CN201000442Y - Intelligentized rapid survey cold mirror dew point hygrometer - Google Patents
Intelligentized rapid survey cold mirror dew point hygrometer Download PDFInfo
- Publication number
- CN201000442Y CN201000442Y CNU2007201032397U CN200720103239U CN201000442Y CN 201000442 Y CN201000442 Y CN 201000442Y CN U2007201032397 U CNU2007201032397 U CN U2007201032397U CN 200720103239 U CN200720103239 U CN 200720103239U CN 201000442 Y CN201000442 Y CN 201000442Y
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- Prior art keywords
- dew point
- point chamber
- controller
- heat
- chamber
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Abstract
The utility model provides an intellectualized quick measuring chilled-mirror dew point hygrometer, which comprises a dew point chamber, a heat sinking system and a control system, wherein, the dew point chamber comprises a rotary cover, a base body, a light splitter, a mirror plane and a semiconductor refrigerator, the heat sinking system comprises a heat sink and a fan, the control system is provided with a controller, and the bottom part of the dew point chamber is connected with the heat sinking system. The utility model is characterized in that the heat sinking system is adopted a heat pipe heat sink which is connected with the base body of the dew point chamber through a flexible heat conducting fin; the base body of the dew point chamber is a split-type, and the split bodied are tightly connected through a seal ring, to form a cavity body; and the controller is adopted a DSP fuzzy controller. The utility model makes great improvement of the structure and the control system of the existing chilled-mirror dew point hygrometer, therefore the measuring speed and accuracy of the apparatus are improved, and the intellectualization of the measuring process is realized.
Description
Technical field
The utility model relates to a kind of dew point meter device, measures the content of moisture in the gas by the test dew point.
Background technology
The Cold Mirrors dew point hygrometer is a kind of typical photoelectric dew-point hygrometer, adopts thermoelectric cooling to obtain to reveal or frost, judges dew point with photoelectric method, and measures dew point by platinum-resistance thermometer.
The heating radiator of existing Cold Mirrors dew point hygrometer adopts whole aluminum fin keel shape radiator heat radiation, fit with the outer bottom of heat-conducting cream and matrix in the bottom surface of heat sink arrangement, the heat dispersion of instrument is poor, causes refrigerating capacity deficiency, the measurement stability of instrument poor, Measuring Time is longer.In addition, the controller of instrument is generally the PID regulator, and the equilibration time is longer, needs could finally reach equilibrium point through the process of repeatedly similar damped oscillation, makes that also stability of instrument is undesirable, the speed that influence is measured.
The utility model content
For addressing the above problem, the utility model provides a kind of Intellectualized, rapid measuring cold mirror dew point instrument, and the structure of existing Cold Mirrors dew point hygrometer has been done significant improvement, thereby improves the measuring speed and the precision of instrument, and can realize the intellectuality of measuring process.
The Intellectualized, rapid measuring cold mirror dew point instrument that the utility model provides comprises dew point chamber, cooling system, control system; Described dew point chamber comprises spiral cover, matrix, optical splitter, minute surface, semiconductor cooler; Described cooling system comprises heating radiator and fan; Described control system is provided with controller, links to each other with the dew point chamber by circuit, and bottom, dew point chamber is connected with cooling system, it is characterized in that: described cooling system adopts heat-pipe radiator, is connected by the matrix of flexible conducting strip with the dew point chamber; The matrix of described dew point chamber is split type, closely connects into a cavity by O-ring seal between the split; Described controller adopts the DSP fuzzy controller.
The inside of described dew point hygrometer also is provided with micro pressure sensor.
Owing to adopted heat-pipe radiator, and heating radiator is connected by flexible heat conduction pad with matrix, make the capacity of heat transmission greatly improve, the heat of matrix can be taken away and be lost in the environment apace, even under the working condition of or frequent high-power refrigeration continuous at refrigeration unit, the refrigeration unit hot junction can not produce heat accumulation yet, and it is the same with environment temperature that the temperature of matrix can keep all the time, thereby guaranteed the stability of instrument, especially more apparent its advantage of continuous working in hot environment.
Owing to adopt DSP fuzzy Control minute surface frost thickness, controller can adapt to any parameter variation of controlled device and revise in real time, thereby guaranteed measuring stability, made frost thickness can reach desired value as soon as possible, improved the measuring speed of instrument significantly.
Description of drawings
Fig. 1 is the dew point chamber and the cooling system structural representation of the utility model Intellectualized, rapid measuring cold mirror dew point instrument.
Embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the dew point chamber of dew point hygrometer comprises optical splitter 1, minute surface 2, semiconductor cooler 3, spiral cover 4, matrix, matrix adopting is split type, be divided into upper and lower two, piece 5 is as the structure function body on the matrix, piece 6 adds O-ring seal between the two and closely connects into a cavity with screw as the heat conduction functive under the matrix.Compare with existing integral structure, split-type structural can be so that the operation of semiconductor cooler 3 when being pasted on the matrix inside surface becomes easily, thereby guarantees the sticking Quality and the radiating effect of refrigerator.The cooling system of dew point hygrometer adopts heat-pipe radiator, comprises heat pipe 7 and fin 8, is connected by the matrix 6 of flexible conducting strip 9 with instrument dew point chamber.
In measuring process, the DSP fuzzy controller takes following step will reflect that the receiving optical signals of frost thickness controls to a certain fixed value: the light signal of gathering reflection minute surface frost thickness with regular time at interval; Calculate the difference E of current luminous energy and control target, luminous energy rate of change Δ E; Judge the grade interval at E and Δ E place according to default fuzzy control program; The digital quantity of calculation control refrigeration electric current, and become working current through digital-to-analog conversion; The Control work electric current makes luminous energy reach control target; Control luminous energy rate of change is in allowed band; Stop fuzzy control and carry out exporting the result after the pressure correction.Owing to adopted the fuzzy controller of real-time control, make the equilibration time of frost layer shorten dramatically, the measuring speed of instrument is able to bigger raising.And because fuzzy controller is monitored in real time to the variation of frost thickness and frost thickness, make the equilibrium state of frosting be able to intelligent judgement, got rid of the operator and caused the inaccurate generation of measurement because of lacking experience, improved the measuring accuracy of instrument.
Claims (2)
1. an Intellectualized, rapid measuring cold mirror dew point instrument comprises dew point chamber, cooling system, control system; Described dew point chamber comprises spiral cover, matrix, optical splitter, minute surface, semiconductor cooler; Described cooling system comprises heating radiator and fan; Described control system is provided with controller, links to each other with the dew point chamber by circuit, and bottom, dew point chamber is connected with cooling system, it is characterized in that: described cooling system adopts heat-pipe radiator, is connected by the matrix of flexible conducting strip with the dew point chamber; The matrix of described dew point chamber is split type, closely connects into a cavity by O-ring seal between the split; Described controller adopts the DSP fuzzy controller.
2. a kind of Intellectualized, rapid measuring cold mirror dew point instrument according to claim 1 is characterized in that: the inside of described dew point hygrometer also is provided with micro pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201032397U CN201000442Y (en) | 2007-01-16 | 2007-01-16 | Intelligentized rapid survey cold mirror dew point hygrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201032397U CN201000442Y (en) | 2007-01-16 | 2007-01-16 | Intelligentized rapid survey cold mirror dew point hygrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000442Y true CN201000442Y (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201032397U Expired - Lifetime CN201000442Y (en) | 2007-01-16 | 2007-01-16 | Intelligentized rapid survey cold mirror dew point hygrometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN201000442Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004397B (en) * | 2007-01-16 | 2010-10-06 | 丁五行 | Intellectualized, rapid measuring cold mirror dew point instrument |
| CN104849313A (en) * | 2015-04-10 | 2015-08-19 | 北京兴迪仪器有限责任公司 | Design of chilled mirror method dew point instrument base structure |
| CN105466969A (en) * | 2015-12-23 | 2016-04-06 | 天津市泓诚泰科技发展有限公司 | Novel precise cold mirror dew-point instrument and air circuit integration module thereof |
| CN105987930A (en) * | 2016-07-06 | 2016-10-05 | 中国人民解放军空军勤务学院 | Self-cooling type dew-point instrument |
| CN106226346A (en) * | 2016-08-30 | 2016-12-14 | 华能国际电力股份有限公司 | A kind of for the sulfuric acid vapor condensation visual experimental provision of deposition |
| CN112858388A (en) * | 2020-12-30 | 2021-05-28 | 广州奥松电子有限公司 | Chilled-mirror dew-point hygrometer probe |
-
2007
- 2007-01-16 CN CNU2007201032397U patent/CN201000442Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004397B (en) * | 2007-01-16 | 2010-10-06 | 丁五行 | Intellectualized, rapid measuring cold mirror dew point instrument |
| CN104849313A (en) * | 2015-04-10 | 2015-08-19 | 北京兴迪仪器有限责任公司 | Design of chilled mirror method dew point instrument base structure |
| CN105466969A (en) * | 2015-12-23 | 2016-04-06 | 天津市泓诚泰科技发展有限公司 | Novel precise cold mirror dew-point instrument and air circuit integration module thereof |
| CN105987930A (en) * | 2016-07-06 | 2016-10-05 | 中国人民解放军空军勤务学院 | Self-cooling type dew-point instrument |
| CN106226346A (en) * | 2016-08-30 | 2016-12-14 | 华能国际电力股份有限公司 | A kind of for the sulfuric acid vapor condensation visual experimental provision of deposition |
| CN112858388A (en) * | 2020-12-30 | 2021-05-28 | 广州奥松电子有限公司 | Chilled-mirror dew-point hygrometer probe |
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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 |
Granted publication date: 20080102 Effective date of abandoning: 20070116 |