CN2837848Y - Supersaturated moisture content tester - Google Patents
Supersaturated moisture content tester Download PDFInfo
- Publication number
- CN2837848Y CN2837848Y CN 200520122923 CN200520122923U CN2837848Y CN 2837848 Y CN2837848 Y CN 2837848Y CN 200520122923 CN200520122923 CN 200520122923 CN 200520122923 U CN200520122923 U CN 200520122923U CN 2837848 Y CN2837848 Y CN 2837848Y
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- China
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- moisture content
- thin film
- humidity sensor
- hydrophilic thin
- moisture
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Abstract
The utility model relates to an apparatus, which can measure that the moisture content on the material surface is greater than 100 percents. A supersaturated moisture content tester is mainly composed of a temperature and humidity sensor, a liquid crystal display screen, an SCM, a power supply converting chip, etc. A hydrophilic thin film is used as the moisture conducting medium and is stuck to the contacting face of the temperature and humidity sensor. After the hydrophilic thin film is in contact with the measured material, the moisture can permeate toward the hydrophilic thin film; according to the specific nature of the measured material, the test time is arranged; the moisture content of the hydrophilic thin film is measured in a fixed time period to obtain the relative moisture content of the material, the moisture content of which is greater than 100 percents. The utility model can measure the relative moisture content of the part of any material, the part exceeds the saturation and the moisture content of the material is greater than 100 percents. The hydrophilic thin film which is used as the moisture conducting medium material is replaced every time; thus, the accuracy of the test data can be ensured; what is more important, the measurement to an organism can be safe and sanitary. The utility model is suitable for the quantitative test and research of dryness, wetness, moistening and desiccation to a tongue body (tongue fluid) during the inspection of the tongue of the traditional Chinese medicine.
Description
Technical field
The utility model relates to a kind of material surface moisture content of measuring greater than 100% instrument.
Technical background
General humidity sensor or wet humidity of dividing analyzer to be mainly used in to measure atmospheric environment and soil change, and are used for grain purchases, grain storage, food mould-proof more, and the fields such as test of multiple raw material of industry water capacity.And the humidity of tested material is all smaller usually in these fields, and representative value is that 10%RH is to 70%RH.So the humidity sensor of production and selling also all designs at this exemplary value scope at present.But the humidity for its surface of some material self surpasses 100%, still has any different but the moisture content of material exceeds saturated part.Therefore to distinguish, detect wet relatively minute that its moisture content is higher than 100% or more still extremely important.Use at present the common humidity sensor of this class then can't measure, because be exactly as the saturation value of moisture content during with humidity 100% according to the instrument of measuring principle design.Along with science and technology development, many for material its branch that initially tries the water all be higher than 100%, and to determine that it is higher than wet relatively branch the more than 100%, as biosome.Biological tissue is except skin, and generally all more than 96%RH, reasons such as body fluid infiltration make the humidity of biological tissue all far above 100%RH to its water capacity.Because the restriction of test philosophy adopts the instrument of common survey moisture to transform the moisture measurement that also can't be applicable to this class material.Given this, develop a kind of its water capacity of can measuring and be higher than 100% wet minute measuring instrument, have important practical value.
Summary of the invention
The purpose of this utility model provide a kind ofly have high response speed, water capacity easy to use, that mainly can measure material is higher than 100%, promptly oversaturated moisture content tester.
The technical scheme that the utility model adopted is: adopt the method for measuring " matter transfer rate " to measure the supersaturation humidity of material.Supersaturation moisture content tester mainly is made of resin enclosure 1, Temperature Humidity Sensor 2, LCDs 3, single-chip microcomputer 4, power conversion chip 5, switch 6 and hummer 7.Paste hydrophilic film 8 on the surface of contact of Temperature Humidity Sensor 2, purpose is as conduct wet medium with hydrophilic film 8.Hydrophilic film is with after measured material contacts, and moisture can permeate to hydrophilic film, sets test interval according to the specific nature of measured material, is promptly measured the moisture content of hydrophilic films 8 in the set time section by single-chip microcomputer 4.In fact for same class measured material, be the transfer rate of in the unified time section, measuring its moisture.The relative digital quantity that records is outputed to single-chip microcomputer 4, handle the moisture content that obtains testee or material through single-chip microcomputer 4 and be shown in LCDs 3, send prompt tone by hummer 7 simultaneously and remind the operator to measure end.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is a structural principle outside drawing of the present utility model.
Embodiment
Below by specific embodiment the utility model is described further.Shown in Fig. 1～2, Temperature Humidity Sensor 2 is connected to the TA1/TA2 mouth of single-chip microcomputer 4; LCDs 3 is connected to COM0～3 of single-chip microcomputer 4 and S0～23 mouthful; Power conversion chip 5 employing MAX1678 types are connected to the CA0 of single-chip microcomputer 4, P1.5, AVCC, DVCC mouth.Power source conversion 5 is boosted battery supply and is used for tester, improves the portability of instrument.Switch 6 is connected to the P1.4 of single-chip microcomputer 4, P4.0～4.7 mouthful; Hummer 7 is connected to the P1.3 mouth of single-chip microcomputer 4.The utility model is provided with 2 switches: switch 6-1 is used for starting tester; When switch 6-2 is used for carrying out the school, parameter and operations such as storage data etc. are set.For present embodiment, Temperature Humidity Sensor 2 adopts the SHT11 types, is integrated 14 A/D converters and the chip that has industrial standard I2C bus digital output interface, and the numeral output of full demarcation is provided, can exchange fully, being used for the human test does not have any murder by poisoning.Power conversion chip 5 adopts MAX1678.The volume of Temperature Humidity Sensor chip is 7.62 * 5.08 * 2.5mm (length and width, thick).During use hydrophilic film 8 is pasted on the surface of contact of sensor 2, press gauge tap 6-1, power conversion chip 5 is finished functions such as on/off, battery voltage detection, automatic shutdown.LCDs 3 places the side of resin enclosure 1, and the hummer 7 of afterbody reminds the operator to measure end.
Use-case is as follows: at first start instrument, the time interval of setting measurement by gauge tap 6; The Temperature Humidity Sensor chip and the measured material that will have hydrophilic film touch.What present embodiment was tested is people's tongue body, the moisture content that transmits between 2 second time of setting measurement tongue body fluid and the film, and measured value is done data processing by single-chip microcomputer 4 and is shown by LCDs 3.Buzzer prompting is simultaneously measured and is finished.The liquid crystal display data presented is based on the above relative tongue body moisture content of tested tongue body 100% humidity, and these data still mark with the form of percentage.Will carry out independent demarcation in advance to dissimilar test materials, soon the test duration is imported single-chip microcomputer with the funtcional relationship of relative moisture content, selects corresponding calibration function according to properties of materials during use.
The beneficial effects of the utility model are, it surpasses saturated greater than 100% object or material can to measure any humidity The relative humidity of degree part is in order to compare in the same class material. Hydrophilic film as the conduct wet medium material is every The inferior replacing except guaranteeing that test data accurately, be the more important thing is and can be accomplished safety and sanitation to the organism measurement. This Utility model be best suited in Evolution of Tongue Inspection of TCM to tongue body (tongue body fluid) do, wet, profit, dry quantitative test and research.
Claims (3)
1. supersaturation moisture content tester, constitute by resin enclosure (1), Temperature Humidity Sensor (2), LCDs (3), single-chip microcomputer (4), power conversion chip (5), switch (6) and hummer (7), it is characterized in that on the surface of contact of Temperature Humidity Sensor (2), pasting hydrophilic film (8), hydrophilic film (8) is measured the moisture content of hydrophilic film (8) as conduct wet medium by single-chip microcomputer (4) in the set time section.
2. according to the described supersaturation moisture content of claim 1 tester, it is characterized in that the chip that described Temperature Humidity Sensor (2) adopts integrated 14 A/D converters and has industrial standard I2C bus digital output interface.
3. according to the described supersaturation moisture content of claim 1 tester, it is characterized in that described power conversion chip (5) adopts MAX1678.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122923 CN2837848Y (en) | 2005-11-01 | 2005-11-01 | Supersaturated moisture content tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122923 CN2837848Y (en) | 2005-11-01 | 2005-11-01 | Supersaturated moisture content tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837848Y true CN2837848Y (en) | 2006-11-15 |
Family
ID=37392336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122923 Expired - Lifetime CN2837848Y (en) | 2005-11-01 | 2005-11-01 | Supersaturated moisture content tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837848Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372497C (en) * | 2005-11-01 | 2008-03-05 | 天津商业大学 | Oversaturated humidity measuring equipment |
| CN111220775A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Saturated or supersaturated flue gas moisture content measurement calibrating device |
-
2005
- 2005-11-01 CN CN 200520122923 patent/CN2837848Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372497C (en) * | 2005-11-01 | 2008-03-05 | 天津商业大学 | Oversaturated humidity measuring equipment |
| CN111220775A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Saturated or supersaturated flue gas moisture content measurement calibrating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080305 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |