CN104655158A - Humidity measurer - Google Patents
Humidity measurer Download PDFInfo
- Publication number
- CN104655158A CN104655158A CN201310597649.1A CN201310597649A CN104655158A CN 104655158 A CN104655158 A CN 104655158A CN 201310597649 A CN201310597649 A CN 201310597649A CN 104655158 A CN104655158 A CN 104655158A
- Authority
- CN
- China
- Prior art keywords
- time base
- electric capacity
- dual time
- resistance
- leads ends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a humidity measurer. The humidity measurer comprises a 556 double-time base circuit, a first resistor, a second resistor, a third resistor, a fourth resistor, a first triode, a second triode, a third triode, a fourth triode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a power supply and a potentiometer, wherein the output end of the power supply is connected with the fourth pin end of the 556 double-time base circuit, the tenth pin end of the 556 double-time base circuit, the eleventh pin end of the 556 double-time base circuit, the first end of the second resistor, the first end of the third resistor and the first end of the fourth resistor respectively; the sixth pin end of the 556 double-time base circuit is connected with the second pin end of the 556 double-time base circuit, the first end of the first capacitor and the first end of the first resistor respectively; the second end of the first capacitor is grounded. The humidity measurer solves the problems that the conventional humidity measurer is so poor in measuring accuracy that wrong judgment on humidity is caused, and has popularization and application values.
Description
Technical field
The present invention relates to a kind of environment supervision instrument, particularly relate to a kind of moisture tester.
Background technology
Humidity has three kinds of citation forms, i.e. vapour pressure, relative humidity, dewpoint humidity.Vapour pressure (being once called absolute humidity) represents the pressure of water in air vapour part, and unit for unit, gets decimal one with hundred handkerchiefs (hPa); The relative humidity percentage of actual water vapor pressure in air with the ratio of the saturation vapour pressure under temperature at that time represents, round numbers; Dewpoint humidity is temperature when representing that cooling reaches capacity under water in air vapour content and the constant condition of air pressure, and unit represents with degree Celsius (DEG C), gets decimal one.The continuous record of relative humidity and minimum relative humidity can also be measured when being furnished with hygrometer.
Air humidity has important purposes in many aspects, its importance value mainly in theory in aerology, meteorology and climatology, and effect in practical application is smaller.Medically air humidity and breathe between relation closely.Under certain humidity, oxygen ratio is easier to enter blood by alveolar.Common people feel the most comfortable under the relative humidity of 45-55%.Overheated and relative humidity in unaired room is general lower, this may be bad and have spread effect to mucous membrane to skin.The too high perspiration functions affecting people's regulate body temperature of humidity, people can feel sultry.Generally speaking people at high temperature but low humidity (such as desert) better than the sensation of (such as rainforest) when temperature is not too high but humidity is very high.When being anaesthetized by breathing, the humidity of anesthetic gases is very crucial.The anesthetic gases medically used generally is deposited in anhydrous situation, if the words of not adding humidity in use can cause evaporation and dehydration in the lung of people.
So need the monitoring carrying out at every moment to humidity in a lot of occasion and environment, to ensure that humidity is in the scope of suitable people living, humidity measuring method comprises wet and dry bulb mensuration, dewpoint humidity mensuration, utilizes material geometrical variations mensuration, coulometric hygrometer, optics shape hygrometer, gas chromatography, chemical substance electrical characteristics method, ionic crystal condensation humidity meter etc., the moisture tester of prior art also exists the problem of measuring accuracy deficiency, easily causes the false judgment to humidity.
Summary of the invention
Object of the present invention is just to provide a kind of moisture tester to solve the problem.
In order to achieve the above object, present invention employs following technical scheme:
A kind of moisture tester, comprise 556 dual time base circuits, first resistance is to the 4th resistance, first triode is to the 4th triode, first electric capacity is to the 4th electric capacity, power supply and potentiometer, the output terminal of described power supply respectively with the 4th leads ends of described 556 dual time base circuits, tenth leads ends of described 556 dual time base circuits, 11 leads ends of described 556 dual time base circuits, the first end of described second resistance, the first end of described 3rd resistance is connected with the first end of described 4th resistance, 6th leads ends of described 556 dual time base circuits respectively with the second leads ends of described 556 dual time base circuits, the first end of described first electric capacity is connected with the first end of described first resistance, second end ground connection of described first electric capacity, 3rd leads ends of described 556 dual time base circuits is connected with the first end of described second electric capacity, second end ground connection of described second electric capacity, 7th leads ends ground connection of described 556 dual time base circuits, second end of described first resistance is connected with the first end of described potentiometer and the sliding end of described potentiometer respectively, second end of described potentiometer respectively with the 5th leads ends of described 556 dual time base circuits, the first end of described 3rd electric capacity is connected with the negative pole of described 4th diode, second end of described 3rd electric capacity is connected with the second end of described second resistance and the negative pole of described first diode respectively, the positive pole of described first diode is connected with the 8th leads ends of described 556 dual time base circuits, second end of described 3rd resistance is connected with the first end of described 4th electric capacity and the 12 leads ends of described 556 dual time base circuits respectively, second end ground connection of described 4th electric capacity, first leads ends of described 556 dual time base circuits is connected with the first end of described 5th electric capacity, second end ground connection of described 5th electric capacity, 9th leads ends of described 556 dual time base circuits is connected with the negative pole of described second diode, the positive pole of described second diode respectively with the second end of described 4th resistance, the positive pole of described 3rd diode is connected with the positive pole of described 4th diode, the negative pole of described 3rd diode is the signal output part of described moisture tester.
Beneficial effect of the present invention is:
The present invention is a kind of moisture tester, and the measuring accuracy that the moisture tester solving prior art also exists is not enough, and causes the problem of the false judgment to humidity, has the value promoted the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of moisture tester of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention is a kind of moisture tester, comprise 556 dual time base circuit IC, first resistance R1 is to the 4th resistance R4, one or three pole VT1 pipe is to the 4th triode VT4, first electric capacity C1 is to the 4th electric capacity C4, power supply and potentiometer RP, the output terminal of power supply respectively with the 4th leads ends of 556 dual time base circuit IC, tenth leads ends of 556 dual time base circuit IC, 11 leads ends of 556 dual time base circuit IC, the first end of the second resistance R2, the first end of the 3rd resistance R3 is connected with the first end of the 4th resistance R4, 6th leads ends of 556 dual time base circuit IC respectively with second leads ends of 556 dual time base circuit IC, the first end of the first electric capacity C1 is connected with the first end of the first resistance R1, the second end ground connection of the first electric capacity C1, 3rd leads ends of 556 dual time base circuit IC is connected with the first end of the second electric capacity C2, the second end ground connection of the second electric capacity C2, the 7th leads ends ground connection of 556 dual time base circuit IC, second end of the first resistance R1 is connected with the first end of potentiometer RP and the sliding end of potentiometer RP respectively, second end of potentiometer RP respectively with the 5th leads ends of 556 dual time base circuit IC, the first end of the 3rd electric capacity C3 is connected with the negative pole of the 4th diode D4, second end of the 3rd electric capacity C3 is connected with second end of the second resistance R2 and the negative pole of the first diode D1 respectively, the positive pole of the first diode D1 is connected with the 8th leads ends of 556 dual time base circuit IC, second end of the 3rd resistance R3 is connected with the first end of the 4th electric capacity C4 and the 12 leads ends of 556 dual time base circuit IC respectively, the second end ground connection of the 4th electric capacity C4, first leads ends of 556 dual time base circuit IC is connected with the first end of the 5th electric capacity C5, the second end ground connection of the 5th electric capacity C5, 9th leads ends of 556 dual time base circuit IC is connected with the negative pole of the second diode D2, the positive pole of the second diode D2 respectively with second end of the 4th resistance R4, the positive pole of the 3rd diode D3 is connected with the positive pole of the 4th diode D4, the negative pole of the 3rd diode D3 is the signal output part of moisture tester.
In the present invention, potentiometer RP, the first resistance R1 and the first electric capacity C1 determine the oscillation frequency of 556 dual time base circuit IC.
Claims (1)
1. a moisture tester, it is characterized in that: comprise 556 dual time base circuits, first resistance is to the 4th resistance, first triode is to the 4th triode, first electric capacity is to the 4th electric capacity, power supply and potentiometer, the output terminal of described power supply respectively with the 4th leads ends of described 556 dual time base circuits, tenth leads ends of described 556 dual time base circuits, 11 leads ends of described 556 dual time base circuits, the first end of described second resistance, the first end of described 3rd resistance is connected with the first end of described 4th resistance, 6th leads ends of described 556 dual time base circuits respectively with the second leads ends of described 556 dual time base circuits, the first end of described first electric capacity is connected with the first end of described first resistance, second end ground connection of described first electric capacity, 3rd leads ends of described 556 dual time base circuits is connected with the first end of described second electric capacity, second end ground connection of described second electric capacity, 7th leads ends ground connection of described 556 dual time base circuits, second end of described first resistance is connected with the first end of described potentiometer and the sliding end of described potentiometer respectively, second end of described potentiometer respectively with the 5th leads ends of described 556 dual time base circuits, the first end of described 3rd electric capacity is connected with the negative pole of described 4th diode, second end of described 3rd electric capacity is connected with the second end of described second resistance and the negative pole of described first diode respectively, the positive pole of described first diode is connected with the 8th leads ends of described 556 dual time base circuits, second end of described 3rd resistance is connected with the first end of described 4th electric capacity and the 12 leads ends of described 556 dual time base circuits respectively, second end ground connection of described 4th electric capacity, first leads ends of described 556 dual time base circuits is connected with the first end of described 5th electric capacity, second end ground connection of described 5th electric capacity, 9th leads ends of described 556 dual time base circuits is connected with the negative pole of described second diode, the positive pole of described second diode respectively with the second end of described 4th resistance, the positive pole of described 3rd diode is connected with the positive pole of described 4th diode, the negative pole of described 3rd diode is the signal output part of described moisture tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597649.1A CN104655158A (en) | 2013-11-22 | 2013-11-22 | Humidity measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597649.1A CN104655158A (en) | 2013-11-22 | 2013-11-22 | Humidity measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655158A true CN104655158A (en) | 2015-05-27 |
Family
ID=53246561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310597649.1A Pending CN104655158A (en) | 2013-11-22 | 2013-11-22 | Humidity measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104655158A (en) |
-
2013
- 2013-11-22 CN CN201310597649.1A patent/CN104655158A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103712882B (en) | Measure method and the system of High Temperature High Pressure high humidity body humidity | |
| CN203552425U (en) | Humidity alarm | |
| Wilkes et al. | Measurement of humidity | |
| CN106994201A (en) | One kind breathing humidifying instrument and its measurement thermal circuit | |
| CN107907570B (en) | Compressed air pressure dew point online detection device and calculation method thereof | |
| KR101817752B1 (en) | Apparatus and Method for analyzing breath gases using multi-sensor | |
| CN104655158A (en) | Humidity measurer | |
| CN203572789U (en) | Hygrometer | |
| CN104655677A (en) | Relative humidity measurer | |
| CN103006226A (en) | Device and method for determining breathing heat of livestock open type mask | |
| CN104655676A (en) | Hygrometer | |
| Bose et al. | Real-time breath rate monitor based health security system using non-invasive biosensor | |
| CN209559401U (en) | A kind of accurate electron vacuum gage of reverse-filling | |
| CN104658198A (en) | High-accuracy humidity alarm | |
| CN204274423U (en) | Clinical thermometer auto-calibration circuits | |
| CN106353374A (en) | Equipment for environment humidity detection | |
| Tonello et al. | Improved portable measuring device for real-time humidity and temperature monitoring in intensive care unit | |
| CN207679833U (en) | A kind of breathing humidifying instrument and its measure thermal circuit | |
| CN108562701A (en) | A kind of bromomethane density calculating method and detecting system | |
| CN103487479B (en) | Hand-held breath analyzing instrument | |
| CN2715151Y (en) | Soil salinity sensor | |
| CN205006895U (en) | Breathe signal detection device's improvement structure | |
| Mellanby | The conditions of temperature and humidity of the air between the skin and shirt of man | |
| CN203479740U (en) | Hand-held exhaled nitric oxide analyzer | |
| CN111220655A (en) | Monitor and monitoring method for automatically calibrating zero point of negative oxygen ion sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |