CN104502555B - A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method - Google Patents
A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method Download PDFInfo
- Publication number
- CN104502555B CN104502555B CN201410824773.1A CN201410824773A CN104502555B CN 104502555 B CN104502555 B CN 104502555B CN 201410824773 A CN201410824773 A CN 201410824773A CN 104502555 B CN104502555 B CN 104502555B
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- sample chamber
- respiratory intensity
- communicated
- vegetables
- 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
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method, comprise air intake opening, it is characterized in that: described air intake opening connects one-level carbon dioxide absorption room, described one-level carbon dioxide absorption room is communicated with described secondary carbon dioxide absorption room, described secondary carbon dioxide absorption room is communicated with surge chamber, and described surge chamber is communicated with sample chamber, and described sample chamber is communicated with hothouse, described hothouse is communicated with determination and analysis room, and described hothouse is connected with gas outlet.Fruits and vegetables respiratory intensity determinator of the present invention can be fast and convenient the respiratory intensity of mensuration fruit and vegetable food, this device adopts the design of integration, and equipment is light to be small and exquisitely easy to carry, and can be applicable to various mensuration environment.
Description
Technical field
The present invention relates to measurement mechanism field, specifically, relate to a kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method.
Background technology
The gardening products such as the fruits and vegetables after results remain a lived individuality, are the activity of sustaining life, and must carry out respiration.Respiratory intensity weighs the respiratory important indicator of gardening product such as fruits and vegetables, measures respiratory intensity and can weigh respiratory power, understand postharvest fruit and vegetable physiological status, provides necessary data for low temperature and controlled atmosphere storing and respiration heat calculate.Therefore, when studying or process fruit vegetables storing problem, measuring respiratory intensity is the means often adopted.Respiratory intensity is generally with at a certain temperature, and every kilogram of fruit carbon dioxide milligram number produced of breathing per hour represents.The method being used for measuring respiratory intensity at present mainly contains static method, air-flow method, infrared carbon dioxide analyzer method, vapor-phase chromatography.Static method device is simple, but because carbon dioxide content rising can suppress the respiration of fruits and vegetables in the environment closed, and therefore the result that records of static method is inaccurate.Air-flow method comparatively static method is comparatively accurate, but because needs to adopt alkali liquor absorption to use oxalatimetry again, so be not easy to carry.Infrared carbon dioxide analyzer method improves on the basis of air-flow method, the alkali liquor absorption titration of end is changed into infrared carbon dioxide analysis to measure, but its air inlet section still adopts high-concentration alkali liquor to absorb the method for Carbon Dioxide in Air, is not easy to carry, and there is potential safety hazard.Vapor-phase chromatography result is accurate, and precision is high, but required gas chromatograph involves great expense, and cannot portably use.The immediate data that static method and air-flow method obtain is the amount of titration oxalic acid used, the immediate data that infrared carbon dioxide analyzer and vapor-phase chromatography obtain is carbon dioxide content, that that data all need substitution formula repeatedly to calculate, increase probability of makeing mistakes and also consume analysis time simultaneously, the very first time cannot obtain measurement result.Along with the needs of fruit and vegetable storage and transportation Study on preservation technique and application, need development one badly and be both convenient for carrying, directly can obtain again the intelligent determinator of respiratory intensity result.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method, is convenient for carrying, simple to operate, intelligence degree is high.
The present invention adopts following technical scheme to realize goal of the invention:
A kind of portable intelligent fruits and vegetables respiratory intensity determinator, comprise air intake opening, it is characterized in that: described air intake opening connects one-level carbon dioxide absorption room, described one-level carbon dioxide absorption room is communicated with described secondary carbon dioxide absorption room, described secondary carbon dioxide absorption room is communicated with surge chamber, and described surge chamber is communicated with sample chamber, and described sample chamber is communicated with hothouse, described hothouse is communicated with determination and analysis room, and described hothouse is connected with gas outlet.
As the further restriction to the technical program, in described sample chamber, be provided with temperature sensor.
As the further restriction to the technical program, described determination and analysis indoor are provided with carbon dioxide detecting element.
As the further restriction to the technical program, described determination and analysis indoor are provided with air pump.
As the further restriction to the technical program, described air pump attended operation panel.
As the further restriction to the technical program, described temperature sensor is all connected microprocessor with carbon dioxide detecting element.
A kind of portable intelligent fruits and vegetables respiratory intensity determinator method, is characterized in that: comprise the steps:
(1) first the fruit of accurately weighing is put into sample chamber, guarantee sealing;
(2) booster air pump runs, and is constantly brought in a steady stream in device by outside air;
(3) concentration of the carbon dioxide of sample chamber when carbon dioxide detecting element detects that device starts, and be recorded in microprocessor;
(4) first outside air enters one-level carbon dioxide absorption room 2 by air intake opening and enters secondary carbon dioxide absorption room 3 again, and the carbon dioxide now in air is all adsorbed by absorbing agent;
(5) enter sample chamber again after entering surge chamber without the air of carbon dioxide, the sample in sample chamber consumes oxygen by respiration and produces carbon dioxide;
(6) gas in sample chamber enters the hothouse being placed with drying agent and removes the water vapor wherein contained, and then enters determination and analysis room 7;
(7) plant running is after 30 minutes, and carbon dioxide detecting element again detects the gas concentration lwevel in gas and is recorded in microprocessor;
(8) in whole testing process, the temperature in micro processor record per minute sample chamber, end to be detected calculates medial temperature afterwards automatically;
(9) the various data obtained are substituted in pre-set programs the respiratory intensity calculating fruits and vegetables under a certain temperature environment by microprocessor;
(10) detected gas is discharged by gas outlet 8 through air pump.
As the further restriction to the technical program, the respiratory intensity computing formula of the fruits and vegetables in described step (8) is:
Q: sample respiratory intensity, unit mg/kg/h; S: air pump flow, units/ml/min; C
0: the initial gas concentration lwevel in sample chamber, unit μ l/L; C: run sample chamber gas concentration lwevel after 30 minutes, unit μ l/L; M: sample quality, unit g.
Compared with prior art, advantage of the present invention and good effect are: the respiratory intensity of the mensuration fruit and vegetable food that fruits and vegetables respiratory intensity determinator of the present invention can be fast and convenient, this device adopts the design of integration, and equipment is light to be small and exquisitely easy to carry, and can be applicable to various mensuration environment.This device adopts microcontroller to preset mensuration program, and enroll data analysis formula in advance, operating personnel only need input example weight can obtain sample respiratory intensity measured value, avoids the calculating of operating personnel's complexity, decreases the probability of makeing mistakes.The present invention is simple to operate, intelligence degree is high, estimating precision is high, avoids expensive analytical instrument and complicated running program, improves the accuracy of work efficiency and measurement result.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is structure schematic diagram of the present invention.
In figure, 1 is air intake opening, and 2 is one-level carbon dioxide absorption room, 3 is secondary carbon dioxide absorption room, and 4 is surge chamber, and 5 is sample chamber, 6 is hothouse, 7 is determination and analysis room, and 8 is gas outlet, and 9 is control panel, 10 is temperature sensor, 11 is carbon dioxide detecting element, and 12 is air pump, and 13 is microprocessor.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
See Fig. 1 and Fig. 2, the present invention includes air intake opening, air intake opening 1 described in 1 connects one-level carbon dioxide absorption room 2, described one-level carbon dioxide absorption room 2 is communicated with described secondary carbon dioxide absorption room 3, described secondary carbon dioxide absorption room 3 is communicated with surge chamber 4, and described surge chamber 4 is communicated with sample chamber 5, and described sample chamber 5 is communicated with hothouse 6, described hothouse 6 is communicated with determination and analysis room 7, and described hothouse 6 is connected with gas outlet 8.
Temperature sensor 10 is provided with in described sample chamber 5.
Carbon dioxide detecting element 11 is provided with in described determination and analysis room 7.
Air pump 12 is provided with in described determination and analysis room 7.
Described air pump 12 attended operation panel 9.
Described temperature sensor 10 is all connected microprocessor 13 with carbon dioxide detecting element 11.
Be filled with carbon-dioxide absorbent in described one-level carbon dioxide absorption room 2 and secondary carbon dioxide absorption room 3, in order to absorb the carbon dioxide in air, make to enter in the air of sample chamber 5 no longer containing carbon dioxide.Equipment can arrange one or more carbon dioxide absorption room, and carbon dioxide absorption number of chambers amount decides according to the amount of the volume of each absorption chamber and filling adsorbent.One-level carbon dioxide absorption room 2 is communicated with air by air intake opening 1, has connecting hole to be connected between different absorption chamber.
Described surge chamber 4 is for separating sample chamber 5 and carbon dioxide absorption room, and avoiding carbon dioxide absorber to enter sample chamber 5 affects measurement result, also avoids the carbon dioxide produced in sample chamber 5 to be affected measurement result by sorbent simultaneously.Inject a certain amount of distilled water in surge chamber 4, with isolated carbon dioxide absorption room and sample chamber 5, can be used for pick-up unit simultaneously and whether leak gas.After surge chamber 4 is positioned at afterbody carbon dioxide absorption room 3, be connected with secondary carbon dioxide absorption room 3 by connecting pipe, connecting pipe need insert below liquid level.Surge chamber 4 is connected with sample chamber 5 by connecting hole, and connecting hole should more than liquid level.
Sample chamber, for placing testing sample, is put into be measured in described sample chamber 5 after samples weighing.Sample chamber 5, with openable gland bonnet, needs after gland bonnet fastening to be hedged off from the outer world completely, ensures that in sample chamber 5, gas and outside air do not exchange.Sealing means can adopt water seal, also can adopt the O-ring seal of the elastic material such as silica gel ring, rubber ring and coordinate buckle to seal.Be provided with temperature sensor 10 in sample chamber 5, for working sample room 5 temperature and sample temperature, usual sample temperature should be consistent with sample chamber 5 temperature.The Temperature numerical that temperature sensor 10 measures is transferred in the microprocessor of determination and analysis room for carrying out temperature adjustmemt to final analysis result.
Drying agent is filled with, for absorbing the moisture in tested gas in described hothouse 6.Because moisture in gas can produce harmful effect to the mensuration of carbon dioxide detecting element, therefore tested gas needs before entering determination and analysis room to carry out drying process, to remove the moisture in gas.
Be provided with air pump 12, carbon dioxide detecting element 11, microprocessor 13 in described determination and analysis room 7, determination and analysis room 7 is externally connected to control panel 9.Air pump 12, for providing power for the gas circuit of whole device, makes outside air enter carbon dioxide absorption room, surge chamber, sample chamber, hothouse and determination and analysis room step by step by air intake opening, discharges eventually through gas outlet 8.Carbon dioxide detecting element 11 is in order to detect the content of carbon dioxide in gas.Control panel 9 is in order to input the control signals such as testing sample weight, dispensing device operation and stopping.
Present invention also offers a kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method, during operation, first the fruit of accurately weighing (m gram) is put into sample chamber 5, build sample chamber 5 upper cover, guarantee sealing.Then by the start key starter gear on guidance panel 9.Air pump 12 runs, and is constantly brought in a steady stream in device by outside air.Concentration (the C of sample chamber carbon dioxide when carbon dioxide detecting element 11 detects that device starts
0μ l/L), and be recorded in microprocessor 13.First outside air enters one-level carbon dioxide absorption room 2 by air intake opening 1, then enters secondary carbon dioxide absorption room 3, and the carbon dioxide now in air is all adsorbed by absorbing agent.Sample chamber 5 is entered again after entering surge chamber 4 without the air of carbon dioxide.Sample in sample chamber 5 consumes oxygen by respiration and produces carbon dioxide.Gas in sample chamber 5 enters the hothouse 6 being placed with drying agent and removes the water vapor wherein contained, and then enters determination and analysis room 7.Plant running is after 30 minutes, and carbon dioxide detecting element again detects the gas concentration lwevel (C μ l/L) in gas and is recorded in micro processor 13.Detected gas is discharged by gas outlet 8 through air pump.In whole testing process, the temperature in microprocessor 13 record per minute sample chamber, end to be detected calculates medial temperature (T DEG C) afterwards automatically.The various data obtained are substituted in pre-set programs the respiratory intensity calculating fruits and vegetables under a certain temperature environment by microprocessor 13.
Sample respiratory intensity computing formula is:
Q: sample respiratory intensity (mg/kg/h); S: air pump flow (ml/min); C
0: the initial gas concentration lwevel in sample chamber (μ l/L); C: run sample chamber gas concentration lwevel (μ l/L) after 30 minutes; M: sample quality (g).
Above are only the present invention's preferably a kind of feasible program, and the protection domain of unrestricted this patent, all application patent specification and the change of the equivalent structure done by accompanying drawing, within the protection domain being all included in this patent.
Claims (6)
1. a portable intelligent fruits and vegetables respiratory intensity determinator, comprise air intake opening, it is characterized in that: described air intake opening connects one-level carbon dioxide absorption room, described one-level carbon dioxide absorption room is communicated with secondary carbon dioxide absorption room, described secondary carbon dioxide absorption room is communicated with surge chamber, described surge chamber is communicated with sample chamber, described sample chamber is communicated with hothouse, described hothouse is communicated with determination and analysis room, described hothouse is connected with gas outlet, be provided with temperature sensor in described sample chamber, described determination and analysis indoor are provided with air pump.
2. portable intelligent fruits and vegetables respiratory intensity determinator according to claim 1, is characterized in that: described determination and analysis indoor are provided with carbon dioxide detecting element.
3. portable intelligent fruits and vegetables respiratory intensity determinator according to claim 1, is characterized in that: described air pump attended operation panel.
4. portable intelligent fruits and vegetables respiratory intensity determinator according to claim 2, is characterized in that: described temperature sensor is all connected microprocessor with carbon dioxide detecting element.
5. utilize a portable intelligent fruits and vegetables Respiration Rate in Fresh for device described in claim 1 or 2 or 3 or 4, it is characterized in that: comprise the steps:
First the fruit of accurately weighing is put into sample chamber, guarantee sealing;
Booster air pump runs, and is constantly brought in a steady stream in device by outside air;
The concentration of the carbon dioxide of sample chamber when carbon dioxide detecting element detects that device starts, and be recorded in microprocessor;
First outside air enters one-level carbon dioxide absorption room (2) by air intake opening and enters secondary carbon dioxide absorption room (3) again, and the carbon dioxide now in air is all adsorbed by absorbing agent;
Enter sample chamber again after entering surge chamber without the air of carbon dioxide, the sample in sample chamber consumes oxygen by respiration and produces carbon dioxide;
Gas in sample chamber enters the hothouse being placed with drying agent and removes the water vapor wherein contained, and then enters determination and analysis room (7);
Plant running is after 30 minutes, and carbon dioxide detecting element again detects the gas concentration lwevel in gas and is recorded in microprocessor;
In whole testing process, temperature in micro processor record per minute sample chamber, end to be detected calculates medial temperature afterwards automatically, and the various data obtained are substituted in pre-set programs the respiratory intensity calculating fruits and vegetables under a certain temperature environment by microprocessor;
Detected gas is discharged by gas outlet through air pump.
6. portable intelligent fruits and vegetables respiratory intensity determinator method according to claim 5, is characterized in that: the respiratory intensity computing formula of the fruits and vegetables in described step (8) is:
Q: sample respiratory intensity, unit mg/kg/h; S: air pump flow, units/ml/min; C
0: the initial gas concentration lwevel in sample chamber, unit μ l/L; C: run sample chamber gas concentration lwevel after 30 minutes, unit μ l/L; M: sample quality, unit g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824773.1A CN104502555B (en) | 2014-12-27 | 2014-12-27 | A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824773.1A CN104502555B (en) | 2014-12-27 | 2014-12-27 | A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104502555A CN104502555A (en) | 2015-04-08 |
| CN104502555B true CN104502555B (en) | 2016-04-20 |
Family
ID=52943969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410824773.1A Expired - Fee Related CN104502555B (en) | 2014-12-27 | 2014-12-27 | A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104502555B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842185A (en) * | 2016-05-31 | 2016-08-10 | 华中农业大学 | Device and method for detecting respiration of chicken eggs |
| KR20180138541A (en) * | 2017-06-21 | 2018-12-31 | 아사히 가세이 가부시키가이샤 | Packaging, preservation apparatus and preservation method for fruit and vegetable |
| CN108008091A (en) * | 2017-10-20 | 2018-05-08 | 北京农学院 | Dynamic fruits and vegetables respiration rate measurement instrument |
| CN110554157B (en) * | 2019-09-12 | 2021-08-10 | 中国农业大学 | Device and method for measuring postharvest physiological parameters of fruits and vegetables |
| CN112114097A (en) * | 2020-09-22 | 2020-12-22 | 刘骏 | Method for identifying difference of storage tolerance among grape varieties |
| CN114994263A (en) * | 2022-07-15 | 2022-09-02 | 华中农业大学 | Fruit and vegetable respiration physiology measuring device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1005204B (en) * | 2005-02-11 | 2006-05-02 | Γρηγοριος Λαμπρινος | Portable device and method for measuring the respiratory rate of fruit in modified atmosphere pakaging |
| CN101290324A (en) * | 2007-04-20 | 2008-10-22 | 中国科学院生态环境研究中心 | Full-automatic multiple-flux chamber system |
| CN201307115Y (en) * | 2008-12-02 | 2009-09-09 | 辽宁工程技术大学 | Fruits and vegetables respiration measuring device |
| WO2011110192A1 (en) * | 2010-03-10 | 2011-09-15 | Perfo Tec Bv | A process for defining the respiration characteristics of a food product |
| CN203191358U (en) * | 2013-04-15 | 2013-09-11 | 大连民族学院 | Respiratory chamber for determining respiration intensity of fruits and vegetables |
| CN103592300A (en) * | 2013-09-27 | 2014-02-19 | 苏州国环环境检测有限公司 | Method of measuring respiration intensity of fresh fruits and vegetables by titrimetric analysis |
| CN203503223U (en) * | 2013-10-12 | 2014-03-26 | 内蒙古民族大学 | Measuring and fixing device for fruit and vegetable respiratory intensity |
| CN103698330A (en) * | 2014-01-16 | 2014-04-02 | 北京航空航天大学 | Experimental device for detecting plant respiration and method thereof |
| CN204405638U (en) * | 2014-12-27 | 2015-06-17 | 山东商业职业技术学院 | A kind of portable intelligent fruits and vegetables respiratory intensity determinator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100540719B1 (en) * | 2000-09-25 | 2006-01-11 | 오츠카 세이야쿠 가부시키가이샤 | Method of judging absorption capacity of carbon dioxide absorbent |
-
2014
- 2014-12-27 CN CN201410824773.1A patent/CN104502555B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1005204B (en) * | 2005-02-11 | 2006-05-02 | Γρηγοριος Λαμπρινος | Portable device and method for measuring the respiratory rate of fruit in modified atmosphere pakaging |
| CN101290324A (en) * | 2007-04-20 | 2008-10-22 | 中国科学院生态环境研究中心 | Full-automatic multiple-flux chamber system |
| CN201307115Y (en) * | 2008-12-02 | 2009-09-09 | 辽宁工程技术大学 | Fruits and vegetables respiration measuring device |
| WO2011110192A1 (en) * | 2010-03-10 | 2011-09-15 | Perfo Tec Bv | A process for defining the respiration characteristics of a food product |
| CN203191358U (en) * | 2013-04-15 | 2013-09-11 | 大连民族学院 | Respiratory chamber for determining respiration intensity of fruits and vegetables |
| CN103592300A (en) * | 2013-09-27 | 2014-02-19 | 苏州国环环境检测有限公司 | Method of measuring respiration intensity of fresh fruits and vegetables by titrimetric analysis |
| CN203503223U (en) * | 2013-10-12 | 2014-03-26 | 内蒙古民族大学 | Measuring and fixing device for fruit and vegetable respiratory intensity |
| CN103698330A (en) * | 2014-01-16 | 2014-04-02 | 北京航空航天大学 | Experimental device for detecting plant respiration and method thereof |
| CN204405638U (en) * | 2014-12-27 | 2015-06-17 | 山东商业职业技术学院 | A kind of portable intelligent fruits and vegetables respiratory intensity determinator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104502555A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104502555B (en) | A kind of portable intelligent fruits and vegetables respiratory intensity determinator and assay method | |
| Niinemets et al. | Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols | |
| Fishman et al. | Model for gas exchange dynamics in modified‐atmosphere packages of fruits and vegetables | |
| CN106461592B (en) | Gas component concentration measuring apparatus and method for measuring gas component concentration | |
| CN102590439B (en) | Detection apparatus and detection method for photocatalyzed gas degradation rate | |
| CN203275231U (en) | Device for measuring dynamic adsorption coefficient of material in vacuum | |
| CN104614496B (en) | A kind of formaldehyde absorbing test cabin | |
| CN103913761B (en) | In a kind of active activated carbon method222The detection efficient measuring method of Rn | |
| CN103698330B (en) | A kind of experimental provision and method thereof measuring plant respiration | |
| CN206772749U (en) | A kind of VOCs adsorbents and catalyst performance evaluation device | |
| CN105353396A (en) | Rapid measurement method of radon exhalation rate through closed-loop partial integration | |
| CN109060591A (en) | A kind of evaluating apparatus and evaluation method for escaping gas performance of the adsorbent | |
| CN204405638U (en) | A kind of portable intelligent fruits and vegetables respiratory intensity determinator | |
| CN105136707A (en) | Detection device of volatile organic compound content and catalytic oxidation purification efficiency | |
| Gyawali et al. | Talking SMAAC: a new tool to measure soil respiration and microbial activity | |
| JP2006098387A (en) | Apparatus and method for analysis of siloxane in siloxane-containing gas | |
| CN104777090B (en) | Oxygen flow analysis tester | |
| RU2302627C1 (en) | Gas analyzer with an open inlet on the basis of piezosensors | |
| US20150185177A1 (en) | Method and device for measuring concentration of substance in fluid | |
| CN103808820B (en) | A kind of Freon gas detection alarm device and detection method thereof | |
| CN102721726A (en) | Method and device for measuring concentration of materials in fluid | |
| CN105973337B (en) | Experimental device and experimental method for metering and drying sampling of gas product | |
| CN106290718A (en) | Gas analysis and absorption plant | |
| CN205538535U (en) | Subtract heavy method steam transmissivity apparatus | |
| CN204666473U (en) | Testing vapor transmission instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20171227 |