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EEPW首頁(yè) > 工控自動(dòng)化 > 設計應用 > 激光發(fā)射器/接收器電路

激光發(fā)射器/接收器電路

作者: 時(shí)間:2010-02-09 來(lái)源:網(wǎng)絡(luò ) 收藏

This set of two circuits from the basis for a very simple light wave transmitter. A LASER beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information (voice, data, etc..). The whole thing is very easy to build and requires no specialized parts execpt for the LASER itself. LASERs are available from MWK Industries.

本文引用地址:http://dyxdggzs.com/article/163270.htm

Schematic Of Receiver

Parts:

Part
Total Qty.
Description
Substitutions

C1, C2
2
0.1uf Ceramic Disc Capacitor


C3
1
100uf 25V Electrolytic Capacitor


R1
1
100K Ohm 1/4W Resistor


R2
1
1M Ohm 1/4W Resistor


R3
1
10K Pot


Q1
1
NPN Phototransistor


U1
1
741 Op Amp


U2
1
LM386 Audio Amp


SPKR1
1
8 Ohm Speaker


T1
1
8 Ohm:2K Audio Transformer


MISC
1
Wire, Board, Knob For R3, LASER Tube and Power Supply

Notes:
1. In the transmitter schematic, no ballast resistor is shown because most small LASER power supplies already have one built in. Yours may differ, and a resistor may be needed.

2. The receiver should be kept away from bright lights. You may want to put a piece of wax paper in front of Q1 to keep the LASER from swamping it.

3. In order to get any decent amount of modulation, you may need to drive T1 with more then a watt.

4. The circuit can be made to transmit computer data with the use of two modem chips.

DIY機械鍵盤(pán)相關(guān)社區:機械鍵盤(pán)DIY




關(guān)鍵詞: 電路 接收器 發(fā)射器 激光

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