CN109655196A - A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor - Google Patents
A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor Download PDFInfo
- Publication number
- CN109655196A CN109655196A CN201910035733.1A CN201910035733A CN109655196A CN 109655196 A CN109655196 A CN 109655196A CN 201910035733 A CN201910035733 A CN 201910035733A CN 109655196 A CN109655196 A CN 109655196A
- Authority
- CN
- China
- Prior art keywords
- hole
- watchcase
- control panel
- terminal plate
- mistor
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/14—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means involving the displacement of magnets, e.g. electromagnets
Abstract
The invention discloses a kind of distance-transmission pressure gauges equipped with magneto-dependent sensor of pressure gauge technical field, including compression fittings and watchcase, the top of the compression fittings and the bottom of watchcase connect, control panel is connected on the left of the watchcase, the front surface of the control panel is connected with PORT COM, structure of the invention is reasonable, production is simple, it is practical, it is contactless to transport the signal that conducts electricity, suitable for the biggish use environment of anti-riot and amplitude, it is connected between terminal plate and mistor by conducting wire, terminal plate powers on, so that constituting a complete measuring bridge between mistor and magnet steel, the pressure value of fluid to be measured or gas is measured by the magnetoresistance between mistor and magnet steel, it can effectively be measured under the larger environment of amplitude, improve the measuring accuracy of pressure gauge, and very-long-range is carried out by GPRS module Signal transmitting is able to carry out effective long-range monitoring, has effectively eliminated the limitation of region.
Description
Technical field
The present invention relates to pressure gauge technical field, specially a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor.
Background technique
Distance-transmission pressure gauge is suitable for measuring the pressure for not playing the media such as liquids and gases of corrosiveness to steel and copper alloy,
One slide wire resistance formula transmitter is set inside electric resistance long distance sensing pressure meter, therefore measured value can be reached the phase far from measurement with electricity
It closes on display instrument or computer, to realize centralized detecting and far distance control.But existing remote pressure gauge is only simple
Mechanical pointer pressure gauge, under the larger environment of amplitude, the data of measurement are inaccurate, send utensil by resistance-type
There is certain transporting function, but it is namely practical in a certain range, when related display instrument or computer and far
When passing pressure gauge can not be connected in the same region by conducting wire, common distance-transmission pressure gauge just loses the work of teletransmission
With effective long-range monitoring can not be carried out.
Summary of the invention
The purpose of the present invention is to provide a kind of distance-transmission pressure gauges equipped with magneto-dependent sensor, to solve above-mentioned background technique
Only simple mechanical pointer pressure gauge measures the existing remote pressure gauge of middle proposition under the larger environment of amplitude
Data it is inaccurate, there is certain transporting function by resistance-type transmitter, but namely compare in a certain range
It is more practical, when related display instrument or computer can not be connect with distance-transmission pressure gauge in the same region by conducting wire,
The problem of common distance-transmission pressure gauge just loses the effect of teletransmission, can not carry out effective long-range monitoring.
To achieve the above object, the invention provides the following technical scheme: a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor,
Including compression fittings, watchcase, connecting rod and bourdon tube, the bottom of the tops of the compression fittings and watchcase is connected, the connecting rod and
Bourdon tube is installed in the inner cavity of watchcase, and the right end bottom of the connecting rod and the left end bottom of bourdon tube connect, the watchcase
Left side is connected with control panel, and the front surface of the control panel is connected with PORT COM, and the inner cavity left side top of the control panel connects
It is connected to receiving module, processing module and GPRS module, the receiving module exists in the upper end of processing module, the processing module
The upper end of GPRS module, the inner cavity bottom right side of the control panel are connected with terminal plate, the inner cavity bottom right side of the control panel
First through hole is offered, the front surface of the terminal plate is connected with mistor, laterally connects at the top of the front surface of the terminal plate
It connects there are three binding post, the mistor is connect by conducting wire with binding post, and three binding posts are in mistor
The front surface middle-end left and right sides of upper end, the terminal plate offers the first mounting hole, and the mistor is at two first
Between mounting hole, the front surface bottom middle-end of the watchcase opens up fluted, and the front surface of the groove offers the second installation
Hole, the front surface bottom right side of the watchcase offer the second through-hole, and the front surface of the bourdon tube is equipped with magnet steel, the magnetic
Steel is connect by conducting wire with receiving module in the inside of the second through-hole, the terminal plate, and the receiving module passes through conducting wire and place
Module connection is managed, the processing module is connect by conducting wire with PORT COM and GPRS module.
Preferably, the bottom of the watchcase offers and the mounting groove that matches at the top of compression fittings, and mounting groove
Through the bottom of watchcase, it is plugged at the top of the compression fittings in mounting groove and through mounting groove.
Preferably, the control panel is identical as the outer diameter of watchcase, and the inner cavity quadrangle of the control panel and watchcase offers
Threaded hole, and the threaded hole in the control panel is corresponding with the threaded hole on watchcase, it will by the cooperation of bolts and nuts
Control panel is mounted on watchcase.
Preferably, control panel position corresponding with the first mounting hole on the contact surface and terminal plate of terminal plate is opened
Circular hole equipped with circular hole, and in control panel coincides with the first mounting hole, and terminal plate is fixed on control panel by screw
Inner cavity, and first through hole of the mistor on the terminal plate in the control panel.
Preferably, the first through hole is identical as the size of the second through-hole, and the first through hole is mutually be overlapped with the second through-hole
It closing, the mistor on the terminal plate is corresponding with the magnet steel being mounted on bourdon tube through first through hole and the second through-hole,
And the mistor is mutually not in contact with each other with magnet steel.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention is reasonable, production is simple, practical, nothing
Contact transports the signal that conducts electricity, is suitable for the biggish use environment of amplitude, passes through conducting wire between terminal plate and mistor and connects, wiring
Plate powers on so that constitute a complete measuring bridge between mistor and magnet steel, by mistor and magnet steel it
Between magnetoresistance measurement fluid to be measured or gas pressure value, can effectively be measured under the larger environment of amplitude,
The measuring accuracy of pressure gauge is improved, and the transmitting of very-long-range signal is carried out by GPRS module, is able to carry out effective long-range
Monitoring, has effectively eliminated the limitation of region.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is control panel cross-sectional view of the present invention；
Fig. 3 is control panel section view broken away view of the present invention；
Fig. 4 is terminal plate structural schematic diagram of the present invention；
Fig. 5 is meter casing structure schematic diagram of the present invention.
In figure: 1 compression fittings, 2 watchcases, 3 control panels, 4 PORT COMs, 5 receiving modules, 6 processing modules, 7 GPRS moulds
Block, 8 terminal plates, 9 first through hole, 10 mistors, 11 binding posts, 12 first mounting holes, 13 grooves, 14 second mounting holes, 15
Second through-hole, 16 connecting rods, 17 bourdon tubes, 18 magnet steel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor, and structure of the invention is reasonable, and production is simple, practical
Property it is strong, contactless fortune conduct electricity signal, be suitable for the biggish use environment of anti-riot and amplitude, and very-long-range is carried out by GPRS module
Signal transmitting is able to carry out effective long-range monitoring, please refers to Fig. 1-5, specifically there is compression fittings 1, watchcase 2, connecting rod 16 and bullet
The top of reed pipe 17, compression fittings 1 is connect with the bottom of watchcase 2, and connecting rod 16 and bourdon tube 17 are installed in the inner cavity of watchcase 2,
The working method of pressure gauge is existing technology, is underdrawed at this, the right end bottom of connecting rod 16 and a left side for bourdon tube 17
Bottom connection is held, the other end of connecting rod 16 is equipped with pointer, and the other end of bourdon tube 17 and the top of compression fittings 1 are welded on one
It rises, tested gas or fluid to be measured enter the inner cavity of bourdon tube 17 by compression fittings 1,17 stress of bourdon tube deformation occurs band
Dynamic 16 activity of connecting rod, connecting rod 16 drive pointer mobile, show pressure value, and the left side of watchcase 2 is connected with control panel 3, control panel 3
Front surface is connected with PORT COM 4, and PORT COM 4 is RS232 PORT COM, and communication interface 4 passes through data line and related display
Pressure data, is transmitted in related display instrument or computer by instrument or computer connection by communication interface, control panel 3
Inner cavity left side top is connected with receiving module 5, processing module 6 and GPRS module 7, the model RFM210 of receiving module 5, processing
The model AMD-RYZEN-5-2400G of module 6, the model SIM800 of GPRS module 7, receiving module 5 receive measurement data
And processing module 6 is passed to, measurement data is transmitted on communication interface 4 or GPRS module 7 by processing module 6, GPRS mould
Block 7 is transmitted to by optical cable to be connected on network correlation display instrument or computer, receiving module 5 in the upper end of processing module 6,
For processing module 6 in the upper end of GPRS module 7, the inner cavity bottom right side of control panel 3 is connected with terminal plate 8, and terminal plate 8 is X-5050
The inner cavity bottom right side of terminal plate, control panel 3 offers first through hole 9, referring to Fig. 4, the front surface of terminal plate 8 is connected with magnetic
Quick resistance 10, mistor 10 are fixed on terminal plate 8 by AB glue, at the top of the front surface of terminal plate 8 there are three lateral connections
Binding post 11, binding post 11 are copper binding post, and mistor 10 is connect by conducting wire with binding post 11, and terminal plate 8 is led for electric current
Body provides power supply for mistor 10, and the induced current of mistor 10 is transmitted on receiving module 5, three binding posts
11 offer the first mounting hole 12, magnetosensitive electricity at left and right sides of the upper end of mistor 10, the front surface middle-end of terminal plate 8
Resistance 10 is between two the first mounting holes 12, and the front surface bottom middle-end of watchcase 2 opens up fluted 13, and the front surface of groove 13 is opened
Equipped with the second mounting hole 14, compression fittings 1 are fixed on watchcase 3 through 14 by screw, the front surface bottom right side of watchcase 2
The second through-hole 15 is offered, the front surface of bourdon tube 17 is equipped with magnet steel 18, and magnet steel 18 is fixed on bourdon tube 17 by AB glue,
Magnet steel 18 is connect by conducting wire with receiving module 5 in the inside of the second through-hole 15, terminal plate 8, and receiving module 5 passes through conducting wire and place
It manages module 6 to connect, processing module 6 is connect by conducting wire with PORT COM 4 and GPRS module 7.The bottom of Fig. 1-5 watchcase 2 opens up
There is the mounting groove to match with the top of compression fittings 1, and mounting groove runs through the bottom of watchcase 2, the top of compression fittings 1 is inserted
It connects in mounting groove and through mounting groove, control panel 3 is identical as the outer diameter of watchcase 2, and control panel 3 and the inner cavity quadrangle of watchcase 2 are equal
Threaded hole is offered, and the threaded hole in control panel 3 is corresponding with the threaded hole on watchcase 2, passes through matching for bolts and nuts
Control panel 3 is mounted on watchcase 2 by conjunction, and control panel 3 is fixed on watchcase 2 by the cooperation of screw bolt and nut, so that control
Disk 3 can be firmly installed on watchcase 2, not easily to fall off, first on the contact surface and terminal plate 8 of control panel 3 and terminal plate 8
The corresponding position of mounting hole 12 offers circular hole, and the circular hole in control panel 3 coincides with the first mounting hole 12, and passes through
Terminal plate 8 is fixed on the inner cavity of control panel 3 by screw, and the mistor 10 on terminal plate 8 is first logical in the control panel 3
Terminal board 8 can be effectively firmly installed in control panel 3, not easily to fall off, first through hole 9 by hole 9 by screw
It is identical as the size of the second through-hole 15, and first through hole 9 coincides with the second through-hole 15, the mistor 10 on terminal plate 8 passes through
It wears first through hole 9 and the second through-hole 15 is corresponding with the magnet steel 18 being mounted on bourdon tube 17, and mistor 10 and magnet steel
18 do not contact, and mistor 10 enables the magnetism on magnet steel 18 straight through first through hole 9 and the second through-hole 15 and magnet steel 18
It connects and is transmitted on mistor 10, so that constituting a complete measuring bridge between magnet steel 18 and mistor 10, work as magnet steel
When 18 generation offset, the electric bridge disequilibrium constituted between magnet steel 18 and mistor 10 exports the mould directly proportional to pressure value
Quasi- signal, can measure the pressure of gas or liquid under the larger environment of amplitude, effective to improve measurement precision.
Working principle: the present invention is connect by conducting wire with supply network, in use, compression fittings 1 are mounted on tested appearance
Tested gas or fluid to be measured are stored on device, in tested container, tested gas or fluid to be measured pass through compression fittings 1 and flow to bullet
In reed pipe 17, the connection type of compression fittings 1 and bourdon tube 17 is the prior art, is not described in detail, bourdon tube 17 is by quilt
The pressure of the pressure or fluid to be measured of surveying gas generates deformation, and 17 deformation of bourdon tube drives magnet steel 18 mobile, so that magnet steel 18 produces
Raw offset, it is opposite between magnet steel 18 and mistor 10 to install and be not in contact with each other, magnetic is generated between magnet steel 18 and mistor 10
Inhibition effect, mistor 10 are mounted on terminal plate 8 and are connect by conducting wire with binding post 11, and terminal plate 8 is connected by conducting wire
Power supply, so that a complete measuring bridge is constituted between mistor 10 and magnet steel 18, when magnet steel 18 generates offset, magnet steel
The electric bridge disequilibrium constituted between 18 and mistor 10 exports the analog signal directly proportional to pressure value, and signal is by connecing
Line plate 8 is transmitted on receiving module 5, and signal is passed to processing module 6 by receiving module 5, when relevant display instrument or calculating
Machine the present invention nearby when, can be by conducting wire by related display instrument or computer when range is no more than 5 meters of receiving module
It is connected on PORT COM 4, processing module 6 is passed the signal along on PORT COM 4 by conducting wire, and signal passes through PORT COM 4
Be transmitted on related display instrument or computer, when relevant display instrument or computer distance the present invention farther out when, Wu Fatong
When crossing conducting wire and being connected, signal is passed to GPRS module 7 by processing module 6, and GPRS module 7 is transmitted to correlation by network signal
In display instrument or computer, it is able to carry out long-range monitoring, eliminates the limitation of region.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor, including compression fittings (1), watchcase (2), connecting rod (16) and bourdon tube
(17), the top of the compression fittings (1) is connect with the bottom of watchcase (2), and the connecting rod (16) and bourdon tube (17) are respectively mounted
It is connect in the right end bottom of the inner cavity of watchcase (2), the connecting rod (16) with the left end bottom of bourdon tube (17), it is characterised in that:
It is connected with control panel (3) on the left of the watchcase (2), the front surface of the control panel (3) is connected with PORT COM (4), described
The inner cavity left side top of control panel (3) is connected with receiving module (5), processing module (6) and GPRS module (7), the reception mould
Block (5) in the upper end of processing module (6), the processing module (6) in the upper end of GPRS module (7), the control panel (3) it is interior
Chamber bottom right side is connected with terminal plate (8), and the inner cavity bottom right side of the control panel (3) offers first through hole (9), described to connect
The front surface of line plate (8) is connected with mistor (10), and there are three wiring for lateral connection at the top of the front surface of the terminal plate (8)
Column (11), the mistor (10) are connect by conducting wire with binding post (11), and three binding posts (11) are in magnetosensitive electricity
The upper end of (10) is hindered, offers the first mounting hole (12), the magnetosensitive at left and right sides of the front surface middle-end of the terminal plate (8)
For resistance (10) between two the first mounting holes (12), the front surface bottom middle-end of the watchcase (2) opens up fluted (13), institute
The front surface for stating groove (13) offers the second mounting hole (14), and the front surface bottom right side of the watchcase (2) offers second
The front surface of through-hole (15), the bourdon tube (17) is equipped with magnet steel (18), and the magnet steel (18) is in the interior of the second through-hole (15)
Side, the terminal plate (8) are connect by conducting wire with receiving module (5), and the receiving module (5) passes through conducting wire and processing module
(6) it connects, the processing module (6) is connect by conducting wire with PORT COM (4) and GPRS module (7).
2. a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor according to claim 1, it is characterised in that: the watchcase
(2) bottom offer with the mounting groove that matches at the top of compression fittings (1), and mounting groove runs through the bottom of watchcase (2),
It is plugged at the top of the compression fittings (1) in mounting groove and through mounting groove.
3. a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor according to claim 1, it is characterised in that: the control panel
(3) identical as the outer diameter of watchcase (2), the inner cavity quadrangle of the control panel (3) and watchcase (2) offers threaded hole, and institute
The threaded hole stated on control panel (3) is corresponding with the threaded hole on watchcase (2), by the cooperations of bolts and nuts by control panel
(3) it is mounted on watchcase (2).
4. a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor according to claim 1, it is characterised in that: the control panel
(3) position corresponding with the first mounting hole (12) on the contact surface of terminal plate (8) and terminal plate (8) offers circular hole, and
And the circular hole in control panel (3) coincides with the first mounting hole (12), and terminal plate (8) is fixed on control panel by screw
(3) inner cavity, and first through hole (9) of the mistor (10) on the terminal plate (8) on control panel (3).
5. a kind of distance-transmission pressure gauge equipped with magneto-dependent sensor according to claim 1, it is characterised in that: described first is logical
Hole (9) is identical as the size of the second through-hole (15), and the first through hole (9) coincides with the second through-hole (15), the wiring
Mistor (10) on plate (8) is through first through hole (9) and the second through-hole (15) and the magnet steel being mounted on bourdon tube (17)
(18) corresponding, and the mistor (10) is mutually not in contact with each other with magnet steel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035733.1A CN109655196A (en) | 2019-01-15 | 2019-01-15 | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035733.1A CN109655196A (en) | 2019-01-15 | 2019-01-15 | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109655196A true CN109655196A (en) | 2019-04-19 |
Family
ID=66120240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910035733.1A Pending CN109655196A (en) | 2019-01-15 | 2019-01-15 | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109655196A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01165438U (en) * | 1988-05-12 | 1989-11-20 | ||
| CN2075780U (en) * | 1989-11-23 | 1991-04-24 | 龙在澄 | Remote pressure gauge with magnetic sensitive sensor |
| CN2088247U (en) * | 1990-07-05 | 1991-11-06 | 龙在澄 | Magnetic sensitive remote transmitting pressure gauge |
| JP2000214036A (en) * | 1999-01-28 | 2000-08-04 | Honda Motor Co Ltd | Pressure sensor |
| CN201811817U (en) * | 2010-09-07 | 2011-04-27 | 童纪国 | Pressure gauge |
| CN103218873A (en) * | 2013-03-28 | 2013-07-24 | 桂林市利通电子科技有限责任公司 | Wireless remote-transmission intelligent water meter |
-
2019
- 2019-01-15 CN CN201910035733.1A patent/CN109655196A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01165438U (en) * | 1988-05-12 | 1989-11-20 | ||
| CN2075780U (en) * | 1989-11-23 | 1991-04-24 | 龙在澄 | Remote pressure gauge with magnetic sensitive sensor |
| CN2088247U (en) * | 1990-07-05 | 1991-11-06 | 龙在澄 | Magnetic sensitive remote transmitting pressure gauge |
| JP2000214036A (en) * | 1999-01-28 | 2000-08-04 | Honda Motor Co Ltd | Pressure sensor |
| CN201811817U (en) * | 2010-09-07 | 2011-04-27 | 童纪国 | Pressure gauge |
| CN103218873A (en) * | 2013-03-28 | 2013-07-24 | 桂林市利通电子科技有限责任公司 | Wireless remote-transmission intelligent water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103076065B (en) | Laser measuring device for detecting liquid level of liquid metal | |
| CN203587281U (en) | Pointer type pressure gage batch calibration platform based on hydraulic system | |
| CN206146784U (en) | Tuning fork formula on -line densimeter | |
| CN109655196A (en) | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor | |
| CN202562533U (en) | A gas flow measuring device metering from zero | |
| CN201007666Y (en) | Mine slurry continuously autoweighing device | |
| CN201242483Y (en) | Capacitance pressure differential pressure transmitter with static pressure compensation | |
| CN208282874U (en) | A kind of gas turbine meter | |
| CN208075988U (en) | A kind of explosion-proof type magnetostriction liquidometer can measure multiple liquid levels | |
| CN201269745Y (en) | Intelligentized pipe laser length-measuring apparatus | |
| CN213481486U (en) | Flow controller for calibrating detection instrument | |
| CN114383675A (en) | Ultrasonic water meter with pressure detection function | |
| CN103292870A (en) | Intelligent dual-display explosion-proof floating ball liquid-level meter | |
| CN204085583U (en) | Portable orifice-plate measuring instrument | |
| CN201522477U (en) | Hydrogen quantitative detection device based on acoustic velocity measurement | |
| CN201897489U (en) | Mass flowmeter for integrated V-shaped cone | |
| CN202420618U (en) | Magnetostriction float level meter | |
| CN206095352U (en) | Differential pressure liquid level changer of measurable quantity layering density | |
| CN205561989U (en) | Prevent undulant level gauge | |
| CN205561812U (en) | Power assisted steering oil pump blade straightness verifying attachment that hangs down | |
| CN203908607U (en) | Coriolis mass flowmeter transmitter with dual paths of temperature acquisition | |
| CN202648761U (en) | Water-meter calibration table water-flow measuring instrument | |
| CN209570292U (en) | A kind of multilist parallel connection pressure test platform | |
| CN220357447U (en) | NB remote transmission ultrasonic water meter controller | |
| CN214490402U (en) | Automatic pressing tool for non-magnetic pointer of wet-type water meter |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |