CN106768183A - Two point form liquid level sensor for measuring Rocket tank volume loading liquid level - Google Patents
Two point form liquid level sensor for measuring Rocket tank volume loading liquid level Download PDFInfo
- Publication number
- CN106768183A CN106768183A CN201611088755.7A CN201611088755A CN106768183A CN 106768183 A CN106768183 A CN 106768183A CN 201611088755 A CN201611088755 A CN 201611088755A CN 106768183 A CN106768183 A CN 106768183A
- Authority
- CN
- China
- Prior art keywords
- liquid
- liquid level
- level
- sensor
- level probe
- Prior art date
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 140
- 239000000523 sample Substances 0.000 claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 239000012736 aqueous medium Substances 0.000 claims abstract description 14
- 230000006870 function Effects 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000008447 perception Effects 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
Abstract
The invention provides a kind of two point form liquid level sensor for measuring Rocket tank volume loading liquid level, the present invention utilizes the change of characteristic perception loading liquid level of the photosignal in aqueous medium by liquid-level probe component, and liquid-level probe component is connected by fastener and is arranged in sensor body；Protective cover is connected by screw in sensor body, for protecting liquid-level probe component；CA cable assembly is connected the signal output function of realizing sensor with waterproof sealing socket, working media of the invention is water, it is mainly used to measure the important liquid level point that Rocket tank fills volume after manufacture, for its volumetric measurement system provides liquid level signal, characteristic of the photosignal in aqueous medium can be utilized so as to obtain the signal in servicing fluids site, this device for the measurement of Rocket tank liquid level filling point have good machinability, reliable operation, certainty of measurement it is high, it is easy to use the features such as.
Description
Technical field
The present invention relates to a kind of two point form liquid level sensor for measuring Rocket tank volume loading liquid level.
Background technology
Rocket tank volumetric measurement is an indispensable link in the production of liquid propellant rocket tank.Tank volume
The precision of numerical value directly affects the filling precision of rocket and the accuracy of telemetry, directly affects carrying capacity, the system of rocket
Lead precision.
The working media that the loading liquid level measurement of Rocket tank volume is used is water, and typically conventional capacitance type liquid level is passed
Sensor is not suitable for the level gauging of aqueous medium, and low precision, reliability is not high.
The content of the invention
It is an object of the invention to provide a kind of two point form level sensing for measuring Rocket tank volume loading liquid level
Device, can utilize characteristic of the photosignal in aqueous medium so as to obtain the signal in servicing fluids site.
To solve the above problems, the present invention provides a kind of two point form liquid level for measuring Rocket tank volume loading liquid level
Sensor, including：
Including CA cable assembly 1, waterproof sealing socket 2, sensor body 3, liquid-level probe component 4, protective cover 5, screw 6 and fastening
Part 10, wherein,
The change of characteristic perception loading liquid level of the liquid-level probe component 4 using photosignal in aqueous medium, liquid-level probe component 4
Connected by fastener 10 and be arranged in sensor body 3；
Protective cover 5 is connected in sensor body 3 by screw 6, for protecting liquid-level probe component 4；
CA cable assembly 1 is connected the signal output function of realizing sensor with waterproof sealing socket 2.
Further, in the above-mentioned two point form liquid level sensor for measuring Rocket tank volume loading liquid level, also wrap
The liquid-level probe 9 being connected with the CA cable assembly 1 is included, the liquid-level probe 9 is realized using the principle that infrared light electric-type is popped one's head in
The perception of liquid level signal, liquid-level probe 9 is reached as the liquid level signal that liquid level signal trigger point will be perceived by CA cable assembly 1
Volumetric measurement control system.
Further, in the above-mentioned two point form liquid level sensor for measuring Rocket tank volume loading liquid level, also wrap
Include upper filler 11, middle filler 12, lower filler 13, the bushing 14, sealing ring being placed sequentially in from top to bottom around liquid-level probe 9
15。
Further, in the above-mentioned two point form liquid level sensor for measuring Rocket tank volume loading liquid level, also wrap
Flow deflector 8 and flow deflector screw 7 are included, wherein, flow deflector 8 is arranged at the lower section of liquid-level probe 9, and the flow deflector 8 crosses flow deflector
Screw 7 is fixed in sensor body 3.
Further, it is described in the above-mentioned two point form liquid level sensor for measuring Rocket tank volume loading liquid level
Sensor body 3 is welded by flange 16, connecting seat 17, mounting seat 18, pipe 19, end socket 20 respectively, wherein,
The flange 16 is used to connect waterproof sealing socket 2；
Mounting seat 18 is arranged on connecting seat 17, and mounting seat 18 is used to install two liquid-level probe components 4；
The external cylindrical surface of pipe 19 processing mounting groove is used for the installation of sensor.
Compared with prior art, characteristic sense of the present invention by liquid-level probe component 4 using photosignal in aqueous medium
Know the change of loading liquid level, liquid-level probe component 4 is connected by fastener 10 and is arranged in sensor body 3；Protective cover 5 passes through
Screw 6 is connected in sensor body 3, for protecting liquid-level probe component 4；CA cable assembly 1 is connected reality with waterproof sealing socket 2
The signal output function of existing sensor.Here, two point form liquid level sensor for measuring Rocket tank volume loading liquid level
Working media is water, is mainly used to measure the important liquid level point that Rocket tank fills volume after manufacture, is its volumetric measurement system
System provides liquid level signal, can utilize characteristic of the photosignal in aqueous medium so as to obtain the signal in servicing fluids site, this
Have good machinability, reliable operation, certainty of measurement high, easy to use for the device of Rocket tank liquid level filling point measurement etc.
Feature.
Brief description of the drawings
Fig. 1 is the two point form liquid level sensor for measuring Rocket tank volume loading liquid level of one embodiment of the invention
Structural representation；
Fig. 2 is the structure of the two point form liquid level sensor for measuring Rocket tank volume loading liquid level of one embodiment of the invention
Profile；
Fig. 3 is the liquid-level probe component enlarged diagram of one embodiment of the invention；
Fig. 4 is the infrared electro liquid-level probe fundamental diagram of one embodiment of the invention；
The sensor body structural representation of Fig. 5 one embodiment of the invention；
In figure：1st, CA cable assembly, 2, waterproof sealing socket, 3, sensor body, 4, liquid-level probe component, 5, protective cover, 6, spiral shell
Nail, 7, flow deflector screw, 8, flow deflector, 9, liquid-level probe, 10, fastener, 11, upper filler, 12, middle filler, 13, lower filler,
14th, bushing, 15, sealing ring, 16, flange, 17, connecting seat, 18, mounting seat, 19, pipe, 20, end socket.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
As illustrated in fig. 1 and 2, the present invention provides a kind of two point form liquid level for measuring Rocket tank volume loading liquid level and passes
Sensor, including CA cable assembly 1, waterproof sealing socket 2, sensor body 3, liquid-level probe component 4, protective cover 5, screw 6 and tight
Firmware 10, wherein,
The change of characteristic perception loading liquid level of the liquid-level probe component 4 using photosignal in aqueous medium, liquid-level probe component 4
Connected by fastener 10 and be arranged in sensor body 3；
Protective cover 5 is connected in sensor body 3 by screw 6, for protecting liquid-level probe component 4；
CA cable assembly 1 is connected the signal output function of realizing sensor with waterproof sealing socket 2.Here, for measuring rocket storage
The working media of the two point form liquid level sensor of case volume loading liquid level is water, is mainly used to measurement Rocket tank and adds after manufacture
The important liquid level point of volume is noted, for its volumetric measurement system provides liquid level signal, can be using photosignal in aqueous medium
So as to obtain the signal in servicing fluids site, this device for the measurement of Rocket tank liquid level filling point has machinability to characteristic
Good, reliable operation, certainty of measurement be high, it is easy to use the features such as.
In one embodiment of the invention, as shown in figure 3, the above-mentioned two point form liquid for measuring Rocket tank volume loading liquid level
Level sensor, also including the liquid-level probe 9 being connected with the CA cable assembly 1, the liquid-level probe 9 is using infrared light electric-type probe
Principle realize the perception of liquid level signal, liquid-level probe 9 passes through as the liquid level signal that liquid level signal trigger point will be perceived
CA cable assembly 1 reaches volumetric measurement control system.Here, the present invention can using characteristic of the photosignal in aqueous medium so as to
The signal in servicing fluids sites is obtained, the characteristics of possess high precision, simple structure, system reliability high.
As shown in figure 3, in one embodiment of the invention, the above-mentioned two point form liquid for measuring Rocket tank volume loading liquid level
Level sensor, also including be placed sequentially in from top to bottom around liquid-level probe 9 upper filler 11, middle filler 12, lower filler 13,
Bushing 14, sealing ring 15, here, the sealing to ensure sensor, prevents water from entering sensor internal, respectively in liquid-level probe
Upper filler 11, middle filler 12, lower filler 13, bushing 14, sealing ring 15 are placed around 9.
In one embodiment of the invention, as shown in figure 3, the above-mentioned two point form liquid for measuring Rocket tank volume loading liquid level
Level sensor, also including flow deflector 8 and flow deflector screw 7, wherein, flow deflector 8 is arranged at the lower section of liquid-level probe 9, described to lead
Flow 8 is crossed flow deflector screw 7 and is fixed in sensor body 3.It is not detained in being disturbed on liquid-level probe 9 to ensure water droplet herein
Level gauging, sets flow deflector 8 below liquid-level probe 9, and it passes through flow deflector screw 7 and is fixed in sensor body 3.
In one embodiment of the invention, as shown in figure 5, the sensor body 3 is respectively by flange 16, connecting seat 17, installation
Seat 18, pipe 19, end socket 20 are welded, wherein,
The flange 16 is used to connect waterproof sealing socket 2；
Mounting seat 18 is arranged on connecting seat 17, and mounting seat 18 is used to install two liquid-level probe components 4；
The external cylindrical surface of pipe 19 processing mounting groove be used for sensor installation, here, sensor body 3 possess simple structure can
By, sealing performance is good the characteristics of.
Important component of the invention is introduced separately below, including liquid-level probe component 4 and sensor body 3 etc.
Two parts.
With reference to shown in accompanying drawing 3, liquid-level probe component 4 by flow deflector screw 7, flow deflector 8, liquid-level probe 9, fastener 10,
Upper filler 11, middle filler 12, lower filler 13, bushing 14, sealing ring 15 are constituted.The function of liquid-level probe component 4 is to utilize light
Characteristic of the electric signal in aqueous medium is so as to obtain the signal in servicing fluids site.The course of work is：When tank loading liquid level is reached
During liquid-level probe 9, it reaches volumetric measurement control as the liquid level signal that liquid level signal trigger point will be perceived by CA cable assembly 1
System processed.To ensure the sealing of sensor, prevent water from entering sensor internal, placed around liquid-level probe 9 respectively
Filler 11, middle filler 12, lower filler 13, bushing 14, sealing ring 15, assemble sequence be respectively from top to bottom upper filler 11, in fill out
, then be placed on fastener 10 on upper filler 11 and mounting seat 18 is screwed onto by material 12, lower filler 13, bushing 14, sealing ring 15
On.In addition, to ensure that water droplet is not detained in disturbing level gauging on liquid-level probe 9, flow deflector 8 is set below probe, its
It is fixed in sensor body 3 by flow deflector screw 7.
With reference to shown in accompanying drawing 4, liquid-level probe 9 is integrated with the function such as infrared light supply, optical system, photosensitive, amplification, power amplifier,
Its operation principle is that IR is reflected on faceted pebble, and photosensitive part is not in the prism stubs of liquid-level probe 9 are in liquid medium
By illumination, OC cut-off, output voltage is+5V；When liquid level is exposed in termination to be in air, IR total reflection is photosensitive
Illumination is received in part, and OC turns on, and output voltage is 0V.By the change of output voltage so as to perceive the change of liquid level.
With reference to shown in accompanying drawing 5, sensor body 3 is CA cable assembly 1, waterproof sealing socket 2, liquid-level probe component 4, protection
Cover 5 installation pedestal, possess the characteristics of simple and reliable for structure, sealing performance is good, respectively by flange 16, connecting seat 17,
Mounting seat 18, pipe 19, end socket 20 are welded.Wherein, flange 16 is used to connect waterproof sealing socket 2, and mounting seat 18 is used for
Two liquid-level probe components 4 are installed, the external cylindrical surface of pipe 19 processing mounting groove is used for the installation of sensor.
In sum, characteristic perception of the present invention by liquid-level probe component 4 using photosignal in aqueous medium is filled
The change of liquid level, liquid-level probe component 4 is connected by fastener 10 and is arranged in sensor body 3；Protective cover 5 passes through screw 6
It is connected in sensor body 3, for protecting liquid-level probe component 4；CA cable assembly 1 is connected realization with waterproof sealing socket 2 and passes
The signal output function of sensor.Here, the work of the two point form liquid level sensor for measuring Rocket tank volume loading liquid level
Medium is water, is mainly used to measure the important liquid level point that Rocket tank fills volume after manufacture, is that its volumetric measurement system is carried
For liquid level signal, characteristic of the photosignal in aqueous medium can be utilized so as to obtain the signal in servicing fluids site, it is this to be used for
The device of the Rocket tank liquid level filling point measurement spy such as have good machinability, reliable operation, certainty of measurement high, easy to use
Point.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from spirit of the invention to invention
And scope.So, if these modifications of the invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including including these changes and modification.
Claims (5)
1. a kind of two point form liquid level sensor for measuring Rocket tank volume loading liquid level, it is characterised in that including cable
Component（1）, waterproof sealing socket（2）, sensor body（3）, liquid-level probe component（4）, protective cover（5）, screw（6）And fastening
Part（10）, wherein,
Liquid-level probe component（4）The change of the characteristic perception loading liquid level using photosignal in aqueous medium, liquid-level probe group
Part（4）By fastener（10）Connection is arranged on sensor body（3）On；
Protective cover（5）By screw（6）It is connected to sensor body（3）On, for protecting liquid-level probe component（4）；
CA cable assembly（1）With waterproof sealing socket（2）The signal output function of sensor is realized in connection.
2. it is used to measure the two point form liquid level sensor of Rocket tank volume loading liquid level, its feature as claimed in claim 1
Be, also including with the CA cable assembly（1）The liquid-level probe of connection（9）, the liquid-level probe（9）Visited using infrared light electric-type
The principle of head realizes the perception of liquid level signal, liquid-level probe（9）As the liquid level signal that liquid level signal trigger point will be perceived
By CA cable assembly（1）Reach volumetric measurement control system.
3. it is used to measure the two point form liquid level sensor of Rocket tank volume loading liquid level, its feature as claimed in claim 2
It is, also including being placed sequentially in liquid-level probe from top to bottom（9）Around upper filler（11）, middle filler（12）, lower filler
（13）, bushing（14）, sealing ring（15）.
4. it is used to measure the two point form liquid level sensor of Rocket tank volume loading liquid level, its feature as claimed in claim 2
It is, also including flow deflector（8）With flow deflector screw（7）, wherein, flow deflector（8）It is arranged at liquid-level probe（9）Lower section, institute
State flow deflector（8）Cross flow deflector screw（7）It is fixed on sensor body（3）On.
5. it is used to measure the two point form liquid level sensor of Rocket tank volume loading liquid level, its feature as claimed in claim 1
It is, the sensor body（3）Respectively by flange（16）, connecting seat（17）, mounting seat（18）, pipe（19）, end socket（20）
It is welded, wherein,
The flange（16）For connecting waterproof sealing socket（2）；
Mounting seat（18）It is arranged at connecting seat（17）On, mounting seat（18）For installing two liquid-level probe components（4）；
Pipe（19）External cylindrical surface processing mounting groove is used for the installation of sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088755.7A CN106768183A (en) | 2016-12-01 | 2016-12-01 | Two point form liquid level sensor for measuring Rocket tank volume loading liquid level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088755.7A CN106768183A (en) | 2016-12-01 | 2016-12-01 | Two point form liquid level sensor for measuring Rocket tank volume loading liquid level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768183A true CN106768183A (en) | 2017-05-31 |
Family
ID=58914176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611088755.7A Pending CN106768183A (en) | 2016-12-01 | 2016-12-01 | Two point form liquid level sensor for measuring Rocket tank volume loading liquid level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768183A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540258A (en) * | 2018-11-01 | 2019-03-29 | 上海航天精密机械研究所 | Five-point type loading liquid level measuring device based on infrared photoelectric sensor |
| CN111486920A (en) * | 2020-04-15 | 2020-08-04 | 上海航天精密机械研究所 | Method, system and medium for judging and analyzing volume measurement data of carrier rocket storage tank |
| CN112541885A (en) * | 2020-11-26 | 2021-03-23 | 蓝箭航天空间科技股份有限公司 | Method and system for detecting liquid level of rocket tank |
| CN114783673A (en) * | 2022-04-20 | 2022-07-22 | 天津航天长征火箭制造有限公司 | Passive pressure relief method for waterproof layer of carrier rocket cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020101373A1 (en) * | 2000-12-08 | 2002-08-01 | Arndt G. Dickey | Measurment system and method |
| CN2599538Y (en) * | 2003-03-06 | 2004-01-14 | 青岛智腾微电子有限公司 | Infrared photoelectric liquid level sensor |
| CN101391527A (en) * | 2007-03-30 | 2009-03-25 | 精工爱普生株式会社 | Liquid detection device, method of producing liquid detection device, and liquid container using the same |
| CN201600168U (en) * | 2010-02-07 | 2010-10-06 | 王学良 | Anti-condensation static-pressure type liquid level transmitter |
| CN203442165U (en) * | 2013-06-21 | 2014-02-19 | 厦门弗瑞特流体控制有限公司 | Improved structure of valve rod connection portion of vacuum butterfly valve |
| CN205373237U (en) * | 2016-02-17 | 2016-07-06 | 明光旭升科技有限公司 | Refrigerator is sealing strip for home sensor |
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
-
2016
- 2016-12-01 CN CN201611088755.7A patent/CN106768183A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020101373A1 (en) * | 2000-12-08 | 2002-08-01 | Arndt G. Dickey | Measurment system and method |
| CN2599538Y (en) * | 2003-03-06 | 2004-01-14 | 青岛智腾微电子有限公司 | Infrared photoelectric liquid level sensor |
| CN101391527A (en) * | 2007-03-30 | 2009-03-25 | 精工爱普生株式会社 | Liquid detection device, method of producing liquid detection device, and liquid container using the same |
| CN201600168U (en) * | 2010-02-07 | 2010-10-06 | 王学良 | Anti-condensation static-pressure type liquid level transmitter |
| CN203442165U (en) * | 2013-06-21 | 2014-02-19 | 厦门弗瑞特流体控制有限公司 | Improved structure of valve rod connection portion of vacuum butterfly valve |
| CN205373237U (en) * | 2016-02-17 | 2016-07-06 | 明光旭升科技有限公司 | Refrigerator is sealing strip for home sensor |
| CN106092271A (en) * | 2016-08-05 | 2016-11-09 | 武汉静磁栅机电制造有限公司 | A kind of laser liquid-level measurement apparatus and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540258A (en) * | 2018-11-01 | 2019-03-29 | 上海航天精密机械研究所 | Five-point type loading liquid level measuring device based on infrared photoelectric sensor |
| CN111486920A (en) * | 2020-04-15 | 2020-08-04 | 上海航天精密机械研究所 | Method, system and medium for judging and analyzing volume measurement data of carrier rocket storage tank |
| CN112541885A (en) * | 2020-11-26 | 2021-03-23 | 蓝箭航天空间科技股份有限公司 | Method and system for detecting liquid level of rocket tank |
| CN112541885B (en) * | 2020-11-26 | 2021-11-16 | 蓝箭航天空间科技股份有限公司 | Method and system for detecting liquid level of rocket tank |
| CN114783673A (en) * | 2022-04-20 | 2022-07-22 | 天津航天长征火箭制造有限公司 | Passive pressure relief method for waterproof layer of carrier rocket cable |
| CN114783673B (en) * | 2022-04-20 | 2023-09-19 | 天津航天长征火箭制造有限公司 | Passive decompression method for carrier rocket cable waterproof layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106768183A (en) | Two point form liquid level sensor for measuring Rocket tank volume loading liquid level | |
| US9109935B2 (en) | MEMS utility meters with integrated mass flow sensors | |
| US20090301189A1 (en) | Capacitive sensor assembly for determining level of fluent materials | |
| CN204963856U (en) | Mercury dip meter | |
| CN105716684A (en) | UAV (Unmanned Aerial Vehicle) liquid level measuring device and UAV liquid level measuring method | |
| CN103884399B (en) | Fluid level transmitter | |
| CN104501907A (en) | Aircraft fuel measuring and controlling system with self compensation capacitance type level sensor | |
| CN104990572A (en) | Special integrated temperature and pressure transmitter for oil well | |
| CN103759632A (en) | Stress type sensor for measuring structural deflection | |
| CN104748809B (en) | Intelligent meter and metering method based on pressure regulator | |
| US10175079B2 (en) | Encoder device and fluid meter comprised thereof | |
| CN203744916U (en) | Strain sensor for measuring flexibility of structure | |
| CN206035477U (en) | Hole deviation azimuthal measurement nipple joint | |
| CN106706189A (en) | Force measuring bolt | |
| CN204154354U (en) | A kind of intelligent capacitor level meter with automatic Calibration and automatic calibration | |
| CN207163532U (en) | A kind of liquid level sensor for oil tank of vehicle | |
| CN203744917U (en) | Strain sensor for measuring flexibility of structure | |
| CN206648752U (en) | A kind of wall surface temperature tests detector probe | |
| US20060053879A1 (en) | Rotary remote visual liquid quantity indicator | |
| CN103528724A (en) | Integrated axial force and torque sensor for polished rods of rod-pumped well | |
| CN208780387U (en) | A kind of pressure sensor | |
| CN201844868U (en) | Magnetic-effect level gauge applied to pressure tanks | |
| CN104198111B (en) | Subsurface equipment pressure transmitter | |
| CN105571536A (en) | Equipment for measuring volume deformation amount | |
| CN203745168U (en) | Strain sensor for measuring flexibility of structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |