CN112985375A - Position detection apparatus and method - Google Patents

Position detection apparatus and method Download PDF

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Publication number
CN112985375A
CN112985375A CN202110204824.0A CN202110204824A CN112985375A CN 112985375 A CN112985375 A CN 112985375A CN 202110204824 A CN202110204824 A CN 202110204824A CN 112985375 A CN112985375 A CN 112985375A
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China
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position detection
hydraulic
power
hydraulic container
container
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CN202110204824.0A
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Chinese (zh)
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黄振卫
张锦松
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Tsinghua University
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Tsinghua University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)

Abstract

A position detection apparatus and method, the position detection apparatus includes: a hydraulic container configured to provide a hydraulic environment for the detected member; the position detection device is positioned in the hydraulic container and is used for detecting the position change of the detected piece and generating a detection signal; the power device is connected with the hydraulic container and is used for providing power for the detected piece; and the signal receiving device is connected with the hydraulic container and is arranged to receive the detection signal generated by the position detection device. The position detection method is applied to the position detection apparatus described above.

Description

Position detection apparatus and method
Technical Field
The present disclosure relates to, but not limited to, the field of position measurement methods, and more particularly, to a position detection apparatus and method.
Background
In some technologies, the dynamic measurement method of the position detection device is that the position detection device is directly connected through a power system, and the dynamic measurement of the device is realized through a signal receiving part, so that the position detection device is only suitable for measurement in an air environment but cannot be used in a hydraulic environment, and the position detection device cannot finish normal measurement in the fields of oil exploration, river water flow monitoring and the like and in the environments of rainwater weather and the like.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the application provides position detection equipment and method, which can enable a position detection device to normally detect the position in a hydraulic environment.
In one aspect, an embodiment of the present application provides a position detection apparatus, including:
a hydraulic container configured to provide a hydraulic environment for the detected member;
the position detection device is positioned in the hydraulic container and is used for detecting the position change of the detected piece and generating a detection signal;
the power device is connected with the hydraulic container and is used for providing power for the detected piece;
and the signal receiving device is connected with the hydraulic container and is used for receiving the detection signal generated by the position detection device.
On the other hand, an embodiment of the present application provides a position detection method, which is applied to the above position detection apparatus, where the position detection apparatus includes a hydraulic container, a position detection device, a power device, and a signal receiving device, where the hydraulic container is connected to the power device and the signal receiving device, respectively, and the method includes:
the position detection device is arranged at a preset position in the hydraulic container and is connected with the signal receiving device; installing a detected piece in the hydraulic container and connecting the detected piece with the power device; injecting preset liquid into the hydraulic container to enable the interior of the hydraulic container to reach a preset pressure environment;
the power device provides power for the detected piece to enable the detected piece to move, the position detection device detects the position change of the detected piece and generates a detection signal, and the signal receiving device receives the detection signal of the position detection device.
The position detection device and the position detection method in the embodiment of the application can realize position detection of the position detection device in a hydraulic environment.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.
Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
FIG. 1 is a schematic diagram of a position detection device in an embodiment of the present application;
fig. 2 is a flowchart of a position detection method in an example of the present application.
Detailed Description
The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
The inventor of the application finds that in practice, in some technologies, the dynamic measurement of the position detection device is realized by directly connecting the position detection device with a power system and then receiving a detection signal of the position detection device, when the device works in a hydraulic environment, the connection mode and the structure arrangement enable the position detection device and the power source of the power system to be in the hydraulic environment and cannot seal the power source, it also has a great influence on the position detecting device and the sealing of the signal output cable of the position detecting device, so that the performance of the device itself is affected after sealing, even the position measurement cannot be completed, therefore, the position detection device is only suitable for measurement in an air environment, but cannot be used in a hydraulic environment, in the fields of oil exploration, river water flow monitoring and the like and under the environment of rainwater and weather, the position detection device cannot complete normal measurement.
Fig. 1 is a schematic diagram of a position detection apparatus according to an embodiment of the present application, and as shown in fig. 1,
the embodiment of the application provides a position detection device, including:
a hydraulic container 4 configured to provide a hydraulic environment for the detected member;
a position detecting device 2, which is positioned inside the hydraulic container 4 and is configured to detect a position change of the detected member and generate a detection signal;
a power device 5 connected with the hydraulic container 4 and used for providing power for the detected piece;
the signal receiving device 1 is connected to the hydraulic tank 4 and configured to receive the detection signal generated by the position detecting device 2.
The position detection device in the embodiment of the application is characterized in that a detected piece is placed in the hydraulic container 4 during working, a hydraulic environment is provided by the hydraulic container 4, the power device 5 provides power for the detected piece, the position detection device 2 is also placed in the hydraulic container 4 so as to detect the position change of the detected piece, the detected piece moves under the action of the power device 5, the position detection device 2 detects the position change of the detected piece and generates a detection signal along with the position change of the detected piece, and the detection signal is transmitted to the signal receiving device 1 connected with the hydraulic container 4 so as to facilitate subsequent analysis and processing. The position detection device in the embodiment of the application can detect the position change of the detected piece in a hydraulic environment.
In this application embodiment, an operator may simulate a hydraulic environment in an actual application scenario, and preset the hydraulic environment of the hydraulic container 4, for example, the hydraulic environment may be set to a constant pressure value or a variable pressure value, so as to obtain a set working environment of the position detection device.
The position detection device in the embodiment of the application can simulate the hydraulic environment under various application scenes and complete the detection of the position detection device, and after corresponding detection parameters are obtained and analyzed, suitable parameters can be set in the actual application environment to realize the normal work of the position detection device under the hydraulic environment, for example: the device can be used for position detection in the fields of oil exploration, river flow monitoring and the like, and can be applied to related instruments and equipment such as an underwater detector, an underwater naval vessel and the like; by using the position detection device in the embodiment of the present application, it is possible to realize that the position detection device can normally operate also in environments such as rainwater weather.
As shown in fig. 1, in the position detecting apparatus in the embodiment of the present application, the position detecting device 2 may not be directly connected to the power device 5, and the design of the connection relationship enables the power device 5 to be separately sealed, and the position detecting device 2 to be separately sealed, and the connection with other devices can ensure the normal use of each device and mechanism in a hydraulic environment through dynamic sealing or static sealing, so that it is possible for the position detecting device to operate in a hydraulic environment.
In an exemplary embodiment, a suitable position for installing the position detection device 2 may be preset in the hydraulic container 4, and the position detection device 2 may be provided with a sealing function locally (i.e., the position detection device 2 itself has a sealing function), or the position detection device 2 itself may be subjected to a secondary sealing process separately and then applied to a hydraulic environment. The detected member may be installed in a suitable position preset in the hydraulic container 4, which is not limited in the embodiment of the present application.
In an exemplary embodiment, the detection signal generated by the position detecting device 2 may be an electrical signal, and when the position change of the position measuring device 2 is set to be synchronous with the position change of the detected object, the detection signal may be used to identify the position information of the position measuring device 2, i.e. to reflect the position change of the detected object. The embodiment of the present application does not limit the types of detection signals of the position detection device, and the detection form and principle adopted by the position detection device.
In an exemplary embodiment, the position detecting apparatus further includes:
the pressurizing device 3 is connected to the hydraulic tank 4 and configured to supply pressure to the hydraulic tank 4.
Can come for hydraulic pressure container 4 increase pressure through pressure device 3, under the two cooperation works, can simulate the hydraulic pressure environment of different pressure, be favorable to realizing under the different hydraulic pressure environment dynamic measurement of position detecting device.
In an exemplary embodiment, the pressurizing means 3 provides the pressure to the hydraulic reservoir 4 in an automatic and/or manual manner.
The pressurizing device 3 can provide hydraulic pressure with different sizes for the hydraulic container 4, when the hydraulic pressure is set to a certain fixed pressure value, the pressurizing part 3 can make the hydraulic container 4 realize the pressure value through a manual pressurizing mode, an automatic pressurizing mode or a combination mode of the two modes; when the hydraulic pressure is set to a variable pressure value, the pressurizing portion 3 may cause the hydraulic tank 4 to realize the change in the pressure value by an automatic pressurizing manner, a manual pressurizing manner, or a combination of both manners. The working form of the pressurizing device is not limited in the embodiment of the application.
As shown in fig. 1, the signal receiving device 1, the power device 5, and the pressurizing device 3 are respectively connected to the hydraulic container 4, and the connection shown in fig. 1 is only an exemplary connection, and the embodiment of the present application does not limit the position and number of the devices.
In an exemplary embodiment, the position detecting apparatus further includes: watertight connections, static seals 7; the position detection device 2 includes: a cable outputting a detection signal;
the cable of the position detecting device 2 (i.e., the cable of the position detecting device 2 outputting the detection signal) is connected to the signal receiving device 1 through a watertight connector, which is sealed by a static seal 7.
The cable of the position detection device 2 is connected with the signal receiving device 1 through the watertight connecting piece, normal signal transmission under the hydraulic environment can be guaranteed, the watertight connecting piece is sealed through the static sealing piece 7, protective measures are added on the outer layer of the watertight connecting piece, the detection signal of the position detection device 2 under the hydraulic environment can be further guaranteed to be normally and stably output, and the sealing problem of the position detection device 2 during signal output under the hydraulic environment is solved.
The static seal 7 used in the embodiment of the present application is an O-ring, however, the embodiment of the present application is not limited to what kind of static seal is used for sealing. In practical application, other forms of sealing manners may also be adopted, and the embodiments of the present application do not limit this.
In an exemplary embodiment, the power unit 5 includes: a power source and a kinematic pair; the power source is used for generating power, and the kinematic pair is connected with the power source and the detected piece and is used for transmitting the power generated by the power source to the detected piece;
the position detection apparatus further includes: a dynamic seal 6; the kinematic pair seals between the hydraulic reservoir 4 and the power source via a dynamic seal 6.
Can set up the power supply in hydraulic pressure container 4's outside, connect the power supply and be detected the piece by the kinematic pair for under the prerequisite to being detected a transmission power, can guarantee the stability of testing environment, help pressing close to the operational environment who simulates more.
The kinematic pair ensures the sealing between the hydraulic container part 4 and the power source through the dynamic sealing element 6, and solves the sealing problem between the tested piece and the power source when the tested piece moves in the hydraulic container 4.
Dynamic sealing can be achieved in the form of a gray ring or an oil seal, and the application is not limited to which dynamic sealing element is used for sealing. In practical application, other forms of sealing manners may also be adopted, and the embodiments of the present application do not limit this.
The power source of the power device 5 may be manually powered or automatically powered, which is not limited in the embodiments of the present application.
The position detection equipment that this application embodiment provided can carry out position detection under hydraulic pressure environment through reasonable structure setting, has broken through the restriction that current position detection device can only carry out position detection under air circumstance to can simulate different hydraulic pressure environment, make carry out position detection more nimble, be convenient for more relevant work develop.
The embodiment of the application provides a position detection method, which is applied to the position detection equipment, the position detection equipment comprises a hydraulic container 4, a position detection device 2, a power device 5 and a signal receiving device 1, the hydraulic container 4 is respectively connected with the power device 5 and the signal receiving device 1, and the method comprises the following steps:
the position detection device 2 is arranged at a preset position in the hydraulic container 4 and is connected with the signal receiving device 1; the detected piece is arranged in the hydraulic container 4 and is connected with the power device 5; injecting preset liquid into the hydraulic container 4 to enable the interior of the hydraulic container 4 to reach a preset pressure environment;
the power device 5 supplies power to the detected object to move the detected object, the position detection device 2 detects the position change of the detected object to generate a detection signal, and the signal receiving device 1 receives the detection signal of the position detection device 2.
The position detection method in the embodiment of the application can detect the position change of the detected piece in a hydraulic environment.
In this application embodiment, when injecting predetermined liquid into hydraulic pressure container 4, operating personnel can simulate the hydraulic pressure environment under the practical application scene, select the kind of injecting liquid, can set up to invariable pressure value or the pressure value that changes, through testing and adjusting, not only can realize making position detection device normally work under the actual hydraulic pressure scene, also can obtain under the operational environment of settlement, by some relevant parameters of detection piece, this has certain guiding significance to actual work.
In an exemplary embodiment, the position detection apparatus further includes: a pressurizing device 3 connected to the hydraulic reservoir 4, the method further comprising:
after a predetermined liquid is injected into the hydraulic container 4, the hydraulic container 4 is connected to the pressurizing device 3, and the pressurizing device 3 is used to supply pressure to the hydraulic container 4.
In an exemplary embodiment, the pressurizing means 3 provides the pressure to the hydraulic reservoir 4 in an automatic and/or manual manner.
In an exemplary embodiment, the position detection apparatus further includes: watertight connections, static seals 7; the position detection device 2 includes: a cable outputting a detection signal;
the position detection device 2 is connected to the signal receiving device 1, and includes:
the cable of the position detection device 2 is connected to the signal receiving device 1 by a watertight connection, which is sealed by a static seal 7.
In an exemplary embodiment, the power unit 5 includes: the power source is used for generating power and the kinematic pair is connected with the power source; the position detection apparatus further includes: a dynamic seal 6;
the detected piece is connected with the power device 5, and the method comprises the following steps:
the detected member is connected to a kinematic pair, and the kinematic pair seals between the hydraulic tank 4 and the power source via a dynamic seal 6.
According to the position detection method, after the position detection device 2 is arranged in the hydraulic container 4, the pressurization device 3 can be used for pressurizing the hydraulic container 4 to simulate the required hydraulic pressure, in the power device 5, the power source provides power for the detected piece through the dynamic sealing piece 6 through the kinematic pair, the position detection device 2 in the hydraulic environment generates a detection signal after detecting the position change of the detected piece, and the detection signal is output to the signal receiving device 1 through the static sealing piece 7, so that the dynamic measurement of the position detection device 2 in the hydraulic environment is realized.
The position detection method according to the embodiment of the present application is described below with an example.
As shown in fig. 2, the position detection method provided by the present example includes:
s100, mounting the position detection device to the hydraulic container and connecting the position detection device with the signal receiving device;
installing the position detection device 2 into the hydraulic container 4, connecting an output cable of a detection signal to the outside of the hydraulic container 4 through a watertight connector, and connecting the signal receiving device 1; wherein the watertight connections use static seals 7 to complete the sealing of the signal cables.
S101, mounting a detected piece to a hydraulic container and connecting a power device;
the detected piece is connected with a kinematic pair of a power device 5 and is arranged in a hydraulic container 4, the kinematic pair penetrates through the hydraulic container 4 and is connected with a power source of the power device 5, and dynamic sealing of the kinematic pair is completed by using a dynamic sealing piece 6.
S102, filling liquid into the hydraulic container, and setting a proper hydraulic environment;
the required liquid is filled into the hydraulic container 4, the hydraulic container 4 is connected with the pressurizing device 3, and the pressurizing device 3 adds hydraulic pressure with different pressures to the hydraulic container 4 to simulate the actual hydraulic environment applied by the position detection device 2.
S103, after reaching the preset hydraulic environment, starting detection.
When the preset hydraulic environment is reached, the power device 5 provides the motion power of the detected piece, and the signal receiving device 1 receives the detection signal generated by the position detection device 2, so as to complete the dynamic measurement of the position detection device 2 in the hydraulic environment.

Claims (10)

1. A position detection apparatus, characterized by comprising:
a hydraulic container configured to provide a hydraulic environment for the detected member;
the position detection device is positioned in the hydraulic container and is used for detecting the position change of the detected piece and generating a detection signal;
the power device is connected with the hydraulic container and is used for providing power for the detected piece;
and the signal receiving device is connected with the hydraulic container and is used for receiving the detection signal generated by the position detection device.
2. The position detection apparatus according to claim 1, characterized by further comprising:
and a pressurizing device connected with the hydraulic container and configured to provide pressure for the hydraulic container.
3. The position detection apparatus according to claim 1, characterized by further comprising: watertight connections, static seals; the position detection device includes: a cable outputting the detection signal;
the cable of the position detection device is connected to the signal receiving device by the watertight connector, which is sealed by the static seal.
4. The position detecting apparatus according to claim 1, characterized in that the power means includes: a power source and a kinematic pair; the power source is used for generating power, and the kinematic pair is connected with the power source and the detected piece and is used for transmitting the power generated by the power source to the detected piece;
the position detection apparatus further includes: a dynamic seal; the kinematic pair seals between the hydraulic reservoir and the power source through the dynamic seal.
5. Position detection apparatus according to claim 2, wherein the pressurising means provides pressure to the hydraulic reservoir by automatic and/or manual means.
6. A position detection method is characterized by being applied to position detection equipment, wherein the position detection equipment comprises a hydraulic container, a position detection device, a power device and a signal receiving device, the hydraulic container is respectively connected with the power device and the signal receiving device, and the method comprises the following steps:
the position detection device is arranged at a preset position in the hydraulic container and is connected with the signal receiving device; installing a detected piece in the hydraulic container and connecting the detected piece with the power device; injecting preset liquid into the hydraulic container to enable the interior of the hydraulic container to reach a preset pressure environment;
the power device provides power for the detected piece to enable the detected piece to move, the position detection device detects the position change of the detected piece and generates a detection signal, and the signal receiving device receives the detection signal of the position detection device.
7. The position detection method according to claim 6, characterized in that the position detection apparatus further comprises: a pressurizing device coupled to the hydraulic reservoir, the method further comprising:
and after preset liquid is injected into the hydraulic container, connecting the hydraulic container with the pressurizing device, and providing pressure for the hydraulic container by utilizing the pressurizing device.
8. The position detection method according to claim 6, characterized in that the position detection apparatus further comprises: watertight connections, static seals; the position detection device includes: a cable outputting the detection signal;
connecting the position detection device with the signal receiving device, comprising:
connecting the cable of the position detection device to the signal receiving device by the watertight connector, the watertight connector being sealed by the static seal.
9. The position detection method according to claim 6, characterized in that the power device includes: the power source is used for generating power and the kinematic pair is connected with the power source; the position detection apparatus further includes: a dynamic seal;
will be detected the piece with power device carries out the connection, include:
and connecting the detected piece with the kinematic pair, wherein the kinematic pair seals between the hydraulic container and the power source through the dynamic sealing piece.
10. The position detection method according to claim 7, characterized in that the pressurizing means provides the pressure to the hydraulic reservoir by automatic and/or manual means.
CN202110204824.0A 2021-02-23 2021-02-23 Position detection apparatus and method Pending CN112985375A (en)

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Application Number Priority Date Filing Date Title
CN202110204824.0A CN112985375A (en) 2021-02-23 2021-02-23 Position detection apparatus and method

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Application Number Priority Date Filing Date Title
CN202110204824.0A CN112985375A (en) 2021-02-23 2021-02-23 Position detection apparatus and method

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CN112985375A true CN112985375A (en) 2021-06-18

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JPS54161352A (en) * 1978-06-12 1979-12-20 Youhei Kinoshita Device for detecting and measuring position
FR2519141A1 (en) * 1981-12-30 1983-07-01 France Etat Liq. level determn. appts. for remote tank - uses soft bag immersed in tank and pressurised to predetermined level, and pressure sensitive level gauge
JPS63263413A (en) * 1987-04-21 1988-10-31 Nec Corp Underwater buoy position detector using laser light
CN2180979Y (en) * 1993-08-27 1994-10-26 增益资讯股份有限公司 Industrial section-free type digital liquid level checker
CZ89096A3 (en) * 1996-03-26 1997-11-12 Frantisek Sedlacek Hydrostatic hydraulic levelling apparatus for exact measuring different heights
CN2700838Y (en) * 2003-08-11 2005-05-18 长沙超凡电脑系统有限公司 Micro power consumption interrupted volumetric type measuring instrument
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JP2011085451A (en) * 2009-10-14 2011-04-28 Denso Corp Liquid level detection device and method of manufacturing the same
CN103335788A (en) * 2013-07-01 2013-10-02 武汉船用机械有限责任公司 Water tightness test device
CN110823315A (en) * 2019-12-12 2020-02-21 深圳市腾盛精密装备股份有限公司 Non-contact high-precision liquid level detection system and detection method thereof
CN210664651U (en) * 2020-02-24 2020-06-02 潍柴动力股份有限公司 Measuring device of liquid level sensor
CN211144939U (en) * 2019-12-13 2020-07-31 鞍山电磁阀有限责任公司 Oil tank

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54161352A (en) * 1978-06-12 1979-12-20 Youhei Kinoshita Device for detecting and measuring position
FR2519141A1 (en) * 1981-12-30 1983-07-01 France Etat Liq. level determn. appts. for remote tank - uses soft bag immersed in tank and pressurised to predetermined level, and pressure sensitive level gauge
JPS63263413A (en) * 1987-04-21 1988-10-31 Nec Corp Underwater buoy position detector using laser light
CN2180979Y (en) * 1993-08-27 1994-10-26 增益资讯股份有限公司 Industrial section-free type digital liquid level checker
CZ89096A3 (en) * 1996-03-26 1997-11-12 Frantisek Sedlacek Hydrostatic hydraulic levelling apparatus for exact measuring different heights
CN2700838Y (en) * 2003-08-11 2005-05-18 长沙超凡电脑系统有限公司 Micro power consumption interrupted volumetric type measuring instrument
CN101221062A (en) * 2007-01-10 2008-07-16 陞达科技股份有限公司 Liquid level detecting module group and liquid supply system
JP2011085451A (en) * 2009-10-14 2011-04-28 Denso Corp Liquid level detection device and method of manufacturing the same
CN103335788A (en) * 2013-07-01 2013-10-02 武汉船用机械有限责任公司 Water tightness test device
CN110823315A (en) * 2019-12-12 2020-02-21 深圳市腾盛精密装备股份有限公司 Non-contact high-precision liquid level detection system and detection method thereof
CN211144939U (en) * 2019-12-13 2020-07-31 鞍山电磁阀有限责任公司 Oil tank
CN210664651U (en) * 2020-02-24 2020-06-02 潍柴动力股份有限公司 Measuring device of liquid level sensor

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Application publication date: 20210618