CN205538094U - Multichannel pressure sensor calibration device based on air supply load - Google Patents
Multichannel pressure sensor calibration device based on air supply load Download PDFInfo
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- CN205538094U CN205538094U CN201620327869.1U CN201620327869U CN205538094U CN 205538094 U CN205538094 U CN 205538094U CN 201620327869 U CN201620327869 U CN 201620327869U CN 205538094 U CN205538094 U CN 205538094U
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Abstract
The utility model discloses a multichannel pressure sensor calibration device based on air supply load, carry pressure pipe gentleness source control ware including pressure vessel jar, seal head plate, gas, seal head plate is through the upper end fixed connection of removable bolt flange with the pressure vessel jar, both ends that gas carried the pressure pipe respectively with pressure vessel jar gentleness source control ware intercommunication, mark the pressure sensor setting in the pressure vessel jar, the bottom of pressure vessel jar is provided with the signal line hole, the signal line of being marked pressure sensor passes the signal line hole and is connected with seal head plate 0 and seal head plate 1. The utility model discloses make to be in the pressure vessel jar by mark pressure sensor, control the pressure in the container through the air supply controller, because of sensor and modulate circuit all in inclosed container, the damage of having avoided external electromagnetic interference and static to cause, the pressure vessel jar of high seal is to filling the stamping press of crossing that the pressure process of putting produced simultaneously, has certain pressure from steady effect, it is little that control and fluctuation are convenient for to pressure.
Description
Technical field
This utility model relates to a kind of caliberating device, particularly relates to a kind of multichannel pressure sensor calibrating device based on source of the gas load.
Background technology
In geotechnical centrifugal model test and earth and rockfill dam Monitoring on Earth Pressure, typically require use substantial amounts of soil pressure case, pore water pressure sensor under centrifugal action, carry out various parameter monitoring, owing to such geotechnique's pressure transducer is less due to size, it it is the most all flat structure.Conventional hydraulic pressure sensor calibrating device is typically made up of piston manometer, manually or electrically compression pump etc., and sensor and this device generally use standard thread interface mode, and the pressure transducer of flat structure cannot be demarcated by this mode.Some units use equidistant distributed oil gear to demarcate at present, manometer tube the figure of plane systematic arrangement such as will curve or be welded into, each equidistant position is installed the piecing devices of fixing flat structure sensor, sensor is fixed and seals, manometer tube other end cut-in pressure control system.This equidistant distributed oil gear can realize the pressure sensor calibrating of multichannel flat structure, but need to design numerous corresponding matched clamp, complex operation, easily leaks, and continuous production is poor, and efficiency is low.
Equidistant distributed oil gear easily leaks in pressure process；Surplus air in pipeline is difficult to discharge and in order to ensure enough pressure-bearings and sealing, the pressure-sensitive face of sensor is forced to apply certain pretightning force, easily causes transducer calibration error；Along with the number of sensors installed increases, its lead-in wire will become too fat to move and affect sensor to install and (sealing) regulation, it is impossible to ensureing consecutive production, loaded down with trivial details in operation, efficiency is low.
Its main cause caused is sealing and the pressure-bearing of sensor in equidistant distributed oil gear, mainly by a rubber o-ring and apply what a pretightning force realized, when the pressure applied has overshoot phenomenon, form local pressure at rubber o-ring too high, easily cause rubber o-ring avulsion damaged.In calibration process, rubber o-ring is easily generated be full of cracks through repeatedly immersion, the punching press of imposed load Medium Oil.The pressure loss is there is at distributed arrangement, pipe bent position and pipeline and sensor connector so that the pressure passing to pressure transducer is less than setting pressure, causes certain error owing to pressure pipeline uses.
Utility model content
The purpose of this utility model is that provides a kind of multichannel pressure sensor calibrating device based on source of the gas load to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of multichannel pressure sensor calibrating device based on source of the gas load, including base, pressure volume pot, head plate, airborne catheter pressure and source of the gas controller, the lower end of described pressure volume pot is fixing with described base to be connected, described head plate is connected by removable bolt flange is fixing with the upper end of described pressure volume pot, the two ends of described airborne catheter pressure connect with described pressure volume pot and described source of the gas controller respectively, it is arranged in described pressure volume pot by mark pressure transducer, the bottom of described pressure volume pot is provided with signal string holes, the described holding wire by mark pressure transducer is connected through described signal string holes with external power source and data collecting system.
Further, described caliberating device also includes 4 core conductor jointers, adapter fixed plate and 40 core sealed guide adapters, multiple described 4 core conductor jointers are installed in described adapter fixed plate, multiple described 4 core sockets by mark sensor are connected with described 4 core conductor jointers, described adapter fixed plate is fixedly installed in described pressure volume pot, in described 40 core sealed guide adapters are arranged on described signal string holes and it is tightly connected with described signal string holes, the holding wire of multiple described 4 core conductor jointers is connected with external power source and data collecting system by described 40 core sealed guide adapters.
Specifically, described adapter fixed plate is horizontally set in described pressure volume pot, and matches to merge with four positions being equally spaced of described pressure vessel top tank structure and be bolted to connection.
Further, described caliberating device also includes hand hole assembly, described hand hole assembly include sealing plate, screw rod, briquetting and nut, the middle part of described head plate is provided with elliptical hole, the lower end of described screw rod and described sealing plate upper side is fixing is connected, described sealing plate is arranged on the lower section of head plate, described briquetting and described nut and is all sleeved on the top of described screw rod, and described briquetting and described nut are successively set on the top of described head plate.
Preferably, described sealing plate is ellipse, and the length of its major axis and short axle is all higher than major axis and the length of short axle of described elliptical hole, and the diameter of described briquetting is more than the length of the short axle of described elliptical hole.
Specifically, between described head plate and described pressure volume pot, pressure resistant vessel polytetrafluoro sealing ring and rubber seal between described sealing plate and described head plate, it are respectively arranged with.
Specifically, described removable bolt flange includes that early warning nut and pretension bolt, multiple described removable bolt flanges are uniformly distributed along the axis of described pressure volume pot.
The beneficial effects of the utility model are:
A kind of multichannel pressure sensor calibrating device based on source of the gas load of this utility model makes to be marked pressure transducer and is in a limited pressure resistant vessel, the pressure in container is controlled by source of the gas controller, employing gas medium is pressure transmission medium, calibrated pressure transducer is without doing surface cleaning processing, because of sensor and modulate circuit all in airtight container, avoid outside electromagnetic interference and damage that electrostatic causes, the pressure volume pot of high leakproofness presses through journey generation and crosses stamping press charge and discharge simultaneously, there is certain pressure from steady effect, pressure is easy to control and fluctuate little.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multichannel pressure sensor calibrating device based on source of the gas load described in the utility model；
Fig. 2 is the structural representation of hand hole assembly described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
nullAs shown in Figure 1，A kind of multichannel pressure sensor calibrating device based on source of the gas load of this utility model，Including base 13、Pressure volume pot 10、4 core conductor jointers 8、Adapter fixed plate 9、40 core sealed guide adapters 11、Head plate 3、Airborne catheter pressure 12 and source of the gas controller，The lower end of pressure volume pot 10 is fixing with base 13 to be connected，Head plate 3 is connected by removable bolt flange is fixing with the upper end of pressure volume pot 10，The two ends of airborne catheter pressure 12 connect with pressure volume pot 10 and source of the gas controller respectively，It is arranged in pressure volume pot 10 by mark pressure transducer 7，The bottom of pressure volume pot 10 is provided with signal string holes，It is connected with external power source and data collecting system through signal string holes by the holding wire of mark pressure transducer 7，Multiple 4 core conductor jointers 8 are installed in adapter fixed plate 9，Multiple 4 core sockets by mark sensor and 4 core conductor jointers 8 connect，Adapter fixed plate 9 is fixedly installed in pressure volume pot 10，In 40 core sealed guide adapters 11 are arranged on signal string holes and it is tightly connected with signal string holes，The holding wire of multiple 4 core conductor jointers 8 is connected with external power source and data collecting system by 40 core sealed guide adapters 11，Adapter fixed plate 9 is horizontally set in pressure volume pot 10，And match to merge with four positions being equally spaced of pressure volume pot 10 inwall and be bolted to connection，Removable bolt flange includes early warning nut 2 and pretension bolt 6，Multiple removable bolt flanges are uniformly distributed along the axis of pressure volume pot 10，Pressure resistant vessel polytetrafluoro sealing ring 4 it is provided with between head plate 3 and pressure volume pot 10.
As shown in Figure 2, caliberating device also includes hand hole assembly 1, hand hole assembly 1 includes sealing plate 17, screw rod 16, briquetting 15 and nut 14, the middle part of head plate 3 is provided with elliptical hole, the lower end of screw rod 16 is fixing with the upper side of sealing plate 17 to be connected, sealing plate 17 is arranged on the lower section of head plate 3, briquetting 15 and nut 14 are all sleeved on the top of screw rod 16, and briquetting 15 and nut 14 are successively set on the top of head plate 3, sealing plate 17 is ellipse, and the length of its major axis and short axle is all higher than major axis and the length of short axle of elliptical hole, the diameter of briquetting 15 is more than the length of the short axle of elliptical hole, it is provided with rubber seal between sealing plate 17 and head plate 3.
The operation principle of a kind of multichannel pressure sensor calibrating device based on source of the gas load of this utility model is as follows:
Pressure volume pot 10 in this utility model uses diameter 200mm, high 300mm, the rustless steel cylindrical tube of thick 8mm, the upper end of pressure volume pot 10 is provided with the installation ring flat-plate of diameter 400mm, airborne catheter pressure 12 is external diameter 12mm, the stainless steel tube of internal diameter 8mm, and pressure volume pot 10 is connected with source of the gas controller by this stainless steel tube；The through hole that signal string holes is direct 40mm of the bottom of pressure volume pot 10, base 13 is diameter 400mm, the corrosion resistant plate of thickness 12mm, and have in corresponding position four diameter 20mm for the installing hole fixing with ground base.
Head plate 3 is diameter 400mm, the rustless steel flat cover of thick 25mm, by removable Bolted Flanged Connection, there is the polytetrafluoro sealing ring 4 of thick 3mm, diameter 250mm, wide 25mm between the installation ring flat-plate of head plate 3 and pressure volume pot 10, and the installation site of bolt flange is positioned at outside sealing ring.
nullWhen carrying out calibration experiment every time，First pressure volume pot 10 is opened，To be inserted in pressure volume pot 10 by mark pressure transducer 7，And its 4 core socket and 4 core conductor jointers 8 are connected，The most again pressure volume pot 10 is sealed，Then need at least open container and close container twice，And during boosting，Needing constantly tights a bolt successively makes hermetic devices compress and ensures to seal，In order to improve production efficiency，The most convenient、Safety is the most laborsaving，Reduce pressure volume pot 10 and the opening times of head plate 3 connection，Major axis 125mm is had in the center of head plate 3、The elliptical hole of short axle 100mm，Then can directly will be installed to 4 core conductor jointers 8 through this through hole by mark pressure transducer 7，In the sealing being completed pressure volume pot 10 by hand hole assembly 1，Pressure within pressure volume pot 10 is intrinsic pressure，Use hand hole assembly 1 device，Avoiding constantly tights a bolt in boost process makes potted component compress and ensures the repetitive operation sealed，Container inner pressure is the biggest，Sealing plate 17 is the biggest by active force upwards，Act on the rubber seal stress on hand hole assembly 1 the biggest，Its sealing property is the strongest，Only need to this device be put in container along elliptical aperture and centering good position during operation，Tighten by hand the nut 14 on hand hole assembly 1 device，Sealing plate 17 and briquetting 15 is made to be clamped on head plate 3.
This utility model has the advantage that
Enough confined spaces are had in pressure volume pot 10, during inflation/deflation, the stamping press of crossing produced has certain capacity of self-regulation, make the equalization of pressure suffered in limited space by marking pressure transducer 7, simultaneously by mark pressure transducer 7 and signal conditioning circuit thereof all in airtight container, it is to avoid the interference to it of the outside highfield.
To be connected by the holding wire of mark pressure transducer 7 by multiple 4 core conductor jointers 8, it is to avoid proceeding multiple timing signal by mark pressure transducer 7, its lead-in wire will become too fat to move and affect sensor install and seal regulation.
It is intrinsic pressure for container inner sensor with external data collection, power supply connected mode and container pressure-bearing mode, 40 core sealed guide adapter 11 and installation position, mode and sealings thereof are specifically designed it, make operator's simple operation, safety, the useful space of container is fully utilized, and expands the shipped quantity of sensor further.
In container top centre, it is designed with hand hole assembly 1 so that be simplified by the mark installation of pressure transducer 7, dismounting mode, convenient, improves work efficiency, decrease pressure volume pot 10 and the opening times of head plate 3 connection, extend the service life of container.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology deformation made according to the technical solution of the utility model, within each falling within protection domain of the present utility model.
Claims (7)
1. a multichannel pressure sensor calibrating device based on source of the gas load, it is characterised in that: include base,
Pressure volume pot, head plate, airborne catheter pressure and source of the gas controller, the lower end of described pressure volume pot with
Described base is fixing to be connected, and described head plate is by the upper end of removable bolt flange with described pressure volume pot
Fixing connect, the two ends of described airborne catheter pressure respectively with described pressure volume pot and described source of the gas controller
Connection, is arranged in described pressure volume pot by mark pressure transducer, and the bottom of described pressure volume pot is arranged
Having signal string holes, the described holding wire by mark pressure transducer is through described signal string holes and external power source sum
Connect according to acquisition system.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 1,
It is characterized in that: also include 4 core conductor jointers, adapter fixed plate and 40 core sealed guide adapters,
Multiple described 4 core conductor jointers are installed in described adapter fixed plate, multiple described by mark sensor
4 core sockets be connected with described 4 core conductor jointers, described adapter fixed plate is fixedly installed on described pressure
In force container tank, described 40 core sealed guide adapters be arranged in described signal string holes and with described holding wire
Hole is tightly connected, and the holding wire of multiple described 4 core conductor jointers passes through described 40 core sealed guide adapters
It is connected with external power source and data collecting system.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 2,
It is characterized in that: described adapter fixed plate is horizontally set in described pressure volume pot, and with described pressure
The merging that matches of four positions being equally spaced of container tank inwall is bolted to connection.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 2,
It is characterized in that: also include hand hole assembly, described hand hole assembly include sealing plate, screw rod, briquetting and nut,
The middle part of described head plate is provided with elliptical hole, the lower end of described screw rod and described sealing plate upper side solid
Fixed connection, described sealing plate is arranged on the lower section of head plate, described briquetting and described nut and is all sleeved on described
The top of screw rod, and described briquetting and described nut be successively set on the top of described head plate.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 4,
It is characterized in that: described sealing plate is ellipse, and the length of its major axis and short axle is all higher than described ellipse and leads to
The major axis in hole and the length of short axle, the diameter of described briquetting is more than the length of the short axle of described elliptical hole.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 4,
It is characterized in that: between described head plate and described pressure volume pot, described sealing plate with described head plate it
Between be respectively arranged with pressure resistant vessel polytetrafluoro sealing ring and rubber seal.
A kind of multichannel pressure sensor calibrating device based on source of the gas load the most according to claim 1,
It is characterized in that: described removable bolt flange includes early warning nut and pretension bolt, multiple described removable
Bolt flange is uniformly distributed along the axis of described pressure volume pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327869.1U CN205538094U (en) | 2016-04-18 | 2016-04-18 | Multichannel pressure sensor calibration device based on air supply load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327869.1U CN205538094U (en) | 2016-04-18 | 2016-04-18 | Multichannel pressure sensor calibration device based on air supply load |
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| Publication Number | Publication Date |
|---|---|
| CN205538094U true CN205538094U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620327869.1U Expired - Fee Related CN205538094U (en) | 2016-04-18 | 2016-04-18 | Multichannel pressure sensor calibration device based on air supply load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784268A (en) * | 2016-04-18 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Multi-channel pressure sensor calibration device based on gas source load |
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2016
- 2016-04-18 CN CN201620327869.1U patent/CN205538094U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784268A (en) * | 2016-04-18 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Multi-channel pressure sensor calibration device based on gas source load |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190418 |