CN206514914U - Ultrasonic wave contact type level meter - Google Patents
Ultrasonic wave contact type level meter Download PDFInfo
- Publication number
- CN206514914U CN206514914U CN201621362982.XU CN201621362982U CN206514914U CN 206514914 U CN206514914 U CN 206514914U CN 201621362982 U CN201621362982 U CN 201621362982U CN 206514914 U CN206514914 U CN 206514914U
- Authority
- CN
- China
- Prior art keywords
- measuring cylinder
- metal sealing
- ultrasonic
- contact type
- ultrasonic wave
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 239000000523 sample Substances 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 238000002604 ultrasonography Methods 0.000 claims abstract description 14
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 description 15
- 239000012071 phase Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Ultrasonic wave contact type level meter of the present utility model includes metal sealing measuring cylinder, lower communicating tube, upper communicating pipe, ultrasonic probe and ultrasound signal receipt instrument, the connection that metal sealing measuring cylinder bottom passes through lower communicating tube and containing liquid chamber, top was connected by upper communicating pipe with containing liquid chamber top, metal sealing measuring cylinder lateral wall is provided with ultrasonic probe, and the ultrasonic signal that sends of ultrasonic probe, perpendicular to the major axis of metal sealing measuring cylinder, ultrasonic probe is connected with ultrasound signal receipt instrument.The metal sealing measuring cylinder of linker structure can be formed with containing liquid chamber by setting to connect, the ultrasonic probe for laterally emitting ultrasonic wave is set outside it, using the acoustic impedance of air and the acoustic impedance difference of liquid away from larger principle, it is under being located at liquidus surface only or on liquidus surface that the ultrasonic probe, which can quickly be determined, and then can quickly determine the height of liquid level, show that data are more accurate, the handling before and after test are very convenient, have a wide range of application.
Description
Technical field
The utility model belongs to level gauging apparatus technical field, more specifically, is to be related to a kind of ultrasonic wave contact type
Liquid level gauge.
Background technology
At present, level gauging have become the necessary detection project in many production fields, the especially corrosivity such as sewage,
The liquid level of volatile liquid is measured, and is the important topic in the fields such as sewage disposal.
Existing level measuring instrument, main to be measured using direct contact type liquid level gauge, its installation process is more multiple
Miscellaneous, use occasion is limited.Also some contactless measuring instruments, such as ultrasonic level gage are also in progressively promoting.Ultrasound
The operation principle of ripple liquid level gauge is mainly using ultrasonic pulse-echo method measurement liquid level, and its composition to liquid, ultrasonic wave are at this
Spread speed in liquid is required for measuring in advance, but complicated and uneven when, this work is difficult to carry out；And
Because the ultrasonic pulse of transmitting has certain width so that back wave and transmitting in the segment region nearer apart from transducer
Ripple overlaps, it is impossible to recognize, it is impossible to measure its distance value, this region is referred to as measurement blind area, especially when liquid level is relatively low, blind area
Influence it is bigger, this two factors affects measurement the degree of accuracy, larger measurement error can be produced.
Utility model content
The purpose of this utility model is to provide a kind of ultrasonic wave contact type level meter, it is intended to which solution exists in the prior art
Liquid level gauge restricted application, the problem of measurement process is complicated.
To achieve the above object, the technical solution adopted in the utility model is：A kind of ultrasonic wave contact type level meter is provided,
Including：Metal sealing measuring cylinder, lower communicating tube, upper communicating pipe, at least two ultrasonic probes and ultrasound signal receipt instrument, institute
The bottom for stating metal sealing measuring cylinder passes through the connection of the lower communicating tube and containing liquid chamber, the top of the metal sealing measuring cylinder
Connected by the upper communicating pipe with the top of the containing liquid chamber, the metal sealing measuring cylinder lateral wall is provided with the ultrasound
Ripple is popped one's head in, and the ultrasonic signal that sends of the ultrasonic probe is perpendicular to the major axis of the metal sealing measuring cylinder, described super
Sonic probe is connected with the ultrasound signal receipt instrument, and ultrasonic probe described at least two is measured in the metal sealing
The major axis of cylinder orthographic projection region planar it is misaligned.
Further, major axis of the ultrasonic probe along the metal sealing measuring cylinder is distributed with least two.
Further, outer wall of the ultrasonic probe along the metal sealing measuring cylinder is distributed with least three in the shape of a spiral
Individual, the ultrasonic probe positioned at two ends is in the orthographic projection in the plane parallel to the metal sealing measuring cylinder bottom surface
Axle is in 110 ° -130 ° of obtuse angle in the plane.
Further, the ultrasonic probe has vertically set two, the ultrasonic probe can along with
Slided relative to the outer wall of the metal sealing measuring cylinder in the direction that the major axis of the metal sealing measuring cylinder is parallel.
Further, the outside of the metal sealing measuring cylinder is provided with leading screw, and the major axis of the leading screw and the metal are close
Seal measuring cylinder major axis it is parallel, be set with the leading screw match with the leading screw and can with the metal sealing measuring cylinder outside
The nut seat that wall is slidably connected, the nut seat can be connected with the ultrasonic probe, and the leading screw lower end is provided with lifting motor.
Further, the lifting motor can be slided along the radial direction of the metal sealing measuring cylinder.
Further, spacing of the adjacent ultrasonic probe on the long axis direction of the metal sealing measuring cylinder is
0.5mm-100mm。
Further, upper sealing valve door and lower sealing valve door are respectively equipped with the upper communicating pipe and the lower communicating tube.
Further, the metal sealing measuring cylinder includes metal cylinder and for sealing the metal cylinder upper opening
Sealing on cover.
Further, the cross-sectional area of the internal cavities of the metal cylinder is 25cm2-100cm2。
The beneficial effect for the ultrasonic wave contact type level meter that the utility model is provided is：Compared with prior art, this reality
With new type ultrasonic contact type level meter by the external metal sealing measuring cylinder outside containing liquid chamber, containing liquid chamber is surveyed with metal sealing
Liquid level in the structure of graduated cylinder formation linker, containing liquid chamber is concordant with the liquid level in metal measuring cylinder, outside metal measuring cylinder
The ultrasonic probe for laterally emitting ultrasonic wave is set, using the acoustic impedance of air and the acoustic impedance difference of liquid away from larger principle,
Ultrasonic wave passes through the reflected signal gap received after metallic walls very big, therefore, it is possible to quickly determine that the ultrasonic probe is position
In liquidus surface is only lower or liquidus surface on, determine last be liquid Space and first be gas-phase space probe position
Put, and then can quickly determine the height of liquid level, the data drawn are also relatively more accurate, and due to being contactless design, survey
Handling before and after examination are very convenient, have a wide range of application.
Brief description of the drawings
Fig. 1 is the structural representation for the ultrasonic wave contact type level meter that the utility model embodiment one is provided；
Fig. 2 is the structural representation for the ultrasonic wave contact type level meter that the utility model embodiment two is provided；
Fig. 3 is fundamental diagram one of the present utility model；
Fig. 4 is fundamental diagram one of the present utility model.
In figure：1st, metal sealing measuring cylinder；2nd, lower communicating tube；3rd, upper communicating pipe；4th, ultrasonic probe；5th, ultrasonic signal
Receiving instrument；6th, containing liquid chamber；7th, leading screw；8th, lifting motor；9th, upper sealing valve door；10th, lower sealing valve door；11st, air；12nd, liquid.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
Also referring to Fig. 1 and Fig. 2, now the ultrasonic wave contact type level meter that the utility model is provided is illustrated.Institute
State ultrasonic wave contact type level meter, including metal sealing measuring cylinder 1, lower communicating tube 2, upper communicating pipe 3, the spy of at least two ultrasonic waves
First 4 and ultrasound signal receipt instrument 5, the bottom of metal sealing measuring cylinder 1 passes through the connection of lower communicating tube 2 and containing liquid chamber 6, metal
The top of plugging meter cylinder 1 was connected by upper communicating pipe 3 with the top of 6 containing liquid chambers, and the lateral wall of metal sealing measuring cylinder 1 is provided with
Ultrasonic probe 4, and the ultrasonic signal that ultrasonic probe 4 is sent is perpendicular to the major axis of metal sealing measuring cylinder 1, ultrasonic wave spy
First 4 are connected with ultrasound signal receipt instrument 5, and at least two ultrasonic probes 4 are put down where the major axis of metal sealing measuring cylinder 1
Orthographic projection region in face is misaligned.
When specifically used, its principle refers to Fig. 3 and Fig. 4, and ultrasonic probe 4 sends ultrasonic wave, and ultrasonic wave passes through technology
The side wall of plugging meter cylinder 1, if inside the position being liquid Space, the incoming liquid level of ultrasonic wave, then incoming offside side wall, due to
Air-borne sound impedance ratio metal and liquid are much larger, and ultrasonic wave exists in measuring cylinder/Air Interface reflection, ultrasound signal receipt instrument 5
Ultrasonic signal is remotely received away from beginning ripple.If being gas-phase space inside the position, because the acoustic impedance of air compares metal
Acoustic impedance it is much larger, pressure reflection ratio tends to " -1 ", and transmissivity tends to " 0 ", and acoustic pressure is almost totally reflected, ultrasonic wave measurement
Cylinder/Air Interface reflects, and ultrasound signal receipt instrument is more nearby receiving ultrasonic signal away from beginning ripple or is being submerged in beginning ripple
In.It is possible thereby to which it is liquid phase or gas-phase space inside the measurement position to judge.
The ultrasonic wave contact type level meter that the utility model is provided, compared with prior art, by setting by liquid storage
In external metal sealing measuring cylinder 1 in storehouse 6, the structure of containing liquid chamber 6 and the formation linker of metal sealing measuring cylinder 1, containing liquid chamber 6
A small amount of liquid is flowed in metal sealing measuring cylinder 1, and liquid level reaches concordant with the liquid level in metal measuring cylinder 1, is measured in metal
The outside of cylinder 1 sets the ultrasonic probe 4 for laterally emitting ultrasonic wave, using the acoustic impedance of air and the acoustic impedance difference of liquid away from larger
Principle, ultrasonic wave passes through the reflected signal gap that receives after metallic walls very big, therefore, it is possible to quickly determine the ultrasonic wave
Probe be located at that liquidus surface is only lower or liquidus surface on, determine that last is liquid Space and first is gas-phase space
The position of probe, and then the height of liquid level can be quickly determined, the data drawn are also relatively more accurate, and due to being contactless
Design, the handling before and after test are very convenient, and safety in utilization more preferably, has a wide range of application.
Further, also referring to Fig. 1, a kind of tool of the ultrasonic wave contact type level meter provided as the utility model
Body embodiment, major axis of the ultrasonic probe 4 along metal sealing measuring cylinder 1 is distributed with least two.Feelings are measured according to actual
Condition and required measurement accuracy select the setting quantity and spacing of ultrasonic probe 4, the distributed architecture most simple, intuitive, measurement essence
Degree is generally capable of up to actual demand.
Further, not shown in figure, one kind of the ultrasonic wave contact type level meter provided as the utility model is specific
Embodiment, outer wall of the ultrasonic probe 4 along metal sealing measuring cylinder 1 is distributed with least three in the shape of a spiral, positioned at two ends
The axis of orthographic projection of the ultrasonic probe 4 in the plane parallel to the bottom surface of metal sealing measuring cylinder 1 in the plane in 110 °-
130 ° of obtuse angle.This distributed architecture can provide the measurement data of multi-angle, convenient further to improve measurement error.
It is preferably located at positive throwing of the ultrasonic probe 4 at two ends in the plane parallel to the bottom surface of metal sealing measuring cylinder 1
The axis of shadow is in 120 ° of obtuse angle in the plane.
The assembling of above two ultrasonic probe 4, can be filled by the position adjustment of metal sealing measuring cylinder 1 into suitable in advance
The position matched somebody with somebody, then the assembling popped one's head in, then connect metal sealing measuring cylinder 1 with containing liquid chamber 6, then by ultrasonic probe 4
It is connected with ultrasound signal receipt instrument 5, measurement can be proceeded by by opening upper sealing valve door 9 and lower sealing valve door 10.The assembling
Mode can largely improve the security of efficiency of assembling and work, and staff need not ascend a height and be assembled.
Further, refering to Fig. 2, a kind of specific implementation of the ultrasonic wave contact type level meter provided as the utility model
Mode, ultrasonic probe 4 has two vertically set, and ultrasonic probe 4 can be along the length with metal sealing measuring cylinder 1
Slided relative to the outer wall of metal sealing measuring cylinder 1 in the parallel direction of axle.In use, two ultrasonic probes 4 are navigated into one
Individual relatively low initial position first carries out exploratory test, then gradually rises position, is often increased to a position and just carries out one
Secondary measurement, until the probe determination data for causing top is gas-phase space, the probe of bottom is determined as liquid Space, so, leads to
Same test effect can also be reached by crossing the ultrasonic probe 4 of negligible amounts, reduce testing cost.
Further, referring to Fig. 2, a kind of specific reality of the ultrasonic wave contact type level meter provided as the utility model
Mode is applied, to enable ultrasonic probe 4 efficiently to lift, the outside of metal sealing measuring cylinder 1 is provided with leading screw 7, the length of leading screw 7
Axle is parallel with the major axis of metal sealing measuring cylinder 1, is set with and is matched with leading screw 7 and can be with metal sealing measuring cylinder 1 on leading screw 7
The nut seat that outer wall is slidably connected, nut seat can be connected with ultrasonic probe 4, and the lower end of leading screw 7 is provided with lifting motor 8.Leading screw liter
Drop is simple in construction, and the continuity of lifting action is good, makes the lifting distance of ultrasonic probe 4 obtain more accurately regulating and controlling, can
The precision of measurement is effectively ensured.
Further, not shown in figure, one kind of the ultrasonic wave contact type level meter provided as the utility model is specific
Embodiment, lifting motor 8 can be slided along the radial direction of metal sealing measuring cylinder 1.Because ultrasonic probe 4 needs and metal
The outer wall of plugging meter cylinder 1, which is in close contact, can be only achieved preferable measurement effect, the foregoing equal thing of liftable ultrasonic probe 4
First closely abutted with the outer wall of measuring cylinder, but directly lifting is easily ground away probe, therefore, when to be lifted, shifting can be passed through in advance
Move lifting motor 8 and ultrasonic probe 4 is departed slightly from the outer wall of measuring cylinder, reach after specified location, then close to measuring cylinder
Outer wall, can effectively reduce the damaged condition of probe.
Further, not shown in figure, one kind of the ultrasonic wave contact type level meter provided as the utility model is specific
Embodiment, the spacing of adjacent ultrasonic probe 4 on the long axis direction of metal sealing measuring cylinder 1 is 0.5mm-100mm.Should
Spacing can be selected according to the demand of Surveying Actual Precision, and required precision is high, and it is smaller that damp spacing is set, and required precision is low, then
It is larger that spacing is set.
Further, Fig. 1 to Fig. 2 is referred to, one kind of the ultrasonic wave contact type level meter provided as the utility model
Embodiment, was respectively equipped with upper sealing valve door 9 and lower sealing valve door 10 on upper communicating pipe 3 and lower communicating tube 2.It is close in metal
When envelope measuring cylinder 1 is connected with containing liquid chamber 6, upper communicating pipe 3 and lower communicating tube 2 should be at closing shape when being not connected with good
State, prevents liquid leakage from polluting environment, and can regulate and control metal sealing by the keying of upper sealing valve door 9 and lower sealing valve door 10 surveys
The connected state of graduated cylinder 1, improves the security used.
Further, not shown in figure, one kind of the ultrasonic wave contact type level meter provided as the utility model is specific
Embodiment, metal sealing measuring cylinder 1 includes metal cylinder and covered in the sealing of sealing metal cylinder upper opening.
Further, not shown in figure, one kind of the ultrasonic wave contact type level meter provided as the utility model is specific
Embodiment, liquid during in order to try one's best in containing liquid chamber 6 is kept should be as far as possible in original height level, metal measuring cylinder 1
Few receiving liquid, but the height of measuring cylinder should be maintained at higher level, therefore the lumenal cross-section of measuring cylinder is controlled
System, the cross-sectional area of the internal cavities of metal cylinder is 25cm2-100cm2。
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. ultrasonic wave contact type level meter, it is characterised in that：Including metal sealing measuring cylinder, lower communicating tube, upper communicating pipe, at least
Two ultrasonic probes and ultrasound signal receipt instrument, the bottom of the metal sealing measuring cylinder pass through the lower communicating tube and storage
The connection in liquid storehouse, the top of the metal sealing measuring cylinder was connected by the upper communicating pipe with the top of the containing liquid chamber, institute
Metal sealing measuring cylinder lateral wall is stated to hang down provided with the ultrasonic probe, and the ultrasonic signal that the ultrasonic probe is sent
Directly in the major axis of the metal sealing measuring cylinder, the ultrasonic probe is connected with the ultrasound signal receipt instrument, at least
Two ultrasonic probes the metal sealing measuring cylinder major axis orthographic projection region planar it is misaligned.
2. ultrasonic wave contact type level meter as claimed in claim 1, it is characterised in that：The ultrasonic probe is along the metal
The major axis of plugging meter cylinder is distributed with least two.
3. ultrasonic wave contact type level meter as claimed in claim 1, it is characterised in that：The ultrasonic probe is along the metal
The outer wall of plugging meter cylinder is distributed with least three in the shape of a spiral, and the ultrasonic probe positioned at two ends is parallel to the gold
The axis for belonging to the orthographic projection in the plane of plugging meter cylinder bottom surface is in 110 ° -130 ° of obtuse angle in the plane.
4. ultrasonic wave contact type level meter as claimed in claim 1, it is characterised in that：The ultrasonic probe has along vertical
Two of direction setting, the ultrasonic probe can be along the direction parallel with the major axis of the metal sealing measuring cylinder relative to institute
The outer wall for stating metal sealing measuring cylinder is slided.
5. ultrasonic wave contact type level meter as claimed in claim 4, it is characterised in that：The outside of the metal sealing measuring cylinder
Provided with leading screw, the major axis of the leading screw is parallel with the major axis of the metal sealing measuring cylinder, be set with the leading screw with it is described
The nut seat that leading screw is matched and can be slidably connected with the outer wall of the metal sealing measuring cylinder, the nut seat can be with the ultrasound
Ripple probe connection, the leading screw lower end is provided with lifting motor.
6. ultrasonic wave contact type level meter as claimed in claim 5, it is characterised in that：The lifting motor can be along the metal
The radial direction of plugging meter cylinder is slided.
7. the ultrasonic wave contact type level meter as described in any one in claim 2-4, it is characterised in that：Adjacent is described super
Spacing of the sonic probe on the long axis direction of the metal sealing measuring cylinder is 0.5mm-100mm.
8. ultrasonic wave contact type level meter as claimed in claim 1, it is characterised in that：The upper communicating pipe and the lower connection
Upper sealing valve door and lower sealing valve door are respectively equipped with pipe.
9. ultrasonic wave contact type level meter as claimed in claim 1, it is characterised in that：The metal sealing measuring cylinder includes gold
Belong to and being covered in cylinder and sealing for sealing the metal cylinder upper opening.
10. ultrasonic wave contact type level meter as claimed in claim 9, it is characterised in that：The internal cavities of the metal cylinder
Cross-sectional area be 25cm2-100cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362982.XU CN206514914U (en) | 2016-12-12 | 2016-12-12 | Ultrasonic wave contact type level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362982.XU CN206514914U (en) | 2016-12-12 | 2016-12-12 | Ultrasonic wave contact type level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514914U true CN206514914U (en) | 2017-09-22 |
Family
ID=59863391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362982.XU Expired - Fee Related CN206514914U (en) | 2016-12-12 | 2016-12-12 | Ultrasonic wave contact type level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206514914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613717A (en) * | 2018-05-14 | 2018-10-02 | 蚌埠市华威电子科技有限公司 | A kind of accurate radiator water level sensor |
| CN113970594A (en) * | 2021-10-26 | 2022-01-25 | 北京锐达仪表有限公司 | Ultrasonic array energy synthesis probe interface measuring system |
-
2016
- 2016-12-12 CN CN201621362982.XU patent/CN206514914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613717A (en) * | 2018-05-14 | 2018-10-02 | 蚌埠市华威电子科技有限公司 | A kind of accurate radiator water level sensor |
| CN113970594A (en) * | 2021-10-26 | 2022-01-25 | 北京锐达仪表有限公司 | Ultrasonic array energy synthesis probe interface measuring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103499643B (en) | The quantitative testing device of pumping of prostressed duct plumpness situation and method | |
| CN104360046A (en) | Comprehensive geophysical-prospecting combined diagnosis method for hidden danger inside wharf concrete structure | |
| CN105738028A (en) | Measurement method for fluid pressure in non-intrusive pipeline | |
| CN206514914U (en) | Ultrasonic wave contact type level meter | |
| CN103616102B (en) | A kind of ultrasonic leakage compressional wave sensing device detected for sheet metal residual stress distribution | |
| CN106197370A (en) | A kind of device and method of static level level measuring based on ultrasonic ranging principle | |
| CN108709605A (en) | Outer ultrasonic liquid level detecting system based on multiecho detection | |
| CN100359130C (en) | Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete | |
| CN108489855B (en) | Temperature-controllable sound-absorbing material flow resistance measuring instrument | |
| CN206430787U (en) | Groundwater level measuring system | |
| CN208206239U (en) | A kind of ultrasonic water level measuring arrangement | |
| CN113073953A (en) | Drilling fluid outlet flow correction method | |
| CN105403289A (en) | Wine pot liquid level measuring apparatus | |
| CN210487015U (en) | Circulating tank mud liquid level monitoring direct reading appearance | |
| CN105784070A (en) | Method and platform for testing air-medium ultrasonic level gauge | |
| CN110006995A (en) | For the non-homogeneous metal thick plate welding-seam phased array supersonic detection method of the gradually changeable velocity of sound | |
| CN203396460U (en) | Flowmeter Calibration Device | |
| CN206683724U (en) | A kind of magnetic turnover panel liquid level gauge integrated with guided wave radar | |
| CN207066372U (en) | A kind of supersonic detection device for being used for thin-wall steel tube layered weighting and thickness measuring | |
| CN203274847U (en) | Self-recording type simple water level measuring well of channels | |
| CN108871152A (en) | A kind of internal diameter of the pipeline measuring device and method | |
| CN106768194A (en) | Groundwater level measuring system and method | |
| CN108168422B (en) | Underground continuous wall perpendicularity detection device and detection method thereof | |
| CN2690851Y (en) | Insert type supersonic flower and heat quantity meter | |
| CN209264639U (en) | A kind of thin-walled austenite pipe ring seam phased array detection positioning calibration block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |