CN103868640B - Double micro-digital fluid piezometers - Google Patents
Double micro-digital fluid piezometers Download PDFInfo
- Publication number
- CN103868640B CN103868640B CN201210586517.4A CN201210586517A CN103868640B CN 103868640 B CN103868640 B CN 103868640B CN 201210586517 A CN201210586517 A CN 201210586517A CN 103868640 B CN103868640 B CN 103868640B
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- China
- Prior art keywords
- coil
- hydrargyrum
- skeleton
- ripple film
- epoxy resin
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- 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.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
A kind of double micro-digital fluid piezometer, by spelling cap, ripple film, skeleton, coil, digital circuit, power supply, switch, hydrargyrum and epoxy resin composition, ripple film is had on funnel-form skeleton, between be full of hydrargyrum, ripple film pressurized, hydrargyrum under ripple film gets into formation hydrargyrum post in the capillary tube on coil, ripple film upward pressure is big, capillary tube forms mercury column the highest, owing to a part for capillary wall has been the copper core of insullac, the mercury column that can conduct electricity makes coil short, when power supply passes through coil, power supply will become big, the electric current of change is by after digital circuit, fluid pressure size is shown in LCDs by numeral.Owing to skeleton and coil impregnate in the epoxy, fixing do not have moving component in the enclosure, it 1, simple in construction, 2, use digital technology, it is simple to centralized Control, 3, overload capacity strong, 4, precision high duplication good, 5, non-maintaining, 6, low cost of manufacture.
Description
Art
The double micro-digital fluid piezometer of the present invention relates to a kind of pressure measuring instruments, and its volume is little, and range is big, overload capacity
By force, particularly suitable micro pressure measuring.
Background technology
In daily life, commercial production has fluid pressure measxurement everywhere, especially in chemical industry fluid pressure measxurement
Management, the precision of measurement, the reliability of measurement, it is related to safety in production.
Summary of the invention
Piezometer generally pointer-type at present, range is little, and overload capacity is low, reading inaccuracy, uses non-ferrous metal, manufactures
Complexity, and want periodic inspection, ensureing certainty of measurement, especially inconvenience uses number technology, integrating control, and electronic pressure meter
Then price is big, and operating environment requirements is high.For overcoming existing deficiency, providing a kind of double micro-digital fluid piezometer to people, it is 1. years old
Simple in construction, 2. uses number technology, it is simple to centralized Control, and 3. overload capacity is strong, and 4. precision is high, reproducible, the most non-maintaining,
6. low cost of manufacture.
Solve its technical problem be employed technical scheme comprise that；Double micro-digital fluid pressure in respect of sensor, containment vessel and
Digital circuit three part forms.Sensor is made up of ripple film, skeleton, coil, hydrargyrum and epoxy resin, the tapered funnel of skeleton
Shape, is full of hydrargyrum, hydrargyrum has ripple film, and the projection of frame center has two parallel spiral shape prolate bars, and coil is wound on prolate bar,
Another prolate bar is pressed on coil, fixes with epoxy resin, has a long ditch of spill outside coil, and the bottom of its ditch is the enamel-cover of dew copper
Line, the both sides of its ditch are epoxy resin, and the top of its ditch is prolate bar, the capillary tube being combined into, one with frame center's hole phase
Logical, other end is blocked by epoxy resin in the outside of coil, and dipping is fixed in the enclosure in the epoxy.Digital circuit has list
Sheet machine, modulus conversion chip, LCDs, power supply, switch and base plate composition.Containment vessel has spelling cap, sheet glass, shell and biography
Ripple film composition on sensor, presses sheet glass, ripple film on shell by spelling cap, sensor and numeral circuit protection is fixed on
Wherein.
Use such scheme, the sky when fluid pressure acts on ripple film, in the hydrargyrum extruding capillary tube that ripple film is following
Gas, after the air compression in capillary tube, volume reduces, and hydrargyrum forms mercury column, the air pressure in hydrargyrum and capillary tube in capillary tube
Time equal, mercury column length is constant, and mercury column makes coil partial short-circuit, makes coil resistance diminish, and electric current becomes big, and the electric current of change is logical
Enter number electronic circuit after crossing digital-to-analogue conversion, fluid pressure size is shown in LCDs.
Owing to Sensor section surrounding is fixed by epoxy resin, there is no moving component, its structure and stable performance, prolonged resistance to
With, and number electronic circuit is ripe, device is reliable, the double micro-number manometer of the present invention, and it is truly realized 1. simple in construction, 2. adopts
By several sub-technology, it is simple to centralized Control, 3. overload capacity is strong, and 4. precision high duplication is good, the most non-maintaining, 6. low cost of manufacture.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1. sectional view of the present invention,
Fig. 2. Figure 1A-A sectional stretch-out view of the present invention,
In Fig. 1 .2,1. spell cap, 2. epoxy resin, 3. glass, 4. LCDs, 5. single-chip microcomputer, 6. base plate, 7. coil,
8. skeleton, 9. ripple film, 10. power supply, 11. shells, 12. hydrargyrum, 13. switches.
Detailed description of the invention
As are shown in figure 1.2, the double micro-digital fluid pressure of invention is in respect of sensor, containment vessel and digital circuit three part group
Become.Sensor has ripple film (9), skeleton (8), coil (7), hydrargyrum (12) and epoxy resin (2) composition, skeleton (8) tapered leakage
Bucket-shaped, it is full of hydrargyrum (12), hydrargyrum (12) has ripple film (9), the projection at skeleton (8) center have two parallel spiral shape prolate bars,
Coil (7) is wound on prolate bar, and another prolate bar is pressed on coil (7), fixes with epoxy resin (2), has one recessed outside coil (7)
The long ditch of shape, the bottom of its ditch is the enamel-covered wire of dew copper, and the both sides of its ditch are epoxy resin (2), and the top of its ditch is prolate bar, group
Close capillary tube, one, capillary tube communicates with skeleton (8) centre bore, other end in the outside of coil (7) by epoxy resin
(2) blocking, skeleton (8) and coil (7) are immersed in epoxy resin (2) to be fixed in the enclosure.Digital circuit has single-chip microcomputer (5),
LCDs (4), power supply (10), switch (13) composition, be fixed on base plate (6).Containment vessel has spelling cap (1), sheet glass
(3), shell (11) and ripple film (9) form, by spelling cap (1) pressure sheet glass (3), ripple film (9) on shell, by sensor
It is fixed therein with numeral circuit protection.
Use such scheme, when fluid pressure acts on ripple film (9), ripple film (9) hydrargyrum (12) extruding hair below
Air in tubule, after the air compression in capillary tube, volume reduces, and hydrargyrum (12) forms mercury column in capillary tube, when hydrargyrum and capillary
When air pressure in pipe is equal, mercury column length is constant, and mercury column makes coil (7) partial short-circuit, makes coil (7) resistance diminish, electricity
Rheology is big, the electric current of change, by entering number electronic circuit after digital-to-analogue conversion, showing fluid pressure in LCDs (4).
According to Fig. 1, there is capillary tube on coil (7) surface of the present invention shown in 2, and capillary wall is by skeleton (8), epoxy resin
And gone copper core three part of insullac to form (2).
According to Fig. 1, the present invention shown in 2 coil and skeleton in the shape of a spiral, be fixed in shell with epoxy resin (2).
Numerical monitor measured value is used according to Fig. 1, the present invention shown in 2.
Using such scheme, when fluid pressure acts on ripple film (9), the air in extruding capillary tube, in capillary tube
Air compression after volume reduce, hydrargyrum (12) forms mercury column, the atmospheric pressure phase in hydrargyrum (12) and capillary tube in capillary tube
Deng time, mercury column length is constant, and mercury column makes coil (7) partial short-circuit, makes coil (7) resistance diminish, and electric current becomes big, the electric current of change
By entering number electronic circuit after digital-to-analogue conversion, fluid pressure is shown in LCDs (4).
Owing to Sensor section surrounding is fixed by epoxy resin (2), there is no moving component, its structure and stable performance, warp
The most durable, and number electronic circuit is ripe, device is reliable, the double micro-digital fluid piezometer of the present invention, and it is truly realized 1. simple in construction,
2. using number technology, it is simple to centralized Control, 3. overload capacity is strong, and 4. precision high duplication is good, the most non-maintaining, 6. manufacturing cost
Low.
Claims (2)
1. a double micro-digital fluid piezometer
It is made up of hydrargyrum, ripple film, skeleton, coil, power supply, single-chip microcomputer, switch, shell, spelling cap, power supply, single-chip microcomputer, liquid crystal display
Screen is fixed on base plate, and switch is fixed on shell, ripple film and tapered funnelform skeleton, is spelled cap and is fixed on shell
On, it being full of hydrargyrum between them, there are two parallel prolate bars in frame center, and coil is enclosed within prolate bar, the outer capillary tube of coil and line
Ring framework is parallel, and coil two is connected with single-chip microcomputer by base plate, coil and two compression helical form prolate bar epoxy resin
It is fixed on base plate, it is characterized in that capillary wall is by prolate bar, epoxy resin on skeleton and copper core three part having removed insullac
Composition.
Double micro-digital fluid piezometer the most according to claim 1, it is characterised in that the capillary tube of coil surface, one leads to
Crossing aperture and frame center hole on prolate bar to communicate, other end is blocked by epoxy resin in the outside of coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586517.4A CN103868640B (en) | 2012-12-16 | 2012-12-16 | Double micro-digital fluid piezometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586517.4A CN103868640B (en) | 2012-12-16 | 2012-12-16 | Double micro-digital fluid piezometers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103868640A CN103868640A (en) | 2014-06-18 |
| CN103868640B true CN103868640B (en) | 2016-12-28 |
Family
ID=50907414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210586517.4A Expired - Fee Related CN103868640B (en) | 2012-12-16 | 2012-12-16 | Double micro-digital fluid piezometers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103868640B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803720U (en) * | 2010-07-10 | 2011-04-20 | 张文昭 | Differential pressure type plane angle measuring instrument |
| CN201829328U (en) * | 2010-10-09 | 2011-05-11 | 德州天宇汽车电子有限公司 | Varnished low-frequency transformer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151132U (en) * | 1983-03-29 | 1984-10-09 | 明星電気株式会社 | pressure gauge |
| JPS62138733A (en) * | 1985-12-13 | 1987-06-22 | Mitsubishi Metal Corp | Method and device for measuring pressure in closed gap |
| JP2595829B2 (en) * | 1991-04-22 | 1997-04-02 | 株式会社日立製作所 | Differential pressure sensor and multifunction differential pressure sensor |
| JP2001013024A (en) * | 1999-04-27 | 2001-01-19 | Kawasumi Lab Inc | Pressure measuring apparatus for extracorporeal circulation and circuit for extracorporeal circulation |
-
2012
- 2012-12-16 CN CN201210586517.4A patent/CN103868640B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803720U (en) * | 2010-07-10 | 2011-04-20 | 张文昭 | Differential pressure type plane angle measuring instrument |
| CN201829328U (en) * | 2010-10-09 | 2011-05-11 | 德州天宇汽车电子有限公司 | Varnished low-frequency transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103868640A (en) | 2014-06-18 |
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| SE01 | Entry into force of request for substantive examination | ||
| 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: 20161228 Termination date: 20171216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |