CN105674868A - Pipeline inner-wall coating thickness detection system - Google Patents
Pipeline inner-wall coating thickness detection system Download PDFInfo
- Publication number
- CN105674868A CN105674868A CN201610053058.1A CN201610053058A CN105674868A CN 105674868 A CN105674868 A CN 105674868A CN 201610053058 A CN201610053058 A CN 201610053058A CN 105674868 A CN105674868 A CN 105674868A
- Authority
- CN
- China
- Prior art keywords
- coating thickness
- sensor
- follower
- detecting system
- pipe internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
Abstract
The invention discloses a pipeline inner-wall coating thickness detection system. The system comprises an oscillator, a buffer, a power amplifier, a sensor, a follower, a full-wave rectifier, a filter, a subtracter, an amplifier, a secondary follower, a convertor, an optoelectronic isolator and a shaper, which are electrically connected in sequence. The power amplifier is connected with the sensor through an excitation channel; and the sensor is connected with the follower through a full-wave rectification circuit. Through the structure above, the pipeline inner-wall coating thickness detection system reduces influence of signal interference of each line and stray capacitance during measuring, and has the advantages of stable measurement voltage, and improving stability of a measuring circuit and measurement precision.
Description
Technical field
The present invention relates to Thickness sensitivity and control system, particularly relate to ancient piece of jade, round, flat and with a hole in its centre coat thickness detection system in a kind of pipeline.
Background technology
Coating thickness measurement has particularly important meaning in modern industry produces. Inner-walls of duct corrosion-inhibiting coating Thickness sensitivity is the important step of pipeline quality detection. Conventional detection system, has signal disturbing strong, and workload is big, the time is long, the shortcoming that prohibited data detection is true, it is impossible to meet the exfactory inspection standard of high-quality pipeline.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of pipe internal coating thickness detecting system, decrease the signal disturbing of each circuit during measurement and the impact of parasitic capacitance, there is measurement voltage stabilization, the stability that improve measuring circuit and certainty of measurement feature.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of pipe internal coating thickness detecting system, including the oscillator being electrically connected successively, buffer, power amplifier, sensor, follower, full wave rectifier, wave filter, subtractor, amplifier, secondary follower, transducer, photoisolator and reshaper, it is connected by excitatory passage between described power amplifier and sensor, between described sensor and follower, adopts full-wave rectifying circuit to be connected.
In one preferred embodiments of the present invention, described oscillator is sine-wave oscillator.
In one preferred embodiments of the present invention, described transducer is A/D650 transducer.
In one preferred embodiments of the present invention, described photoisolator is photoelectrical coupler.
In one preferred embodiments of the present invention, described detection system also includes electric machine controller, and described electric machine controller is connected with master controller.
In one preferred embodiments of the present invention, described master controller is connected with reshaper outfan.
The invention has the beneficial effects as follows: one pipe internal coating thickness detecting system of the present invention, decrease the signal disturbing of each circuit during measurement and the impact of parasitic capacitance that there is measurement voltage stabilization, the stability that improve measuring circuit and certainty of measurement feature.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is a kind of pipe internal coating thickness detecting system one connection diagram of the present invention.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention provides following technical scheme.
A kind of pipe internal coating thickness detecting system, including the oscillator 1 being electrically connected successively, buffer 2, power amplifier 3, sensor 4, follower 5, full wave rectifier 6, wave filter 7, subtractor 8, amplifier 9, secondary follower 10, transducer 11, photoisolator 12 and reshaper 13, it is connected by excitatory passage between described power amplifier 3 and sensor 4, between described sensor 4 and follower 5, adopts full-wave rectifying circuit to be connected.
Described oscillator 1 is sine-wave oscillator.
Described transducer 11 is A/D650 transducer.
Described photoisolator 12 is photoelectrical coupler.
Described detection system also includes electric machine controller 14, and described electric machine controller 14 is connected with master controller 15.
Described master controller 15 is connected with reshaper 13 outfan.
The invention has the beneficial effects as follows: one pipe internal coating thickness detecting system of the present invention, decrease the signal disturbing of each circuit during measurement and the impact of parasitic capacitance that there is measurement voltage stabilization, the stability that improve measuring circuit and certainty of measurement feature.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in the scope of patent protection of the present invention.
Claims (6)
1. a pipe internal coating thickness detecting system, it is characterized in that, including the oscillator being electrically connected successively, buffer, power amplifier, sensor, follower, full wave rectifier, wave filter, subtractor, amplifier, secondary follower, transducer, photoisolator and reshaper, it is connected by excitatory passage between described power amplifier and sensor, between described sensor and follower, adopts full-wave rectifying circuit to be connected.
2. pipe internal coating thickness detecting system according to claim 1, it is characterised in that described oscillator is sine-wave oscillator.
3. pipe internal coating thickness detecting system according to claim 1, it is characterised in that described transducer is A/D650 transducer.
4. pipe internal coating thickness detecting system according to claim 1, it is characterised in that described photoisolator is photoelectrical coupler.
5. pipe internal coating thickness detecting system according to claim 1, it is characterised in that described detection system also includes electric machine controller, and described electric machine controller is connected with master controller.
6. pipe internal coating thickness detecting system according to claim 5, it is characterised in that described master controller is connected with reshaper outfan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053058.1A CN105674868A (en) | 2016-01-27 | 2016-01-27 | Pipeline inner-wall coating thickness detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053058.1A CN105674868A (en) | 2016-01-27 | 2016-01-27 | Pipeline inner-wall coating thickness detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105674868A true CN105674868A (en) | 2016-06-15 |
Family
ID=56302996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053058.1A Pending CN105674868A (en) | 2016-01-27 | 2016-01-27 | Pipeline inner-wall coating thickness detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674868A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017869A (en) * | 1989-12-14 | 1991-05-21 | General Electric Company | Swept frequency eddy current system for measuring coating thickness |
| CN2244179Y (en) * | 1995-08-01 | 1997-01-01 | 西安交通大学 | Thickness measuring instrument for boriding layer |
| CN2283829Y (en) * | 1996-12-10 | 1998-06-10 | 姚广仁 | Intelligence magnetic means coating thickness measuring instrument |
| CN1844842A (en) * | 2006-04-27 | 2006-10-11 | 扬州大学 | Column-shaped metal film thickness measurer |
| CN202209937U (en) * | 2011-09-02 | 2012-05-02 | 大连英奇科技发展有限公司 | Thickness meter |
-
2016
- 2016-01-27 CN CN201610053058.1A patent/CN105674868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017869A (en) * | 1989-12-14 | 1991-05-21 | General Electric Company | Swept frequency eddy current system for measuring coating thickness |
| CN2244179Y (en) * | 1995-08-01 | 1997-01-01 | 西安交通大学 | Thickness measuring instrument for boriding layer |
| CN2283829Y (en) * | 1996-12-10 | 1998-06-10 | 姚广仁 | Intelligence magnetic means coating thickness measuring instrument |
| CN1844842A (en) * | 2006-04-27 | 2006-10-11 | 扬州大学 | Column-shaped metal film thickness measurer |
| CN202209937U (en) * | 2011-09-02 | 2012-05-02 | 大连英奇科技发展有限公司 | Thickness meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |