CN202885792U - Constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating - Google Patents
Constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating Download PDFInfo
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- CN202885792U CN202885792U CN 201220616338 CN201220616338U CN202885792U CN 202885792 U CN202885792 U CN 202885792U CN 201220616338 CN201220616338 CN 201220616338 CN 201220616338 U CN201220616338 U CN 201220616338U CN 202885792 U CN202885792 U CN 202885792U
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Abstract
The utility model relates to a constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating. The constant-pressure ultrasonic thickness tester is formed by the connection of a housing and a measurement circuit in the housing. The constant-pressure ultrasonic thickness tester is mainly characterized in that a pressure sensor and an ultrasonic probe are embedded in the bottom of the housing and are connected with the measurement circuit; the measurement circuit includes a microprocessor which is respectively connected with an ultrasonic transmitting circuit, a counter circuit, a keyboard, a display drive circuit and a memory; the ultrasonic transmitting circuit is connected with ultrasonic transmitting probes; an ultrasonic receiving circuit is connected with ultrasonic receiving probes; the ultrasonic receiving circuit, a pressure sensitive control circuit, a filter rectifier circuit and the counter circuit are connected in sequence; the pressure sensitive control circuit is connected with the pressure sensor; and the display drive circuit is connected with an LCD (Liquid Crystal Display) screen. The constant-pressure ultrasonic thickness tester based on RTV coating provided by the utility model is reasonable in design, and can improve measurement accuracy and work efficiency and lower the power consumption by adopting the plurality of groups of transmitting probes and receiving probes.
Description
Technical field
The utility model belongs to the electric instrument apparatus field, especially a kind of level pressure audiogage based on RTV coating.
Background technology
In power overhead network, use in large quantities porcelain bobbin insulator.Because porcelain bobbin insulator is exposed in the air chronically, airborne flue dust and toxic and harmful consist of serious pollution to atmospheric environment, and salt density increases year by year, and the insulating property of porcelain bobbin insulator have been produced very large impact.For this reason, usually adopt on the porcelain bobbin insulator surface and coat RTV coating (heat radiation insulating heat conductive coating) realization to the defencive function of porcelain bobbin insulator, can improve significantly electric power power transmission and transformation equipment outer insulation pollution flashover voltage, guarantee the safe operation of power equipment.Because the RTV coating that porcelain bobbin insulator is smeared has stricter requirement, need in process of production the thickness of smearing is detected, existing thickness thicknessmeter generally uses the mode of one group of external ultrasonic probe to measure, and the problem of its existence is: the shortcoming such as measuring accuracy is low, complicated operation, power consumption are large.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the level pressure audiogage based on RTV coating of a kind of precision height, stable performance, low in energy consumption and convenient operation is provided.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of level pressure audiogage based on RTV coating, connected and composed by casing and inner metering circuit thereof, be provided with power switch on the casing surface, LCD display is connected with operation push-button and with metering circuit, be embedded with pressure transducer is connected with ultrasonic probe and with metering circuit in the bottom of casing, metering circuit comprises microprocessor, the ultrasound emission circuit, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit, keyboard, display driver circuit and storer, microprocessor respectively with the ultrasound emission circuit, counting circuit, keyboard, display driver circuit is connected with storer, the ultrasound emission circuit is connected with the ultrasound emission probe, ultrasonic receiving circuit is connected with ultrasonic receiving transducer, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit is connected in turn, pressure-sensitive control circuit is connected with pressure transducer, and display driver circuit is connected with LCD display.
And described ultrasonic probe is made of many groups ultrasound emission probe and a plurality of ultrasonic receiving transducer corresponding with it.
And described microprocessor also connects a USB interface.
Advantage of the present utility model and good effect are:
1, the ultrasound emission circuit of this thicknessmeter and ultrasonic receiving circuit adopt many group transmitting probes and many windings to receive the mode of probe, have improved measuring accuracy.
2, this thicknessmeter is inlaid in the bottom of casing with transmitting probe and receiving transducer, has saved the inconvenience that external probe brings operation, has improved the work efficiency of measuring.
3, this thicknessmeter only when pressure transducer detects certain pressure, just starts and measures Processing tasks by the unlatching control of pressure-sensitive control circuit realization surveying work, has guaranteed the validity of ultrasonic receiving circuit work, has reduced equipment power dissipation.
Description of drawings
Fig. 1 is casing synoptic diagram of the present utility model;
Fig. 2 is metering circuit block scheme of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of level pressure audiogage based on RTV coating, as shown in Figure 1, connected and composed by casing 2 and inner metering circuit thereof, be provided with power switch 1, LCD display 3 and operation push-button 4 on the casing surface and be connected with the metering circuit of casing inside, be embedded with pressure transducer is connected with ultrasonic probe 5 and with the metering circuit of casing inside in the bottom of casing, ultrasonic probe comprises ultrasound emission probe and ultrasonic receiving transducer, in the present embodiment, the quantity of ultrasonic probe is three groups, i.e. three ultrasound emission probes and three the ultrasonic receiving transducers corresponding with it.
Metering circuit in the casing comprises microprocessor, the ultrasound emission circuit, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit, keyboard, display driver circuit, storer and USB interface, microprocessor respectively with the ultrasound emission circuit, counting circuit, keyboard, display driver circuit, storer is connected with USB interface, the ultrasound emission circuit is connected with the ultrasound emission probe, the ultrasound emission circuit is launched ultrasonic signal under microprocessor-based control, ultrasonic receiving circuit is connected with ultrasonic receiving transducer, ultrasonic receiving circuit is by ultrasonic receiving transducer received ultrasonic signal, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit is connected in turn, pressure-sensitive control circuit is connected with pressure transducer, when the force value of pressure transducer feedback reaches the force value of setting, pressure-sensitive control circuit is in open mode, ultrasonic receiving circuit and filter rectifier are connected, by filter rectifier ultrasonic signal is carried out filtering, amplify and the rectification processing, display driver circuit is connected with LCD display on the casing and shows for information, and the result of microprocessor is preserved by storer and can be carried out data output by USB interface.This thicknessmeter only has when bottom and tested porcelain bobbin insulator Surface Contact and when producing certain pressure, just triggers surveying work, has guaranteed the low power operation of equipment.
Principle of work of the present utility model is: the ultrasound emission circuit produces certain ultrasonic signal and is received by ultrasonic receiving circuit, when pressure-sensitive control circuit is in open mode, the filtered rectification circuit of ultrasonic signal carries out filtering, amplification and rectification to be processed, pass to microprocessor by counting circuit at last, when using many group ultrasonic probes, microprocessor is processed data value of averaging of many groups ultrasonic probe collection, and this employing multi-group data value of averaging account form has improved the precision of measuring.The thickness range that this thicknessmeter can be measured is 0.01 millimeter to 2 millimeters, and measuring error is less than 1%.In use, only this thicknessmeter need be placed on the porcelain bobbin insulator surface and impose certain pressure and can finish measurement, the result who measures directly shows by LCD display, be kept at simultaneously in the storer, can also output in the external unit by USB interface, keyboard in this thicknessmeter is used to carry out certain feature operation, such as: carry out data in corresponding parameter adjustment, the read memory etc. according to different needs.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to equally the scope of the utility model protection.
Claims (3)
1. level pressure audiogage based on RTV coating, connected and composed by casing and inner metering circuit thereof, be provided with power switch on the casing surface, LCD display is connected with operation push-button and with metering circuit, it is characterized in that: be embedded with pressure transducer in the bottom of casing and be connected with ultrasonic probe and with metering circuit, metering circuit comprises microprocessor, the ultrasound emission circuit, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit, keyboard, display driver circuit and storer, microprocessor respectively with the ultrasound emission circuit, counting circuit, keyboard, display driver circuit is connected with storer, the ultrasound emission circuit is connected with the ultrasound emission probe, ultrasonic receiving circuit is connected with ultrasonic receiving transducer, ultrasonic receiving circuit, pressure-sensitive control circuit, filter rectifier, counting circuit is connected in turn, pressure-sensitive control circuit is connected with pressure transducer, and display driver circuit is connected with LCD display.
2. the level pressure audiogage based on RTV coating according to claim 1 is characterized in that: described ultrasonic probe is made of many groups ultrasound emission probe and a plurality of ultrasonic receiving transducer corresponding with it.
3. the level pressure audiogage based on RTV coating according to claim 1 and 2, it is characterized in that: described microprocessor also connects a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616338 CN202885792U (en) | 2012-11-20 | 2012-11-20 | Constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616338 CN202885792U (en) | 2012-11-20 | 2012-11-20 | Constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202885792U true CN202885792U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220616338 Expired - Fee Related CN202885792U (en) | 2012-11-20 | 2012-11-20 | Constant-pressure ultrasonic thickness tester based on RTV (room temperature vulcanized silicone rubber) coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202885792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352443A (en) * | 2015-11-02 | 2016-02-24 | 清华大学深圳研究生院 | Method for measuring thickness of RTV coating of insulator |
-
2012
- 2012-11-20 CN CN 201220616338 patent/CN202885792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352443A (en) * | 2015-11-02 | 2016-02-24 | 清华大学深圳研究生院 | Method for measuring thickness of RTV coating of insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN DONGJIA ELECTRIC POWER ENGINEERING TECHNOL Free format text: FORMER NAME: TIANJIN DONGJIA ELECTRIC POWER EQUIPMENT ANTICORROSION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300402 Tianjin District of Beichen City Road and South Road junction peak Patentee after: Tianjin Dongjia Electric Power Engineering Technology Co., Ltd. Address before: 300402 Tianjin District of Beichen City Road and South Road junction peak Patentee before: Tianjin Dongjia Electric Power Equipment Anticorrosion Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20191120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |