CN206248274U - A kind of marine pressure sensor calibration calibration attachment means - Google Patents
A kind of marine pressure sensor calibration calibration attachment means Download PDFInfo
- Publication number
- CN206248274U CN206248274U CN201621365292.XU CN201621365292U CN206248274U CN 206248274 U CN206248274 U CN 206248274U CN 201621365292 U CN201621365292 U CN 201621365292U CN 206248274 U CN206248274 U CN 206248274U
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- China
- Prior art keywords
- pressure
- plunger
- resistant cabin
- attachment means
- end cap
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Abstract
The utility model discloses a kind of marine pressure sensor calibration calibration attachment means, including pressure-resistant cabin, and end cap；Plunger bushing is provided with the pore structure circular long of the pressure-resistant cabin, the plunger bushing internal slide is provided with plunger, and the plunger bushing loses sealing with plunger no pressure；The outer end of the plunger bushing is provided with high resiliency isolation diaphragm, and lubricating oil is provided between the plunger and the isolation diaphragm；The end cap is connected with pressure-resistant cabin docking；The pressure-resistant cabin cylindrical end is logical to be connected with piston manometer, and the cylindrical end of the end cap is connected by thread protrusion with pressurized tank.The utility model realizes the no pressure loss connection of piston manometer and pressurized tank, farthest simulate the true applied environment of pressure sensor, realize the overall calibration calibration of pressure sensor, the measurement error that pressure sensor local deformation causes is eliminated, the certainty of measurement of pressure sensor is improve.
Description
Technical field
The utility model belongs to ocean monitor instrument field, specifically, is related to a kind of marine pressure sensor calibration school
Quasi- attachment means.
Background technology
Space coordinates of the seawater pressure value equivalent to ocean environment parameter observation instrument in the seawater, pressure measxurement it is accurate
Property be carry out comparing and detection key element.Pressure sensor, using very extensive, can be used for tsunami prison in terms of ocean
Supervise the oceans such as survey, water-level gauge, tide register, thermohaline deep investigation instrument, and buoy, subsurface buoy, underwater movable platform and submarine observation network
Survey sensor integration system.With the development of ocean observation technology, the requirement more and more higher to Pressure Sensor Precision.
Pressure sensor due to component and measuring circuit are aging, can make measurement number in use for some time
According to drift is produced, measurement error is produced.In order to ensure that certainty of measurement needs to carry out calibration school in laboratory to pressure sensor
It is accurate.
At present, it is usually that pressure sensor is integrated into enterprising enforcement of instrument to use when pressure sensor is used in ocean
, such as conventional oceanographic instrumentation CTD sensors.The calibration calibration method of pressure sensor is as shown in figure 1, be to set on sensor 10
In respect of special pressure calibration interface, pressure sensor 11 and high accuracy piston manometer 13 are connected by pressure adapter 12
Getting up carries out pressure calibration, and the pressure value of high accuracy piston manometer 13 is used as pressure criteria value.There was only pressure sensing during calibration
The diaphragm portion of device 11 is, in pressure state, pressure to be passed by the original value of multimetering pressure sensor 11 and pressure criteria value
The experiment curv of sensor is fitted again, obtains calibration calibration factor, so as to reach the purpose of the calibration of pressure sensor 11.
Oceanographic instrumentation at sea using when be overall instrument be in pressure environment in, especially in big pressure environment, pressure
The pressure distortion of connection member can influence the certainty of measurement of pressure sensor around sensor, cause measurement error.If can
Whole instrument is carried out calibration calibration in being in pressure environment, can be very good to solve the above problems.
At present, domestic pressure calibration calibration is provided using pressure criteria value by high accuracy piston manometer, and instrument enters
Row integral pressure is pressure-resistant, and experiment is carried out in pressurized tank.Realize that whole instrument carries out calibration calibration in being in pressure environment
Needs couple together high accuracy piston manometer and pressurized tank.But, piston manometer pressure medium is oil, in pressurized tank
Medium is water, and both are unable to directly contact, can otherwise pollute whole pressurized tank and then Marine Pollution instrument, therefore at present cannot be real
The calibration calibration of pressure sensor integral pressure is realized in the connection of existing piston manometer and pressurized tank.
The content of the invention
Exist in true applied environment after the calibration of laboratory internal calibration to solve current ocean pressure sensor
The problem of measurement error, the utility model provides a kind of piston manometer and pressurized tank attachment means, its object is to pass through
Attachment means, realize the no pressure loss connection of piston manometer and pressurized tank, realize the integral pressure environment of pressure sensor
Calibration calibration, farthest simulates true applied environment to ensure the accuracy of pressure measxurement.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of marine pressure sensor calibration calibration attachment means, including one end is the cylindrical, another of threaded projection
It is the pressure-resistant cabin of circular pore structure long to hold, and end cap；
Plunger bushing is provided with the pore structure circular long of the pressure-resistant cabin, the plunger bushing internal slide is provided with plunger, described
Plunger bushing loses sealing with plunger no pressure；The outer end of the plunger bushing is provided with high resiliency isolation diaphragm, the plunger with it is described
Lubricating oil is provided between isolation diaphragm；
Described end cap one end is the cylinder for having thread protrusion, and the other end is borehole structure, the borehole structure of the end cap
Hold and be connected with the pore structure end circular long docking of pressure-resistant cabin；
The pressure-resistant cabin cylindrical end is connected by thread protrusion with the connecting tube of piston manometer, and interconnect to
The inner space of the plunger bushing；The cylindrical end of the end cap is connected by thread protrusion with the connecting tube of pressurized tank, and
Interconnect to the inner space of end cap borehole structure.
Further, the pore structure end circular long of the pressure-resistant cabin is provided with recess, the recess with end cap joint
Bottom it is concordant with the outer end of the plunger bushing, the borehole structure end of the end cap is provided with protrusion corresponding with the recess
Portion, the recess is docked with the protuberance and is attached by bolt.
Further, the isolation diaphragm is arranged on the outer end of the plunger bushing and the bottom of the recess, described
End cap is sealed by O-ring with pressure-resistant cabin and isolation diaphragm.
Further, sealed by O-ring between the plunger bushing and pressure-resistant cabin.
Further, the pressure-resistant cabin is provided with first communicated with the inner space of the plunger bushing close to cylindrical end and puts
Gas port, first gas vent is provided with the first deflation and blocks up, and the inner space of the plunger bushing is located at the plunger away from barrier film
The side of piece.
Further, first deflation is stifled is sealed between the pressure-resistant cabin by O-ring.
Further, the end cap is provided with the second gas vent communicated with its circular hole inner space, institute close to cylindrical end
State the second gas vent be provided with the second deflation block up.
Further, second deflation is stifled is sealed between the pressure-resistant cabin by O-ring.
Further, the side of the neighbouring pressure-resistant cabin cylindrical end of the circular elongated hole of the pressure-resistant cabin is provided with groove, described
Back-moving spring is provided with groove.
Further, the plunger correspondence back-moving spring is provided with cylindrical type projection.
Relative to prior art, marine pressure sensor calibration calibration attachment means described in the utility model have following
Advantage：
The utility model calibrates calibration attachment means by designing marine pressure sensor, realizes piston manometer and pressure
The no pressure loss connection of tank, farthest simulates the true applied environment of pressure sensor, realizes pressure sensor
Overall calibration calibration, eliminate the measurement error that pressure sensor local deformation causes, improve the measurement of pressure sensor
Precision.
Brief description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is that schematic diagram is calibrated in pressure sensor calibration in the prior art；
Fig. 2 is the structural representation of the utility model embodiment；
Fig. 3 uses structural representation for the connection of the utility model embodiment.
Wherein：
1st, pressure-resistant cabin；2nd, end cap；
3rd, plunger bushing；4th, plunger；
5th, isolation diaphragm；6th, lubricating oil；
7th, the first deflation is stifled；8th, the second deflation is stifled；
9th, back-moving spring；10th, sensor；
11st, pressure sensor；12nd, pressure adapter；
13rd, piston manometer；14th, pressurized tank；
15th, force (forcing) pump.
Specific embodiment
It should be noted that in the case where not conflicting, feature in embodiment of the present utility model and embodiment can be with
It is mutually combined.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Fig. 2 a kind of marine pressure sensor calibration calibration attachment means that the utility model is related to.Including pressure-resistant
Cabin 1, first deflates blocks up 7, plunger bushing 3, plunger 4, lubricating oil 6, the deflation of isolation diaphragm 5, second stifled 8, end cap 2 and back-moving spring 9
Composition.Pressure-resistant cabin 1 is the structure of circular hole for there are the cylinder of thread protrusion, the other end in one end, and circular hole top is fluted, pressure-resistant cabin
1 is used to bear the pressure of pressure system and the connection with piston manometer 13；First deflates blocks up 7 has installed in pressure-resistant cabin 1
Sealed by O-ring between the top at thread protrusion end, with pressure-resistant cabin 1, for excluding the air inside plunger bushing 3；Reset bullet
Spring 9 is arranged in the groove of the inner tip of pressure-resistant cabin 1, for realizing the reset of plunger 4；Plunger bushing 3 is arranged on pressure-resistant cabin 1
In borehole structure, the inside unusual light of plunger bushing 3 is supported the use with plunger 4, close with the no pressure loss of plunger 4 for realizing
Envelope, is sealed between plunger bushing 3 and pressure-resistant cabin 1 by O-ring；Plunger 4 is arranged on inside plunger bushing 3, and there is cylindrical type one end
Projection, the outer surface unusual light of plunger 4, supports the use with plunger bushing 3, for realizing the pressure of piston manometer 13 and pressurized tank 14
Power is isolated；Isolation diaphragm 5 makes for elastomeric elastomeric material, installed in the circular hole in the outer end of plunger bushing 3 and pressure-resistant cabin 1
End is internal, for realizing the water-oil separating of attachment means；Lubricating oil 6 is located in the middle of plunger bushing 3 and isolation diaphragm 5, full of plunger 4
With the space between isolation diaphragm 5, the half volume of the inner space of plunger bushing 3 is accounted for, for realizing plunger bushing 3 and plunger 4
Lubrication and sealing；End cap 2 has the cylindrical structural of thread protrusion for one end, and the other end is borehole structure, and end cap 2 is arranged on pressure-resistant
The borehole structure end in cabin 1, is sealed with pressure-resistant cabin 1 and isolation diaphragm 5 by O-ring, is attached by bolt, is used for
Compress isolation diaphragm 5 and connection pressurized tank 14；Second deflates stifled 8 installed in top of the end cap 2 with thread protrusion end, with end
Sealed by O-ring between lid 2, for excluding the air inside end cap 2.
Pressure sensor calibration involved by the utility model calibrates attachment means when in use, first with pressurized tank 14
Connecting tube is connected with the thread protrusion on attachment means pressure-resistant cabin 1, the connecting tube with high accuracy piston manometer 13 be connected
Thread protrusion on device end cap 2 is connected.After connection is finished, pressurized tank 14 is opened, calibration instrument is put into pressurized tank 14
Inside, covers pressurized tank 14 after then filling it up with running water inside pressurized tank 14, pressurized tank 14 and force (forcing) pump 15 are passed through into pipeline
Connection.The second deflation stifled 8 is opened, starts force (forcing) pump 15, after the air inside attachment means end cap 2 is excluded, close force (forcing) pump
15, close the second deflation stifled 8；The first deflation stifled 7 is opened, operation piston manometer 13 excludes air in attachment means pressure-resistant cabin 1
The first deflation stifled 7 is closed afterwards；
During the calibration calibration of pressure sensor 11, the internal pressure of pressurized tank 14 is forced into than demarcating by force (forcing) pump 15 first
The low 0.5MPa of pressure value, the plunger 4 of attachment means can move to the top of plunger bushing 3 under the effect of the internal pressure of pressurized tank 14,
Attachment means pressure-resistant cabin 1 is held out against, isolation diaphragm 5 and the lubricating oil 6 of attachment means are moved with plunger 4 to one end.Then operation is lived
Plug pressure gauge 13 pressurizes to pressurized tank 14, and the pressure with piston manometer end rises, when the power at piston manometer end is more than pressure
During the power at power tank end, the plunger 4 of attachment means can be moved to the other end of plunger bushing 3, so as to drive lubricating oil 6 and isolation diaphragm
5 movements.After piston manometer 13 is equal with the pressure inside pressurized tank 14, two ends reach poised state, and plunger 4 stops moving
It is dynamic.After a pressure calibration value demarcation calibration is completed, first by the pressure release of piston manometer 13, the pressure of piston manometer 13 is
After zero, then operate the force (forcing) pump 15 to carry out pressure release, complete a pressure calibration calibration for point.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (10)
1. attachment means are calibrated in a kind of marine pressure sensor calibration, it is characterised in that including the circle that one end is threaded projection
Cylindricality, the other end are the pressure-resistant cabin of circular pore structure long, and end cap；
Plunger bushing is provided with the pore structure circular long of the pressure-resistant cabin, the plunger bushing internal slide is provided with plunger, the plunger
Set loses sealing with plunger no pressure；The outer end of the plunger bushing is provided with high resiliency isolation diaphragm, and the plunger is isolated with described
Lubricating oil is provided between diaphragm；
Described end cap one end is the cylinder for having thread protrusion, and the other end is borehole structure, the borehole structure end of the end cap with
The pore structure end circular long docking connection of pressure-resistant cabin；
The pressure-resistant cabin cylindrical end is connected by thread protrusion with the connecting tube of piston manometer, and is interconnected to described
The inner space of plunger bushing；The cylindrical end of the end cap is connected by thread protrusion with the connecting tube of pressurized tank, and mutually
It is communicated to the inner space of end cap borehole structure.
2. attachment means according to claim 1, it is characterised in that the pore structure end circular long of the pressure-resistant cabin and end cap
Joint is provided with recess, and the bottom of the recess is concordant with the outer end of the plunger bushing, the borehole structure end of the end cap
Protuberance corresponding with the recess is provided with, the recess is docked with the protuberance and is attached by bolt.
3. attachment means according to claim 2, it is characterised in that the isolation diaphragm is arranged on the outer of the plunger bushing
The bottom with the recess is held, the end cap is sealed by O-ring with pressure-resistant cabin and isolation diaphragm.
4. attachment means according to claim 1, it is characterised in that pass through O-ring between the plunger bushing and pressure-resistant cabin
Sealed.
5. attachment means according to claim 1, it is characterised in that the pressure-resistant cabin close to cylindrical end be provided with it is described
The first gas vent that the inner space of plunger bushing communicates, first gas vent be provided with the first deflation block up, the plunger bushing it is interior
Portion is spatially located at side of the plunger away from isolation diaphragm.
6. attachment means according to claim 5, it is characterised in that described first deflates stifled leads between the pressure-resistant cabin
Cross O-ring sealing.
7. attachment means according to claim 1, it is characterised in that the end cap is provided with and its circular hole close to cylindrical end
The second gas vent that inner space communicates, second gas vent is provided with the second deflation and blocks up.
8. attachment means according to claim 7, it is characterised in that described second deflates stifled leads between the pressure-resistant cabin
Cross O-ring sealing.
9. attachment means according to claim 1, it is characterised in that the neighbouring pressure-resistant cabin of the circular elongated hole of the pressure-resistant cabin
The side of cylindrical end is provided with groove, and back-moving spring is provided with the groove.
10. attachment means according to claim 9, it is characterised in that the plunger correspondence back-moving spring is provided with cylindrical type
It is raised.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365292.XU CN206248274U (en) | 2016-12-13 | 2016-12-13 | A kind of marine pressure sensor calibration calibration attachment means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365292.XU CN206248274U (en) | 2016-12-13 | 2016-12-13 | A kind of marine pressure sensor calibration calibration attachment means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248274U true CN206248274U (en) | 2017-06-13 |
Family
ID=59006760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621365292.XU Withdrawn - After Issue CN206248274U (en) | 2016-12-13 | 2016-12-13 | A kind of marine pressure sensor calibration calibration attachment means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206248274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644264A (en) * | 2016-12-13 | 2017-05-10 | 国家海洋技术中心 | Calibration connection device for ocean pressure sensor |
-
2016
- 2016-12-13 CN CN201621365292.XU patent/CN206248274U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644264A (en) * | 2016-12-13 | 2017-05-10 | 国家海洋技术中心 | Calibration connection device for ocean pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20220412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20220412 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |