CN2490574Y - Device for controlling temp. of transmitting receiving cavity of visibility meter - Google Patents
Device for controlling temp. of transmitting receiving cavity of visibility meter Download PDFInfo
- Publication number
- CN2490574Y CN2490574Y CN 01227151 CN01227151U CN2490574Y CN 2490574 Y CN2490574 Y CN 2490574Y CN 01227151 CN01227151 CN 01227151 CN 01227151 U CN01227151 U CN 01227151U CN 2490574 Y CN2490574 Y CN 2490574Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- heater coil
- control
- cavity
- visiometer
- 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
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Abstract
The utility model provides a device for controlling temperature of transmitting receiving cavity of visibility meter, belonging to the atmospheric measure technical field and relating to an improvement for the visibility meter. A casing(1) of the utility model is provided with a heater coil(3) inside, a control box of the visibility meter is provided with a temperature control circuit inside, the closing or opening of a control relay(8) control the power-on or power-off of the heater coil(3). The utility model can automatically start the heating device according to the ambient temperature, thereby improving the measuring stability and precision.
Description
The utility model belongs to the aeromerric moasurenont technical field, relates to the improvement to visiometer.
The atmosphere visibility meter of China's use at present all is an imported product, for example the FD12 type visiometer of Vaisala Oy's production.There is not heating control apparatus in the emission of this visiometer/reception cavity.When environment temperature is lower, the electrical property of some device in the electronic circuit will change, and then have influence on the measuring error increase of whole instrument, cause the measurement result instability, precise decreasing.
The purpose of this utility model is, a kind of variation according to environment temperature is provided, and emission receives the device that temperature heats automatically in the cavity to visiometer, so that remain its temperature on minimum temperature, thus stably measured result, the measuring accuracy that improves.
The technical solution of the utility model is, a kind of visiometer emission/reception cavity minimum temperature control device comprises it is characterized in that the housing 1 of visiometer,
(1) heater coil 3 concentric with the cavity inner headed face is arranged in the cavity of housing 1, it is wound on the support 4 of a hollow, between heater coil 3 and support 4 insulation course 5 is arranged, and between heater coil 3 and housing 1 insulation course 2 is arranged,
(2) temperature-control circuit is arranged, it is made up of the temperature sensor in the cavity that is installed in housing 16, the temperature controller 7 and the relay 8 that are installed in the visiometer control box, the output signal of temperature sensor 6 is handled through cable input temperature controller 7, closed or the disconnection of the output control relay 8 of temperature controller 7, and then the energising or the outage of control heater coil 3.
Above said heater coil 3 can be bonded as one by insulation course 2 and 5 with support 4, be convenient to processing like this.
The utility model has the advantages that, can the temperature in the housing 1 be remained at more than the design temperature, guaranteed visiometer operate as normal in low temperature environment, improved measuring stability and precision automatically according to the height startup heating arrangement of environment temperature.
Description of drawings.
Fig. 1 is the structure and the scheme of installation of the utility model heater coil.
Fig. 2 is the electrical schematic diagram of the utility model temperature control circuit board.
Below in conjunction with accompanying drawing the utility model is described in further details.Referring to Fig. 1, it is a specific embodiment of the utility model heater coil 3.The axial section of figure middle shell 1 presents step-like, and correspondingly heater coil 3 also will turn to step-likely, can turn to two coils, is together in series then.The member and the temperature control circuit board of visiometer are installed in the inner chamber of heater coil 3.For the ease of producing, can be bonded as one with heater coil and support 4 or with housing 1 with megohmite insulant, it is bonding for example to use epoxy resin to carry out.Fig. 2 is the electrical schematic diagram of control circuit board.Temperature sensor 6 is experienced the temperature in the cavity, exports the electric signal corresponding with temperature.This signal is sent into temperature controller, compares with predefined temperature value, if less than setting value, then the signal of an engage relay 8 of temperature controller 7 outputs is connected relay 8, heater coil 3 energising heating.When temperature rose to design temperature in the cavity, temperature controller 7 output low levels disconnected relay 8, stop heating.If the output of temperature controller 7 is greater than setting value, then relay 8 keeps off-state, and heater coil is not worked.Provide the concrete device model of an embodiment below.Temperature sensor 6 PT100 type, temperature controller 7 uses AL808D, its temperature setting range is very wide, from-999～+ 999 ℃, for example can be set at 10 ℃, if environment temperature is lower than 10 ℃, then 3V DC voltage of AL808D output makes relay 8 closures, heater coil 3 work make temperature rising in the cavity.When temperature surpassed 10 ℃, temperature controller 7 output low levels disconnected relay 8, and heater coil 3 outages stop heating.
Claims (2)
1, a kind of visiometer emission/reception cavity minimum temperature control device comprises it is characterized in that the housing [1] of visiometer,
(1) heater coil concentric with the cavity inner headed face [3] is arranged in the cavity of housing [1], it is wound on the support [4] of a hollow, between heater coil [3] and support [4], insulation course [5] is arranged, between heater coil [3] and housing [1], insulation course [2] is arranged
(2) temperature-control circuit is arranged, it is made up of the temperature sensor [6] in the cavity that is installed in housing [1], the temperature controller [7] and the relay [8] that are installed in the visiometer control box, the output signal of temperature sensor [6] is imported temperature controller [7] through cable and is handled, closed or the disconnection of the output control relay [8] of temperature controller [7], and then the energising or the outage of control heater coil [3].
2, temperature control equipment according to claim 1 is characterized in that, said heater coil [3] is bonded as one by insulation course [2] and [5] with support [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227151 CN2490574Y (en) | 2001-06-15 | 2001-06-15 | Device for controlling temp. of transmitting receiving cavity of visibility meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227151 CN2490574Y (en) | 2001-06-15 | 2001-06-15 | Device for controlling temp. of transmitting receiving cavity of visibility meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490574Y true CN2490574Y (en) | 2002-05-08 |
Family
ID=33642640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01227151 Expired - Fee Related CN2490574Y (en) | 2001-06-15 | 2001-06-15 | Device for controlling temp. of transmitting receiving cavity of visibility meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490574Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132915A (en) * | 2014-08-08 | 2014-11-05 | 南京格术光电技术有限公司 | Small high-performance scattering-type visibility measuring device and measuring method thereof |
-
2001
- 2001-06-15 CN CN 01227151 patent/CN2490574Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132915A (en) * | 2014-08-08 | 2014-11-05 | 南京格术光电技术有限公司 | Small high-performance scattering-type visibility measuring device and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG ZHUOHANG MONITORING & CONTROL EQUIPMENT CO Free format text: FORMER NAME OR ADDRESS: NANFENG AVIATION PRECISION ELECTROMECHANICAL CO., LTD., LUOYANG |
|
| CP03 | Change of name, title or address |
Address after: 471009 box 73, box 030, Kuang Aining, Luoyang, Henan Patentee after: Luoyang Zhuohang Measuring & Controlling Apparatus Co., Ltd. Address before: 471003 box 32, box 069, Luoyang Patentee before: Nanfeng Aviation Precision Electromechanical Co., Ltd., Luoyang |
|
| DD01 | Delivery of document by public notice |
Addressee: Luoyang Zhuohang Measuring & Controlling Apparatus Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Luoyang Zhuohang Measuring & Controlling Apparatus Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020508 Termination date: 20100615 |