CN2303315Y - Infrared Light Wavelength Modulator - Google Patents
Infrared Light Wavelength Modulator Download PDFInfo
- Publication number
- CN2303315Y CN2303315Y CN 96233846 CN96233846U CN2303315Y CN 2303315 Y CN2303315 Y CN 2303315Y CN 96233846 CN96233846 CN 96233846 CN 96233846 U CN96233846 U CN 96233846U CN 2303315 Y CN2303315 Y CN 2303315Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- time control
- infrared light
- control circuit
- 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
Links
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
An infrared light wavelength modulator is composed of voltage-reducing circuit, rectifying and filtering voltage-stabilizing circuit, time control circuit, switch circuit and infrared heat radiator. AC input signal V01After voltage reduction, rectification, filtering and voltage stabilizing circuit, the DC voltage signal V is outputaOutput signal V after passing through time control circuitbAn input switching circuit having an input signal V02Is an AC input signal, the output signal is an AC whose outer envelope exhibits periodic variationThe signal is modulated by a flow voltage and added to an infrared heat radiator.
Description
The utility model is a kind of electronic device.
Infrared light is a kind of electromagnetic wave.After the heat radiator that can launch infrared light heated, can excite infrared emanation, its peak wavelength λ m=2886/T (μ m) (T=273+t ℃).Thereby, by changing the temperature of heat radiator, can change the infrared light wavelength of institute's radiation.
Although the infrared light heat radiation has been widely used in heating or the baking of paint, grease, plastics, food and other polymer substance or biosome both at home and abroad, obtained good result of use, but up to now, all hot devices of infrared photo-thermal spoke all can only radiation constant peak wavelength.Optionally absorb (promptly passing through resonance absorption) in view of some object has for the infrared light wavelength, the fixing infrared radiator of peak wavelength is difficult to reach the best assimilation effect that shakes that closes for this type objects.If can make the infrared light wavelength carry out cyclical variation within the specific limits, can be particularly conducive to these objects and select the optimum resonance absorption value voluntarily, help improving the result of use of infrared radiator.
The purpose of this utility model, just be to design a kind of electronic device, it can change the temperature parameter of infrared emanation device automatically, utilizes the funtcional relationship between its temperature and the wavelength, makes the radiation peak wavelength of infrared radiator present cyclical variation within the specific limits.
The utility model is that load Z constitutes by reduction voltage circuit (1), rectification filtering voltage stabilizing circuit (2), time control circuit (3), on-off circuit (4) and infrared radiator.Ac input signal Vo1 (can adopt the civil power AC signal) output dc voltage signal V behind circuit such as step-down, rectifying and wave-filtering voltage stabilizing
aV
aBehind the entry time control circuit (3), output time control signal V
bInput switching circuit (4); , another road input signal of on-off circuit (4) is ac input signal V
O2(as the 220V alternating current; The output signal of on-off circuit (4) is that external envelope presents periodically variable alternating voltage modulation signal and adds load.
Figure 1 shows that the basic fundamental design that this reality is novel.
Figure 2 shows that a kind of embodiment of the present utility model.
Figure 3 shows that another embodiment of the present utility model.
Fig. 4 (a)-(b) is depicted as the graph of relation of voltage U on the infrared radiator, temperature T, peak wavelength λ m t variation in time.
Figure 5 shows that a point waveform in the embodiment circuit diagram;
Figure 6 shows that b point waveform in the embodiment circuit diagram;
Figure 7 shows that c point waveform in the embodiment circuit diagram;
Describe the utility model in detail below in conjunction with embodiment.
In technical scheme shown in Figure 2,220 volts of alternating current V
O1Reduce to low-voltage AC (for example 15V) after output dc voltage V behind the rectification filtering voltage stabilizing circuit through decompression capacitor C
a, V
aEntry time control circuit (3).This time control circuit (3) can adopt square-wave oscillator circuit to make it to export the periodic square wave oscillator signal.On-off circuit (4) can be made of pulse transformer N and bidirectional triode thyristor D.The square-wave signal make pulse transformer N of time controller output is elementary.The anode input exchange signal V of bidirectional triode thyristor D
O2, trigger electrode G connects the secondary anode of pulse transformer, and the K utmost point connects the secondary negative terminal of pulse transformer.Load Z also inserts the secondary K of pulse transformer.
In enforcement side shown in Figure 3, integrated circuit (IC)
1And peripheral cell R (LM555),
2, R
3, C
3, C
4Constituted square-wave oscillator (3).Be T '=0.693 (R its oscillation period
2+ R
3) C
3, the square wave output duration is t
1=0.693 (R
2+ R
3) C
3, it is t that square wave is exported off time
2=0.693R
2C
3On-off circuit (4) has then adopted relay J.The time control circuit output signal is through diode D
3With relay coil J
0Join the ac input signal V of this circuit
O2With load Z respectively with relay normally open contact J
HTwo ends join.For the ease of the modulation effect of Direct observation infrared wavelength, can luminous indicator elment in parallel (as bulb) at load Z two ends.
Because the radiation temperature of infrared emanation device has the regular hour inertia with the variation of operating voltage, thereby the saltus step meeting of operating voltage slowly changes load temperature in the load, reaches equilibrium value at last.Utilize this principle of work, the some time after Z reaches equilibrium temperature, time control circuit stops output voltage control signal, causes on-off circuit to be in off state, the load outage, and the loaded work piece temperature will descend gradually; After after a while, time control circuit is output voltage control signal once more, makes on-off circuit be in opening state, the load restoration power supply, and the loaded work piece temperature rises once more gradually.The working result that so goes round and begins again, realized the loaded work piece temperature in time control circuit control signal and change.And then the wavelength X m of infrared radiator is changed thereupon, realized the purpose of infrared light peak wavelength modulation.
Claims (6)
1, a kind of infrared light wavelength modulator is characterized in that by reduction voltage circuit (1), rectification filtering voltage stabilizing circuit (2), time control circuit (3), on-off circuit (4) and infrared emanation device being that load Z constitutes ac input signal V
O1Output dc voltage signal V behind step-down, rectification filtering voltage stabilizing circuit
a, the signal V of output behind time control circuit (3)
bInput switching circuit (4); Another road input signal V of on-off circuit
O2Be ac input signal, output signal is that external envelope presents periodically variable alternating voltage modulation signal and adds load Z.
2, infrared light wavelength modulator as claimed in claim 1 is characterized in that described time control circuit (3) is the square wave oscillator, and output signal is a square-wave signal.
3, infrared light wavelength modulator as claimed in claim 1 is characterized in that described square wave oscillator is made of integrated circuit LM555 and peripheral cell thereof.
4, infrared light wavelength modulator as claimed in claim 1, it is characterized in that described on-off circuit can be made of pulse transformer N and bidirectional triode thyristor D, pulse transformer elementary turn-on time control circuit output terminal, the anode input exchange signal of bidirectional triode thyristor, filp-flop stage G connects the secondary anode of pulse transformer, and the K level connects the secondary negative terminal of pulse transformer.
5, infrared light wavelength modulator as claimed in claim 1 is characterized in that described on-off circuit is a relay J, and the output signal of time control circuit is through diode D
3With relay coil J
0Join ac input signal V
O2With load Z respectively with relay normally open contact J
HTwo ends join.
6, infrared light wavelength modulator as claimed in claim 1 is characterized in that described time control circuit is the square wave oscillator, by integrated circuit LM555 and R
2, R
3, C
3, C
4Constitute, described on-off circuit (4) adopts relay J
0Described time control circuit output signal is through diode D
3With relay coil J
0Join the ac input signal V of this circuit
O2With load Z respectively with relay normally open contact J
HTwo ends join, and are parallel with luminous indicator elment at load Z two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233846 CN2303315Y (en) | 1996-10-07 | 1996-10-07 | Infrared Light Wavelength Modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233846 CN2303315Y (en) | 1996-10-07 | 1996-10-07 | Infrared Light Wavelength Modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2303315Y true CN2303315Y (en) | 1999-01-06 |
Family
ID=33910417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96233846 Expired - Fee Related CN2303315Y (en) | 1996-10-07 | 1996-10-07 | Infrared Light Wavelength Modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2303315Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354902C (en) * | 2001-10-05 | 2007-12-12 | 皇家飞利浦电子股份有限公司 | Control method of remote control system and remote control system including radio frequency transceiver system |
| CN102832615A (en) * | 2005-01-18 | 2012-12-19 | 尖端研究公司 | Devices and methods for providing driving voltage to one or a plurality of SPD loads |
-
1996
- 1996-10-07 CN CN 96233846 patent/CN2303315Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354902C (en) * | 2001-10-05 | 2007-12-12 | 皇家飞利浦电子股份有限公司 | Control method of remote control system and remote control system including radio frequency transceiver system |
| CN102832615A (en) * | 2005-01-18 | 2012-12-19 | 尖端研究公司 | Devices and methods for providing driving voltage to one or a plurality of SPD loads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |