CN112748238A - Portable aggregate moisture content real-time detector - Google Patents

Portable aggregate moisture content real-time detector Download PDF

Info

Publication number
CN112748238A
CN112748238A CN202011549062.XA CN202011549062A CN112748238A CN 112748238 A CN112748238 A CN 112748238A CN 202011549062 A CN202011549062 A CN 202011549062A CN 112748238 A CN112748238 A CN 112748238A
Authority
CN
China
Prior art keywords
moisture content
case
portable
time detector
real
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
Application number
CN202011549062.XA
Other languages
Chinese (zh)
Inventor
刘欣宇
陈定文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Aishang Zhitong Information Technology Co ltd
Original Assignee
Zhongshan Aishang Zhitong Information Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhongshan Aishang Zhitong Information Technology Co ltd filed Critical Zhongshan Aishang Zhitong Information Technology Co ltd
Priority to CN202011549062.XA priority Critical patent/CN112748238A/en
Publication of CN112748238A publication Critical patent/CN112748238A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383Concrete or cement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention discloses a portable aggregate moisture content real-time detector which comprises a case, wherein the case is provided with an industrial control all-in-one machine and a moisture content sensor, the industrial control all-in-one machine is provided with a human-computer interaction display screen, a central control unit and a storage unit for storing moisture content data curves of a plurality of different materials, the moisture content sensor, the human-computer interaction display screen and the storage unit are all connected with the central control unit, the case is provided with a storage bin for placing the materials, the bottom surface or the inner side surface of the storage bin is provided with a detection port, and a probe of the moisture content sensor is. By an automatic detection method, the automatic monitoring of the water content is realized, the manual operation is effectively reduced, the labor intensity of workers is reduced, and the efficiency of mud content detection is improved.

Description

Portable aggregate moisture content real-time detector
Technical Field
The invention relates to the field of concrete detection devices, in particular to a portable aggregate moisture content real-time detector.
Background
The current technical pain points are: first, present grit moisture content check out test set adopts automatic drying's detection step mostly, and the check-out time overlength is difficult to guide production. Second, in the conventional measurement of a material using a moisture content sensor, the material is often directly measured, but the particle size and properties of the material greatly affect the measurement result. Therefore, it takes time to perform calibration when the measurement material is replaced. In actual engineering, the replacement of materials is very frequent, and the existing technology is difficult to meet the real-time detection in the engineering environment. Third, present moisture content check out test set adopts fixed the installation in hopper below or conveyer belt top mostly, uses for a long time and can lead to moisture content sensor surface wearing and tearing or damage to material moisture content detection environment is outdoor a bit at present, for example road bridge engineering, ocean engineering, consequently need a portable equipment solution moisture content survey's of a section problem.
Although the invention patent of China (201911306426.9) discloses a concrete sand water content detector, the water content is automatically detected by an automatic detection device, a long time is needed to obtain a detection result in the drying process, and the production cannot be rapidly and effectively guided. And the solar energy collector cannot be used in some outdoor environments without high-power supplies. Therefore, the technical requirements for detecting the water content under the current production environment cannot be met. Although the Chinese patent of invention (202010858669.X) optimizes the moisture content detection by the thickness coefficient of the aggregate, the device has limited application, can only be installed on a conveyor belt, and cannot meet more detection environments.
Disclosure of Invention
In view of this, the present invention provides a portable aggregate moisture content real-time detector, which has the effect of improving detection efficiency and accuracy.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides a portable moisture content real-time detection instrument that gathers materials, includes a quick-witted case, quick-witted case be provided with industry control all-in-one and moisture content sensor, industry control all-in-one have human-computer interaction display screen, well accuse unit and the storage have the moisture content data curve's of a plurality of different materials memory cell, moisture content sensor, human-computer interaction display screen, memory cell all with well accuse unit connect, quick-witted case be provided with the feed bin that can place the material, the bottom surface or the medial surface of feed bin are provided with the detection mouth, moisture content sensor's probe set up in detection mouth department.
Preferably, the machine case is further provided with a visual identification device capable of identifying the type of the materials in the bin.
Preferably, the middle part of quick-witted case be provided with the riser, the riser will the inner space of quick-witted case separates into left chamber and right chamber, the intracavity is provided with the diaphragm that separates into two parts from top to bottom with it in the right side, space on the diaphragm constitute the feed bin, the space below the diaphragm constitutes a probe installation cavity, the detection mouth set up in on the diaphragm, the left part of moisture content sensor be located the left intracavity, the probe of moisture content sensor right part pass the riser and be located in the probe installation cavity.
Preferably, the upper surface of the probe of the moisture content sensor is lower than the upper surface of the transverse plate, so that a groove capable of containing the material is formed at the probe opening.
Preferably, the visual recognition device comprises an optical lens located in the left cavity, and a shooting window corresponding to the optical lens is arranged on the vertical plate.
Preferably, a protective shell surrounding the water content sensor is arranged in the left cavity.
Preferably, a handle convenient for carrying is arranged on one side of the case.
Preferably, a power supply connected with the industrial control all-in-one machine is arranged in the case, and a switch connected with the industrial control all-in-one machine is arranged on the outer side wall of the case.
Preferably, a discharge opening is formed in the side wall of the storage bin, and a discharge plate capable of opening and closing the discharge opening is arranged at the discharge opening.
Preferably, a first clamping groove capable of being clamped with the upper edge of the side wall of the storage bin when the discharge opening is closed is formed in the upper edge of the discharge plate, and a second clamping groove capable of being clamped with the lower edge of the discharge plate is formed below the discharge opening.
The invention has the beneficial effects that:
1. by an automatic detection method, the automatic monitoring of the water content is realized, the manual operation is effectively reduced, the labor intensity of workers is reduced, and the efficiency of mud content detection is improved.
2. The material attribute is judged through the optical lens and the database of the storage unit, and the data curve is called, so that the water content determination accuracy can be effectively improved.
3. Adopt the riser to separate into left chamber and right chamber with the inner space of quick-witted case, adopt the diaphragm to separate into feed bin and probe installation cavity with right chamber, the left part of moisture content sensor is located left intracavity, and the probe of moisture content sensor right part is located probe installation cavity. The case adopts the structure, is very simple and compact, has reasonable layout, can reduce the volume of the case as much as possible under the condition of ensuring that the capacity of the case meets the requirement, and is convenient to carry.
4. The upper surface of moisture content sensor's probe is less than the upper surface of diaphragm so that the recess that can accept the material is formed to probe mouthful department, and when the material that awaits measuring is less, can concentrate the material, make the material only cover above-mentioned probe mouthful department the recess can, can't cover moisture content sensor's probe and lead to measuring inaccurate when avoiding the material less.
5. Through portable mechanical design and low-power consumption electronic components, the moisture content of the material in severe environments such as the outdoor environment can be determined.
6. The moisture content can be detected quickly and accurately by adopting the contact type moisture content sensor to measure the material.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the discharge baffle removed from the enclosure;
fig. 4 is a partially enlarged view of a portion a of fig. 3;
fig. 5 is an exploded view of the chassis.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.
Referring to fig. 1 to 5, an embodiment of the invention provides a portable aggregate moisture content real-time detector, which comprises a case 1, wherein the case 1 is provided with an industrial control all-in-one machine 2 and a moisture content sensor 3, the industrial control all-in-one machine 2 is provided with a human-computer interaction display screen, a central control unit and a storage unit for storing moisture content data curves of a plurality of different materials, the moisture content sensor 3, the human-computer interaction display screen and the storage unit are all connected with the central control unit, the case 1 is provided with a storage bin 101 capable of containing the materials, a detection port 102 is arranged on the bottom surface or the inner side surface of the storage bin 101, and a probe 31 of the moisture content sensor 3.
The case 1 is composed of an upper case 11 and a lower case 12, and the upper case 11 and the lower case 12 are connected by bolts.
As a further improvement of the present invention, the machine case 1 is further provided with a visual recognition device capable of recognizing the type of the material in the storage bin 101, and the visual recognition device is connected with the central control unit. The visual identification device comprises an optical lens 4, when the industrial control all-in-one machine 2 and the moisture content sensor 3 are in working states, the type of materials in the storage bin 101 is identified through photographing, the central control unit calls a database in the storage unit, a moisture content data curve of the same materials is called to the central control unit of the industrial control all-in-one machine 2, and the central control unit controls the moisture content sensor 3 to measure the materials in the storage bin 101.
As a further improvement of the invention, a vertical plate 103 is arranged in the middle of the case 1, the vertical plate 103 divides the internal space of the case 1 into a left cavity 104 and a right cavity 105, a transverse plate 106 which divides the right cavity 105 into an upper part and a lower part is arranged in the right cavity 105, the space above the transverse plate 106 forms a storage bin 101, the space below the transverse plate 106 forms a probe mounting cavity 107, a detection port 102 is arranged in the middle of the transverse plate 106, the left part of the water content sensor 3 is positioned in the left cavity 104, and the probe 31 on the right part of the water content sensor 3 penetrates through the vertical plate 103 and is positioned in the probe mounting cavity 107. The case 1 has such a structure, is very simple and compact, is reasonable in layout, can reduce the volume of the case 1 as much as possible under the condition that the capacity of the case 1 meets the requirements, and is convenient to carry.
In addition, by adopting the technical scheme, the problem that the thickness of the material layer measured by the contact sensor is not uniform to cause the misalignment of the measurement result in the traditional scheme is avoided.
Further, a handle 5 convenient for carrying is arranged on one side of the case 1. A power supply 6 connected with the industrial control all-in-one machine 2 is arranged in the left cavity 104 of the case 1, and a switch 7 connected with the industrial control all-in-one machine 2 is arranged on the outer side wall of the case 1.
As a further improvement of the invention, the upper surface of the probe 31 of the water content sensor 3 is lower than the upper surface of the transverse plate 106, so that a groove capable of containing the material is formed at the detection port 102. The gap between the probe 31 of the water content sensor 3 and the transverse plate 106 is sealed by glass cement, when more materials to be measured exist, the materials can cover the bottom of the storage bin 101, and the water content of the materials is easier to measure; when the material to be measured is less, the material can be concentrated, the material only covers the groove at the detection port 102, and inaccurate measurement caused by the fact that the probe 31 of the water content sensor 3 cannot be covered when the material is less is avoided.
Preferably, the optical lens 4 is located in the left cavity 104, and the riser 103 is provided with a shooting window corresponding to the optical lens 4. The shooting window can be a through hole arranged on the vertical plate 103, and also can be a transparent window arranged on the vertical plate 103.
Further, a protective case 108 surrounding the moisture content sensor 3 is provided in the left chamber 104.
Further, a discharge opening 109 is formed in a side wall of the hopper 101, and a discharge plate 8 capable of opening and closing the discharge opening 109 is provided at the discharge opening 109. Specifically, the upper edge of the discharging plate 8 is provided with a first locking groove 81 capable of being locked with the upper edge of the side wall of the bin 101 when the discharging opening 109 is closed, and a second locking groove 110 capable of being locked with the lower edge of the discharging plate 8 is arranged below the discharging opening 109. Preferably, the second card slot 110 is disposed on an outer sidewall of the chassis 1. After the determination is finished, the stripper plate 8 is opened, so that the materials can be cleaned conveniently.
Further, the optical lens can be taken by a photograph, and the photograph is divided into a macroscopic material appearance and a microscopic material appearance. By adopting the technical scheme, the shape picture of the material is matched with the material in the database, when the matching degree reaches more than 90%, the originally calibrated data curve of the material is led into the central control system, and the central control unit guides the water content sensor to measure the material, so that the measuring accuracy of the material can be effectively improved.
In the invention, the total power of all electronic elements (the industrial control all-in-one machine, the optical lens and the water content sensor) is not more than 500W. The total weight of the equipment is not more than 8 kg. When the moisture content is measured under extreme outdoor conditions, the use of a detector can be met in the form of an external mobile power supply, and the portable moisture content measuring instrument is easy to carry.
Example 1
Adopt 1kg quartz sand as the sample that awaits measuring, click "start" back on the man-machine interaction display screen, put into the sample that awaits measuring to feed bin 101, optical lens 4 starts, discerns quartz sand, according to the database of the memory cell of industrial control all-in-one 2, the moisture content data curve y of calling the same material is 0.15x +1 to the hollow unit of industrial control all-in-one 2, hollow unit control moisture content sensor 3 obtains stable calibration value 10 to the material survey in the feed bin 101, moisture content 2.5. And after the determination is finished, opening the discharging plate 8 and cleaning the quartz sand.
Example 2
Adopt 1kg river sand sample that awaits measuring, click "start" back on the man-machine interaction display screen, put into sample to be measured to feed bin 101, optical lens 4 starts, discerns quartz sand, according to the database of industrial control all-in-one machine 2's memory cell, the moisture content data curve y of calling the same material is 0.25x +1 to the hollow unit to industrial control all-in-one machine 2, hollow unit control moisture content sensor 3 obtains stable calibration value 8, moisture content 3 to the material survey in the feed bin 101. And after the measurement is finished, opening the discharging plate 8 and cleaning river sand.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims (10)

1. The utility model provides a portable moisture content real-time detection instrument that gathers materials, its characterized in that includes a quick-witted case (1), quick-witted case (1) be provided with industrial control all-in-one (2) and moisture content sensor (3), industrial control all-in-one (2) have human-computer interaction display screen, well accuse unit and the storage have the moisture content data curve's of a plurality of different materials memory cell, moisture content sensor (3), human-computer interaction display screen, memory cell all with well accuse unit connect, quick-witted case (1) be provided with feed bin (101) that can place the material, the bottom surface or the medial surface of feed bin (101) are provided with detection mouth (102), probe (31) of moisture content sensor (3) set up in detection mouth (102) department.
2. The portable aggregate moisture content real-time detector according to claim 1, wherein the case (1) is further provided with a visual recognition device capable of recognizing the type of the materials in the bin (101).
3. The real-time detection instrument of a portable moisture content that gathers materials of claim 2, characterized in that, the middle part of quick-witted case (1) be provided with riser (103), riser (103) with the inner space of quick-witted case (1) separates into left chamber (104) and right chamber (105), be provided with in right chamber (105) and separate into two parts about it horizontal plate (106), the space above horizontal plate (106) constitutes feed bin (101), the space below horizontal plate (106) constitutes a probe installation cavity (107), detection mouth (102) set up in on horizontal plate (106), the left part of moisture content sensor (3) be located left chamber (104) in, probe (31) the right part of moisture content sensor (3) pass riser (103) and be located in probe installation cavity (107).
4. The portable aggregate moisture content real-time detector according to claim 3, wherein the upper surface of the probe (31) of the moisture content sensor (3) is lower than the upper surface of the transverse plate (106) so that a groove capable of containing materials is formed at the detection port (102).
5. The portable aggregate water content real-time detector according to claim 3, wherein the visual recognition device comprises an optical lens (4) positioned in the left cavity (104), and a shooting window corresponding to the optical lens (4) is arranged on the vertical plate (103).
6. A portable aggregate moisture content real-time detector according to claim 3, wherein a protective casing (108) surrounding the moisture content sensor (3) is arranged in the left cavity (104).
7. The portable aggregate moisture content real-time detector according to claim 1, wherein a handle (5) for facilitating hand-carrying is arranged on one side of the case (1).
8. The portable aggregate moisture content real-time detector according to claim 1, wherein a power supply (6) connected with the industrial control all-in-one machine (2) is arranged in the case (1), and a switch (7) connected with the industrial control all-in-one machine (2) is arranged on the outer side wall of the case (1).
9. The portable aggregate moisture content real-time detector according to claim 1, wherein a discharge opening (109) is formed in a side wall of the storage bin (101), and a discharge plate (8) capable of opening and closing the discharge opening (109) is arranged at the discharge opening (109).
10. The portable aggregate moisture content real-time detector according to claim 9, wherein a first clamping groove (81) capable of being clamped with the upper edge of the side wall of the storage bin (101) when the discharge opening (109) is closed is arranged on the upper edge of the discharge plate (8), and a second clamping groove (110) capable of being clamped with the lower edge of the discharge plate (8) is arranged below the discharge opening (109).
CN202011549062.XA 2020-12-24 2020-12-24 Portable aggregate moisture content real-time detector Pending CN112748238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011549062.XA CN112748238A (en) 2020-12-24 2020-12-24 Portable aggregate moisture content real-time detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011549062.XA CN112748238A (en) 2020-12-24 2020-12-24 Portable aggregate moisture content real-time detector

Publications (1)

Publication Number Publication Date
CN112748238A true CN112748238A (en) 2021-05-04

Family

ID=75647482

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011549062.XA Pending CN112748238A (en) 2020-12-24 2020-12-24 Portable aggregate moisture content real-time detector

Country Status (1)

Country Link
CN (1) CN112748238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117761113A (en) * 2023-12-22 2024-03-26 四川蜀道建筑科技有限公司 Online monitoring device and method for water content of sand

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000121578A (en) * 1998-10-20 2000-04-28 Syst Sogo Kaihatsu Kk Apparatus and method for calibration of moisture meter
CN103048257A (en) * 2012-12-21 2013-04-17 华侨大学 Sandy soil type identification and particle component analysis device
CN107727540A (en) * 2017-10-27 2018-02-23 华侨大学 A kind of Machine-made Sand on-line measuring device and online test method
CN108663340A (en) * 2018-07-31 2018-10-16 甘肃畅陇公路养护技术研究院有限公司 A kind of measurement method and system of sand moisture content
CN208334360U (en) * 2018-04-11 2019-01-04 河南广瑞汽车部件股份有限公司 A kind of Portable rapid detector for humidity of foundry sand
CN109856029A (en) * 2019-02-01 2019-06-07 中海石油(中国)有限公司上海分公司 A kind of porosity evaluation method based on image analysis
CN110954434A (en) * 2019-12-18 2020-04-03 中建四局深圳实业有限公司 Sand moisture content detector for concrete
CN111521638A (en) * 2020-06-10 2020-08-11 长江重庆航道工程局 Water content detection method and device suitable for various solid substances
CN111833327A (en) * 2020-07-14 2020-10-27 中国建筑第二工程局有限公司 Sandstone detection method based on image recognition
CN212008362U (en) * 2020-03-19 2020-11-24 长江重庆航道工程局 Microwave transmission type moisture content detection device for various solid materials
CN112014550A (en) * 2020-08-24 2020-12-01 湖南中联重科混凝土机械站类设备有限公司 Method and device for detecting moisture content of aggregate and machine-readable storage medium

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000121578A (en) * 1998-10-20 2000-04-28 Syst Sogo Kaihatsu Kk Apparatus and method for calibration of moisture meter
CN103048257A (en) * 2012-12-21 2013-04-17 华侨大学 Sandy soil type identification and particle component analysis device
CN107727540A (en) * 2017-10-27 2018-02-23 华侨大学 A kind of Machine-made Sand on-line measuring device and online test method
CN208334360U (en) * 2018-04-11 2019-01-04 河南广瑞汽车部件股份有限公司 A kind of Portable rapid detector for humidity of foundry sand
CN108663340A (en) * 2018-07-31 2018-10-16 甘肃畅陇公路养护技术研究院有限公司 A kind of measurement method and system of sand moisture content
CN109856029A (en) * 2019-02-01 2019-06-07 中海石油(中国)有限公司上海分公司 A kind of porosity evaluation method based on image analysis
CN110954434A (en) * 2019-12-18 2020-04-03 中建四局深圳实业有限公司 Sand moisture content detector for concrete
CN212008362U (en) * 2020-03-19 2020-11-24 长江重庆航道工程局 Microwave transmission type moisture content detection device for various solid materials
CN111521638A (en) * 2020-06-10 2020-08-11 长江重庆航道工程局 Water content detection method and device suitable for various solid substances
CN111833327A (en) * 2020-07-14 2020-10-27 中国建筑第二工程局有限公司 Sandstone detection method based on image recognition
CN112014550A (en) * 2020-08-24 2020-12-01 湖南中联重科混凝土机械站类设备有限公司 Method and device for detecting moisture content of aggregate and machine-readable storage medium

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
廖超等: "混凝土搅拌站砂石含水率在线检测技术研究", 《建设机械技术与管理》 *
杨旭杰等: "多种类固态物料含水率检测方法综述", 《科技风》 *
郭萍等: "近红外光谱法快速测定石英砂含水率", 《兰州工业学院学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117761113A (en) * 2023-12-22 2024-03-26 四川蜀道建筑科技有限公司 Online monitoring device and method for water content of sand

Similar Documents

Publication Publication Date Title
CN112748238A (en) Portable aggregate moisture content real-time detector
CN207623117U (en) A kind of pedotheque producing device
CN109407184A (en) Tipping bucket rain gauge modification method based on bucket parameter and raininess
CN106950103A (en) A kind of air entrained concrete idiosome strength meter
CN208860771U (en) A kind of moisture Volume-weight Determination instrument
CN208443608U (en) A kind of sewage sampling device for waste water control
CN206281739U (en) A kind of novel intelligent penetron
CN215945410U (en) Soil transportation storage device for geological exploration
CN109781217A (en) A kind of detection device for water meter
CN213842927U (en) Specific resistance device capable of improving filtrate volume measurement accuracy
CN109030074A (en) Acquisition device and density measurement system
CN210513381U (en) Weighing device for paint raw material proportioning
CN204461934U (en) Jewels and jade relative density fast detector
CN220063743U (en) Novel equipment for detecting mud proportion
CN208140514U (en) A kind of direct-reading densimeter
CN218716743U (en) Geothermal well temperature well depth instrument
CN218330117U (en) Volume detection device is used in glass bottle processing
CN212844836U (en) Rubber density detection device
CN212568066U (en) Liquid sampling, metering and detecting device
CN214097241U (en) Oxygen ion content tester with anti-collision structure
CN217443393U (en) Material receiving device for double-station alternating comprehensive test machine
CN212674238U (en) Material level measuring instrument with protection function
CN210953698U (en) Cotton goods density short-term test device of glass
CN215003881U (en) Instrument liquid output detection device
CN209911231U (en) Portable aquatic product quality parameter Raman detection device

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: 20210504