莞市森威电子有限公司 | Ultrasonic thickness gauge |
-
2017
- 2017-10-20 CN CN201721359223.2U patent/CN207232088U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355856A (en) * | 2022-10-21 | 2022-11-18 | 东莞市森威电子有限公司 | Ultrasonic thickness gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20181020 |