CN201885798U - Irradiance measurement device for infrared remote controller - Google Patents
Irradiance measurement device for infrared remote controller Download PDFInfo
- Publication number
- CN201885798U CN201885798U CN201120101415XU CN201120101415U CN201885798U CN 201885798 U CN201885798 U CN 201885798U CN 201120101415X U CN201120101415X U CN 201120101415XU CN 201120101415 U CN201120101415 U CN 201120101415U CN 201885798 U CN201885798 U CN 201885798U
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- signal
- remote controller
- infrared remote
- photoelectric tube
- measurement device
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Abstract
The utility model discloses an irradiance measurement device for an infrared remote controller, which is characterized in that the irradiance measurement device comprises a photoelectric tube and a current signal amplifier connected with the photoelectric tube and used for amplifying an electrical signal of the photoelectric tube. The irradiance measurement device for the infrared remote controller utilizes the photoelectric tube to receive a signal of the infrared remote controller; and an infrared signal is converted into a current signal after being subjected to the photoelectric conversion of the photoelectric tube; and the current signal is converted into a voltage signal after being converted by a current amplification circuit.
Description
Technical field
The utility model relates to a kind of Infrared remote controller irradiance measurement device, the irradiance measurement when being used for the Infrared remote controller detection.
Background technology
Present telepilot majority is to adopt infrared ray as remote signal, and telepilot is made up of infrared reception and radiating circuit, signal conditioning circuit, central controller, program and data-carrier store, keyboard and condition indication circuit.Be the telepilot reliable in quality that assurance is dispatched from the factory, need the finished product telepilot is carried out quality test after production is finished.Infrared remote controller infrared intensity---irradiance, in the standard GB/T 14960-94 " TV-set broadcasting receiver infrared remote-control emitter technical requirement and measuring method ", require Infrared remote controller under rated voltage 3V power supply state, rectilinear direction is greater than 40uW/cm
2, about 15 ° greater than 20uW/cm
2Under the under-voltage condition, rectilinear direction is greater than 20uW/cm
2, about 15 ° greater than 10uW/cm
2Therefore, need provide a kind of device that can be used in the Infrared remote controller irradiance measurement, infrared signal is converted to the standard electric signal that can be fit to measurement instrument.
The utility model content
The purpose of this utility model is to provide a kind of Infrared remote controller irradiance measurement device, and the irradiance measurement when being used for the Infrared remote controller detection is converted to infrared signal the electric signal that can be fit to measurement instrument.
The utility model adopts following technical scheme: a kind of Infrared remote controller irradiance measurement device comprises that photoelectric tube and being used for of being connected with photoelectric tube carry out the amplified current signal amplifier to the photoelectric tube electric signal.
Described current signal amplifier can be signal conditioning circuit, adopts modulate circuit not only current signal can be amplified, and also is convertible into digital signal, testing result is input to computing machine or digitizing Displaying Meter.
Described signal conditioning circuit comprises prime instrument differential amplifier circuit and back two-stage calculation amplifying circuit, and 5uW/cm is arranged
2-50uW/cm
2And 30uW/cm
2-100uW/cm
2Two grades of outputs.
Described instrument differential amplifier circuit adopts INA118.
Described operational amplification circuit adopts CA324.
Infrared remote controller irradiance measurement device of the present utility model utilizes photoelectric tube to accept the Infrared remote controller signal, and infrared signal is converted to current signal through after the opto-electronic conversion of photoelectric tube, changes voltage signal into through current amplification circuit again.
Description of drawings
Fig. 1 is the schematic diagram of Infrared remote controller irradiance measurement device of the present utility model;
Fig. 2 is the schematic diagram of signal conditioning circuit.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, to help understanding content of the present utility model.
As shown in Figure 1, a kind of Infrared remote controller irradiance measurement device comprises that photoelectric tube 2 and being used for of being connected with photoelectric tube carry out amplified current signal amplifier 3 to the photoelectric tube electric signal.Utilize photoelectric tube to accept the infrared signal of Infrared remote controller 1, infrared signal is converted to current signal through after the opto-electronic conversion of photoelectric tube 2, changes the voltage signal input into through current amplification circuit 3 again.Computing machine or correlate meter are accepted this normal voltage signal and are carried out data analysis and illuminance demonstration.
The signal conditioning circuit that current amplification circuit 3 has adopted in the present embodiment among Fig. 1, adopt signal conditioning circuit to convert measured signal to standard signal that collecting device can be discerned by operations such as amplification, filtering, be used for data acquisition, control procedure, execution and calculate and show and read or the digital signal of other purposes with simulating signal is transformed to, to adapt to the requirement of digitizer.
As shown in Figure 2, signal conditioning circuit in the present embodiment comprises that prime instrument differential amplifier circuit U302 suppresses common-mode signal to amplify difference mode signal, and back two-stage calculation amplifying circuit U303C, U303D, because of different remote irradiance difference is bigger, adopt the two-stage calculation amplifying circuit can realize 5uW/cm
2-50uW/cm
2And 30uW/cm
2-100uW/cm
2Two grades of outputs.
What instrument differential amplifier circuit U302 was more satisfactory is to adopt INA118, INA11 is the accurate low-power consumption instrument amplifier that U.S. B-B company produces, it has precision height, low in energy consumption, advantage such as common-mode rejection ratio is high and working band is wide, is fit to various tiny signals are amplified.The current feedback structure of INA118 uniqueness makes it at the higher following higher frequency span (G=100 is frequency span 70Hz) that also can keep that increases.Its peripheral circuit is very simple, and its gain can be regulated by outside adjustable gain resistance R 313.
Back two-stage calculation amplifying circuit U303C, U303D adopt CA324, and CA324 is an Intersil company product, and 1MHz No. four high gain operational amplifiers can be used for commerce, industrial amplifier and Military Application.Input drift current, input offset current, input offset voltage are all very little.
Claims (5)
1. Infrared remote controller irradiance measurement device is characterized in that comprising that photoelectric tube and being used for of being connected with photoelectric tube carry out the amplified current signal amplifier to the photoelectric tube electric signal.
2. device as claimed in claim 1 is characterized in that described current signal amplifier is a signal conditioning circuit.
3. device as claimed in claim 2 is characterized in that described signal conditioning circuit comprises prime instrument differential amplifier circuit and back two-stage calculation amplifying circuit, has 5uW/cm
2-50uW/cm
2And 30uW/cm
2-100uW/cm
2Two grades of outputs.
4. device as claimed in claim 3 is characterized in that described instrument differential amplifier circuit adopts INA118.
5. as claim 3 or 4 described devices, it is characterized in that described operational amplification circuit adopts CA324.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120101415XU CN201885798U (en) | 2011-04-08 | 2011-04-08 | Irradiance measurement device for infrared remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120101415XU CN201885798U (en) | 2011-04-08 | 2011-04-08 | Irradiance measurement device for infrared remote controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885798U true CN201885798U (en) | 2011-06-29 |
Family
ID=44183343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120101415XU Expired - Fee Related CN201885798U (en) | 2011-04-08 | 2011-04-08 | Irradiance measurement device for infrared remote controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061750A (en) * | 2021-11-09 | 2022-02-18 | 珠海格力智能装备有限公司 | Infrared light intensity detection device and method |
-
2011
- 2011-04-08 CN CN201120101415XU patent/CN201885798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061750A (en) * | 2021-11-09 | 2022-02-18 | 珠海格力智能装备有限公司 | Infrared light intensity detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20130408 |