CN205426840U - A sensor probe that is used for capacitance method to measure green -sand water content - Google Patents
A sensor probe that is used for capacitance method to measure green -sand water content Download PDFInfo
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- CN205426840U CN205426840U CN201620193692.0U CN201620193692U CN205426840U CN 205426840 U CN205426840 U CN 205426840U CN 201620193692 U CN201620193692 U CN 201620193692U CN 205426840 U CN205426840 U CN 205426840U
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- exciting electrode
- temperature sensor
- insulating body
- green
- handle
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Abstract
The utility model provides a sensor probe that is used for capacitance method to measure green -sand water content, relates to casting detection area. It has been solved current capacitance method and has measured the sensor probe output capacitance value of green -sand water content and little and lack temperature measuring system's problem. It includes an exciting electrode, the 2nd exciting electrode, the 3rd exciting electrode, temperature sensor, insulating main part, filler, handle, first wire, second wire, handle fixing bolt, the 2nd signal output line of temperature sensor the first signal output line and temperature sensor. An exciting electrode, the 2nd exciting electrode and the 3rd exciting electrode inlay on the surface of insulating main part, its surface parallel and level surperficial and insulating main part, and the inside of insulating main part is cylindrical cavity to insert the filler, the surface is conical, and the handle passes through handle fixing bolt to be fixed in the upper end of insulating main part, and the lower extreme of insulating main part imbeds temperature sensor. The utility model discloses can improve the measurement accuracy of green -sand water content.
Description
Technical field
This utility model belongs to casting detection field, is specifically related to a kind of sensor probe for capacitance measurement green sand moisture.
Background technology
A kind of mixture that green-sand is made up of silica sand, bentonite, water, coal dust and other additives, wherein water content is the important component parameter of green-sand, is also one of parameter most sensitive in green-sand.Water content directly decides the quality of green-sand quality, and then affects the quality of foundry goods.Therefore, the method having developed a lot of measurement green sand moisture, wherein capacitance method is the most conventional fast electric measuring method, and it is under ac-excited source forcing, realizes moisture measurement according to the relation between capacitance and its water content of green-sand.During measurement, two exciting electrodes are inserted in green-sand, or utilize the special sample cylinder being inlaid with exciting electrode that green-sand is made sand sample, thus realize the measurement of capacitance.Additionally, the electric capacity of green-sand is influenced by temperature very big, especially for for the old sand that temperature is higher.Accordingly, it would be desirable to additionally measure the temperature of green-sand, the effective correction calculated as water content.The shortcoming of above-mentioned exciting electrode probe, one is the restriction due to electrode, and the capacitance of tested green-sand part is less, and the output signal therefore obtained is the most weak, and this adds certain difficulty for follow-up signal processing, even reduces certainty of measurement；Two is to need a set of extra green-sand temperature measurement system, and this makes whole measurement apparatus structure complicated.Therefore, it is necessary to the sensor probe of capacitance measurement green sand moisture is improved.
Summary of the invention
This utility model is to solve the problem that the sensor probe output capacitance value of existing capacitance measurement green sand moisture is little and lacks temperature measurement system, it is provided that a kind of sensor probe for capacitance measurement green sand moisture.
A kind of sensor probe for capacitance measurement green sand moisture, it includes that the first exciting electrode, the second exciting electrode, the 3rd exciting electrode, temperature sensor, insulating body, implant, handle, the first wire, the second wire, handle fix bolt, temperature sensor the first output line and temperature sensor secondary signal output lead；The first described exciting electrode and the 3rd exciting electrode and the second conductor in parallel are connected, second exciting electrode and the first wire are connected, first exciting electrode, second exciting electrode and the 3rd exciting electrode are embedded on the outer surface of insulating body, first exciting electrode, the surface of the second exciting electrode and the 3rd exciting electrode and the flush with outer surface of insulating body, the inside of insulating body is cylindrical cavity, outer surface is cone, the cylindrical cavity of the inside of insulating body inserts implant, the upper end being bolted to insulating body fixed by handle by handle, the lower end of insulating body embeds temperature sensor, the signal output part of temperature sensor is connected with temperature sensor the first output line and temperature sensor secondary signal output lead respectively.
Preferred: the coning angle of the mid portion of described insulating body is 10 degree, the coning angle of bottom is 60 degree.So select, in more convenient insertion green-sand, and make the first exciting electrode, the second exciting electrode and the 3rd exciting electrode be in close contact with green-sand.
Preferred: the material of described the first exciting electrode, the second exciting electrode and the 3rd exciting electrode is beryllium-bronze, and the material of insulating body and handle is engineering plastics.So select, be more suitable for measuring the capacitance of green-sand.
Preferred: described temperature sensor is critesistor or AD590.So select, while reducing sensor probe size, be more suitable for monitoring the temperature of green-sand.
Preferred: described implant is aluminium oxide or magnesium oxide.So select, be more suitable for fixed temperature sensor, the first wire, the second wire, temperature sensor the first output line and temperature sensor secondary signal output lead, and have preferable insulation effect.
This utility model compared with prior art has the effect that two capacitance sensors that the second exciting electrode and the first exciting electrode, the 3rd exciting electrode are constituted, and makes the capacitance recording green-sand become original 2 times, the beneficially subsequent treatment of signal；Temperature sensor bottom sensor probe can monitor the temperature value of green-sand in real time, provides exact value for compensating the water content error caused because of variations in temperature, can effectively revise the impact of variations in temperature；Temperature sensor and exciting electrode are integrated so that it is there is measurement green-sand capacitance and thermometric dual-use function.The certainty of measurement of green sand moisture it is greatly improved by above-mentioned aspect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sensor probe for capacitance measurement green sand moisture in this utility model.
Detailed description of the invention
Detailed description of the invention of the present utility model is elaborated below according to accompanying drawing 1.
Detailed description of the invention one: combine accompanying drawing 1 and present embodiment is described, a kind of sensor probe for capacitance measurement green sand moisture, it includes that first exciting electrode the 1, second exciting electrode the 2, the 3rd exciting electrode 3, temperature sensor 4, insulating body 5, implant 6, handle the 7, first wire the 8, second wire 9, handle fix bolt 7-1, temperature sensor the first output line 4-1 and temperature sensor secondary signal output lead 4-2；nullThe first described exciting electrode 1 is connected with the second wire 9 parallel connection with the 3rd exciting electrode 3，Second exciting electrode 2 is connected with the first wire 8，First exciting electrode 1、Second exciting electrode 2 and the 3rd exciting electrode 3 are embedded on the outer surface of insulating body 5，First exciting electrode 1、The surface of the second exciting electrode 2 and the 3rd exciting electrode 3 and the flush with outer surface of insulating body 5，The inside of insulating body 5 is cylindrical cavity、Outer surface is cone，The cylindrical cavity of the inside of insulating body 5 is inserted implant 6，Handle 7 is fixed bolt 7-1 by handle and is fixed on the upper end of insulating body 5，The lower end of insulating body 5 embeds temperature sensor 4，The signal output part of temperature sensor 4 is connected with temperature sensor the first output line 4-1 and temperature sensor secondary signal output lead 4-2 respectively.
Detailed description of the invention two: combine accompanying drawing 1 and present embodiment is described, first exciting electrode the 1, second exciting electrode 2 and the material of the 3rd exciting electrode 3 that present embodiment is described unlike detailed description of the invention one are beryllium-bronze.Other are identical with detailed description of the invention one.
Detailed description of the invention three: combine accompanying drawing 1 and present embodiment is described, present embodiment is unlike detailed description of the invention one or two, and described temperature sensor 4 is critesistor or AD590.Other are identical with detailed description of the invention one or two.
Detailed description of the invention four: combine accompanying drawing 1 and present embodiment is described, present embodiment is unlike one of detailed description of the invention one to three, and described insulating body 5 and the material of handle 7 are engineering plastics.Other are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: combine accompanying drawing 1 and present embodiment is described, present embodiment is unlike one of detailed description of the invention one to four, and described implant 6 is aluminium oxide or magnesium oxide.Other are identical with one of detailed description of the invention one to four.In conjunction with accompanying drawing 1, present embodiment being described, present embodiment is unlike one of detailed description of the invention one to five, and the coning angle of the mid portion of described insulating body 5 is 10 degree, and the coning angle of bottom is 60 degree.Other are identical with one of detailed description of the invention one to five.
This utility model is not limited to above-mentioned embodiment, it is also possible to be the reasonable combination of technical characteristic described in above-mentioned various embodiment.
Claims (6)
1. the sensor probe for capacitance measurement green sand moisture, it is characterized in that, it includes that the first exciting electrode (1), the second exciting electrode (2), the 3rd exciting electrode (3), temperature sensor (4), insulating body (5), implant (6), handle (7), the first wire (8), the second wire (9), handle fix bolt (7-1), temperature sensor the first output line (4-1) and temperature sensor secondary signal output lead (4-2)；nullDescribed the first exciting electrode (1) is connected with the second wire (9) parallel connection with the 3rd exciting electrode (3)，Second exciting electrode (2) is connected with the first wire (8)，First exciting electrode (1)、Second exciting electrode (2) and the 3rd exciting electrode (3) are embedded on the outer surface of insulating body (5)，First exciting electrode (1)、The surface of the second exciting electrode (2) and the 3rd exciting electrode (3) and the flush with outer surface of insulating body (5)，The inside of insulating body (5) is cylindrical cavity、Outer surface is cone，The cylindrical cavity of the inside of insulating body (5) is inserted implant (6)，Handle (7) is fixed bolt (7-1) by handle and is fixed on the upper end of insulating body (5)，The lower end of insulating body (5) embeds temperature sensor (4)，The signal output part of temperature sensor (4) is connected with temperature sensor the first output line (4-1) and temperature sensor secondary signal output lead (4-2) respectively.
A kind of sensor probe for capacitance measurement green sand moisture the most according to claim 1, it is characterised in that the material of described the first exciting electrode (1), the second exciting electrode (2) and the 3rd exciting electrode (3) is beryllium-bronze.
A kind of sensor probe for capacitance measurement green sand moisture the most according to claim 1, it is characterised in that described temperature sensor (4) is critesistor or AD590.
A kind of sensor probe for capacitance measurement green sand moisture the most according to claim 1, it is characterised in that described insulating body (5) and the material of handle (7) are engineering plastics.
A kind of sensor probe for capacitance measurement green sand moisture the most according to claim 1, it is characterised in that described implant (6) is aluminium oxide or magnesium oxide.
A kind of sensor probe for capacitance measurement green sand moisture the most according to claim 1, it is characterised in that the coning angle of the mid portion of described insulating body (5) is 10 degree, the coning angle of bottom is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193692.0U CN205426840U (en) | 2016-03-14 | 2016-03-14 | A sensor probe that is used for capacitance method to measure green -sand water content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193692.0U CN205426840U (en) | 2016-03-14 | 2016-03-14 | A sensor probe that is used for capacitance method to measure green -sand water content |
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| Publication Number | Publication Date |
|---|---|
| CN205426840U true CN205426840U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193692.0U Expired - Fee Related CN205426840U (en) | 2016-03-14 | 2016-03-14 | A sensor probe that is used for capacitance method to measure green -sand water content |
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| Country | Link |
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| CN (1) | CN205426840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110325301A (en) * | 2017-02-24 | 2019-10-11 | 新东工业株式会社 | The water filling of green-sand is blended system |
| TWI759683B (en) * | 2020-02-04 | 2022-04-01 | 桓達科技股份有限公司 | Moisture sensing module |
-
2016
- 2016-03-14 CN CN201620193692.0U patent/CN205426840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110325301A (en) * | 2017-02-24 | 2019-10-11 | 新东工业株式会社 | The water filling of green-sand is blended system |
| TWI759683B (en) * | 2020-02-04 | 2022-04-01 | 桓達科技股份有限公司 | Moisture sensing module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |