CN2650090Y - Imbedded temperature oscillometer - Google Patents
Imbedded temperature oscillometer Download PDFInfo
- Publication number
- CN2650090Y CN2650090Y CN 03277405 CN03277405U CN2650090Y CN 2650090 Y CN2650090 Y CN 2650090Y CN 03277405 CN03277405 CN 03277405 CN 03277405 U CN03277405 U CN 03277405U CN 2650090 Y CN2650090 Y CN 2650090Y
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- max197
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Abstract
The utility model discloses an embedded temperature fluctuation sensor, which comprises a platinum wire probe(1) electrically connected with a temperature fluctuation sensor (2), in particular to the output end of the temperature fluctuation sensor (2) electrically connected with an embedded module (5) and a data transmission interface (6), the embedded module (5) has A/D converters MAX197 and SCM AT89C2051 for conversing the analog signal output from the temperature fluctuation sensor (2) into the digital signal and processing, the data transmission interface (6) is a RS-232 or a RS-485 serial interface for sending the digital signal after processed by the embedded module (5) to the host computer; the MAX197 asterisk pin is connected to the temperature fluctuation sensor (2), the pins (2),(7) and (8) of AT89C2051 are connected with the pins (3),(4) and (5) of MAX197, the pin (8) swung dash asterisk of MAX197 are connected with pin asterisk swung dash asterisk of AT89C2051, the pin (6) of MAX197 is connected with pin asterisk of AT89C2051, the pin asterisk of AT89C2051 is connected with the input end of the data transmission interface (6). The sensor can be widely used for the fields of adaptive optical and laser atmospheric transmission, etc.
Description
Technical field the utility model relates to a kind of temperature measuring equipment, especially inlaid temperature pulse instrument.
Background technology is present, and along with developing rapidly of photoelectric technology, the importance of optical turbulence more and more is subject to people's attention.In Laser Transmission, turbulence effect causes the drift and the expansion of light beam; In image was used, turbulence effect caused the shake and the distortion of image; Turbulent flow also can reduce the resolution of astronomical telescope.For the various phenomenons of quantitative examination laser by turbulent atmosphere, to solve the various optical engineering problems relevant, need understand the optical turbulence structure of light path in depth with these phenomenons, measure subaerial refractive index structure parameter C
n 2Feature, be not only the basis of calculating transmission problem near the ground, also can be used to calculate the C in boundary layer
n 2Distribute.Common measurement instruments has micro-temperature sensor, and is employed as the applicant, and it is made of platinum filament probe and the temperature fluctuation sensor that is electrically connected with it.During measurement, the variation of the small fluctuating of surface air temperature is experienced by the platinum filament probe, is sent to Computer Processing by interface circuit after the temperature fluctuation sensor amplifies it.But the weak point that this micro-temperature sensor exists is that at first, interface circuit is complicated, integrated level is low, job insecurity; Secondly, except that the analog signals of exporting was subject to disturb, the distance of signal transmission also was restricted, and computing machine is had at its signal of short distance reception, and this not only influences the accuracy of platinum filament probe measurement, also need solve the problem that computing machine field work adapts to.
The summary of the invention the technical problems to be solved in the utility model provides a kind of simple and reasonable for structure, practical for overcoming weak point of the prior art, uses inlaid temperature pulse instrument more easily.
The technical scheme that is adopted comprises the platinum filament probe that is connected with the temperature fluctuation sensor electrical, the output terminal of particularly said temperature fluctuation sensor is electrically connected with flush bonding module and data transmission interface successively, said flush bonding module is made up of analog to digital converter MAX197 and single chip computer AT 89C2051, be used for converting the analog signals that the temperature fluctuation sensor is exported to digital quantity and it being handled, said data transmission interface is RS-232 serial line interface or RS-485 serial line interface, is used for the digital quantity signal after the flush bonding module processing is sent to host computer.
As the further improvement of technical scheme, the input port of described analog to digital converter MAX197
,
With
Pin is jointing temp fluctuation sensor, temperature sensor and humidity sensor respectively, be used to receive the analog signals that each sensor is sent here, the control port pin of single chip computer AT 89C2051 2., 7. with 8. with the control port of analog to digital converter MAXl97 3., 4. with 5. pin be connected, be used to control the signal that analog to digital converter MAX197 timesharing receives each sensor, the number ground bus port of analog to digital converter MAX197 7.～the pin connects the number ground bus port pin of single-chip microcomputer AT89C2051
～ is used for exporting the digital quantity signal of conversion to single chip computer AT 89C2051, and the 6. pin of analog to digital converter MAX197 connects the pin of single-chip microcomputer AT89C2051
, being used for signal to single chip computer AT 89C2051 transmission digital quantity end of output, the output port pin of single chip computer AT 89C2051 connects the input end of data transmission interface, is used for the data after handling are sent out; Be serially connected with switch between the output port pin of described RS-232 serial line interface and RS-485 serial line interface and single chip computer AT 89C2051.
Beneficial effect with respect to prior art is, one, the application of the flush bonding module of forming by analog to digital converter MAX197 and single chip computer AT 89C2051, whole integrated level was improved, reduced the failure rate of circuit, stopped the possibility that output signal is disturbed again, can without restriction it be arranged at any place and use; They are two years old, data transmission interface is selected RS-232 serial line interface or RS-485 serial line interface for use, not only make interface circuit become simple, standard, also can select RS-232 or RS-485 according to the distance of need transmission, so that the transmission range of output signal is no longer limited, avoid computing machine to have to be positioned near the of temperature fluctuation sensor and worked in the field, and cause defective to the interference of platinum filament probe measurement accuracy therefrom: they are three years old, have ripe collection and handling procedure among the single chip computer AT 89C2051 stationed, make oscillometer have intellectuality, can carry out the collection of data independently and handle in advance, for the real-time processing in later stage provides basis preferably.
Description of drawings is described in further detail optimal way of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is a kind of embodiment circuit structure diagram of the present utility model.
Embodiment is referring to Fig. 1, and platinum filament probe 1, temperature fluctuation sensor 2, flush bonding module 5 and data transmission interface 6 are electrically connected successively.Wherein, platinum filament probe 1 is that 10 microns, length are 19 millimeters, apart are that two probes of 1 meter constitute by diameter, is used to respond to the variation of the small fluctuating of ground atmospheric temperature.Temperature fluctuation sensor 2 is built-in with amplifying circuit, is used for the ultra-weak electronic signal of platinum filament probe 1 output is amplified without distortion, is beneficial to follow-up processing.Flush bonding module 5 is made up of analog to digital converter MAX197 and single chip computer AT 89C2051, is used for converting the analog signals that temperature fluctuation sensor 2 is exported to digital quantity and it being handled, wherein, the input port of analog to digital converter MAX197
The output terminal of pin jointing temp fluctuation sensor 2,
Pin jointing temp sensor 3,
Pin connects humidity sensor 4, is used to receive the analog signals of temperature fluctuation that above-mentioned three sensors send here, temperature, humidity; The control port pin of single chip computer AT 89C2051 2., 7. with 8. respectively with the control port of analog to digital converter MAX197 3., 4. with 5. pin be connected, be used to control the signal that analog to digital converter MAX197 receives temperature fluctuation sensor 2 or temperature sensor 3 or humidity sensor 4 at times; The number ground bus port of analog to digital converter MAX197 7.～the pin connects the number ground bus port pin of single-chip microcomputer AT89C2051
～ is used for exporting single chip computer AT 89C2051 to converting the temperature fluctuation of digital quantity or the signal of temperature or humidity to; The 6. pin of analog to digital converter MAX197 connects the pin of single-chip microcomputer AT89C2051
, be used for signal to single chip computer AT 89C2051 transmission digital quantity end of output; The output port pin of single chip computer AT 89C2051 connects the input end of data transmission interface 6, is used for the data after handling are sent out.The input end of data transmission interface 6 is a switch 61, and this switch 61 is connected with the input end of RS-232 serial line interface with the RS-485 serial line interface respectively, is used for the digital quantity signal after flush bonding module 5 processing is sent to host computer.
During use, after the utility model energising, under the unified command of single chip computer AT 89C2051, analog to digital converter MAX197 receives the analog signals of temperature fluctuation sensor 2, temperature sensor 3 and humidity sensor 4 at times, and is sent to single chip computer AT 89C2051 after converting these analog signalses to digital quantity; Single chip computer AT 89C2051 is at the variance yields that respectively above-mentioned data (digital quantity) is processed into temperature fluctuation, and after the average of temperature, humidity, is sent to host computer by data transmission interface 6.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (3)
1, a kind of inlaid temperature pulse instrument, comprise the platinum filament probe (1) that is electrically connected with temperature fluctuation sensor (2), the output terminal that it is characterized in that said temperature fluctuation sensor (2) is electrically connected with flush bonding module (5) and data transmission interface (6) successively, said flush bonding module (5) is made up of analog to digital converter MAX197 and single chip computer AT 89C2051, be used for converting the analog signals that temperature fluctuation sensor (2) is exported to digital quantity and it being handled, said data transmission interface (6) is RS-232 serial line interface or RS-485 serial line interface, is used for the digital quantity signal after flush bonding module (5) processing is sent to host computer.
2, inlaid temperature pulse instrument according to claim 1 is characterized in that the input port of analog to digital converter MAX197
Pin is jointing temp fluctuation sensor (2), temperature sensor (3) and humidity sensor (4) respectively, is used to receive the analog signals that each sensor is sent here; The control port pin of single chip computer AT 89C2051 2., 7. with 8. with the control port of analog to digital converter MAX197 3., 4. with 5. pin be connected, be used to control the signal that analog to digital converter MAX197 timesharing receives each sensor; The number ground bus port of analog to digital converter MAX197 7.～the pin connects the number ground bus port pin of single-chip microcomputer AT89C2051
Be used for exporting the digital quantity signal of conversion to single chip computer AT 89C2051; The 6. pin of analog to digital converter MAX197 connects the pin of single-chip microcomputer AT89C2051
Be used for sending the signal of digital quantity end of output to single chip computer AT 89C2051; The output port pin of single chip computer AT 89C2051 connects the input end of data transmission interface (6), is used for the data after handling are sent out.
3, inlaid temperature pulse instrument according to claim 1 is characterized in that being serially connected with switch (61) between the output port pin of RS-232 serial line interface and RS-485 serial line interface and single chip computer AT 89C2051.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277405 CN2650090Y (en) | 2003-07-30 | 2003-07-30 | Imbedded temperature oscillometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277405 CN2650090Y (en) | 2003-07-30 | 2003-07-30 | Imbedded temperature oscillometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650090Y true CN2650090Y (en) | 2004-10-20 |
Family
ID=34331793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277405 Expired - Fee Related CN2650090Y (en) | 2003-07-30 | 2003-07-30 | Imbedded temperature oscillometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650090Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422708C (en) * | 2004-12-14 | 2008-10-01 | 中国科学院安徽光学精密机械研究所 | Near-ground turbulence flow profiler and measuring method thereof |
| CN102539111A (en) * | 2011-12-17 | 2012-07-04 | 中国科学院安徽光学精密机械研究所 | Temperature oscillometer based on dsPIC singlechip |
| CN104317337A (en) * | 2014-10-14 | 2015-01-28 | 大连恒扬光电科技有限公司 | Electric control system for measuring temperature and humidity of transformers |
| CN110836731A (en) * | 2019-11-07 | 2020-02-25 | 南昌大学 | Temperature pulsation appearance based on digital sensing chip |
-
2003
- 2003-07-30 CN CN 03277405 patent/CN2650090Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422708C (en) * | 2004-12-14 | 2008-10-01 | 中国科学院安徽光学精密机械研究所 | Near-ground turbulence flow profiler and measuring method thereof |
| CN102539111A (en) * | 2011-12-17 | 2012-07-04 | 中国科学院安徽光学精密机械研究所 | Temperature oscillometer based on dsPIC singlechip |
| CN102539111B (en) * | 2011-12-17 | 2014-03-05 | 中国科学院安徽光学精密机械研究所 | Temperature oscillometer based on dsPIC singlechip |
| CN104317337A (en) * | 2014-10-14 | 2015-01-28 | 大连恒扬光电科技有限公司 | Electric control system for measuring temperature and humidity of transformers |
| CN110836731A (en) * | 2019-11-07 | 2020-02-25 | 南昌大学 | Temperature pulsation appearance based on digital sensing chip |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |