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Optical coupling phenomenon demonstration instrument

A demonstration instrument and phenomenon technology, applied in the field of optical coupling phenomenon demonstration instrument, can solve the problems of no instrument, etc., and achieve the effect of intuitive image, convenient carrying, and intuitive demonstration

Inactive Publication Date: 2015-01-28
YANCHENG INST OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is no instrument that can demonstrate the phenomenon of optical coupling in the teaching of electronic technology courses. This demonstration instrument can directly demonstrate the phenomenon of optical coupling to students

Method used

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  • Optical coupling phenomenon demonstration instrument
  • Optical coupling phenomenon demonstration instrument
  • Optical coupling phenomenon demonstration instrument

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] DC power supply (E 1 ) through the power switch (S 1 ), resistance (R 1 ) Apply the voltage between the anode and cathode of the light-emitting diode (VD), the DC power supply (E 2 ) through the power switch (S 2 ), resistance (R 2 ), resistance (R 3 ), resistance (R 4 ) to the phototransistor (VT 1 ), triode (VT 2 ) power supply, phototransistor (VT 1 ) emitter and transistor (VT 2 ) is connected to the base, and the ohmmeter (Ω) is connected to the cathode of the light-emitting diode (VD) and the phototransistor (VT 1 ) is used to demonstrate the isolation phenomenon between the emitters, and the bulb (H) is connected in series with the triode (VT 2 ) on the collector, the voltmeter (V) and the triode (VT 2 ) of the emitter resistance (R 4 ) in parallel, use a bulb (H) and a voltmeter (V) to demonstrate and measure the phototransistor (VT 1 ) status and data. Light-emitting diode (VD) and phototransistor (VT 1 ) is placed on the left and right sides in ...

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Abstract

The invention relates to an optical coupling phenomenon demonstration instrument, and belongs to the field of electronic experiment instruments. A circuit is composed of a direct-current power supply E1, a power switch S1, a resistor R1, a light-emitting diode, a phototransistor, a transistor, a resistor R2, a resistor R3, a resistor R4, a power switch S2, a direct-current power supply E2, a bulb H, a voltmeter V and an ohmmeter, and is characterized in that the direct-current power supply E1 supplies power to the light-emitting diode, the direct-current power supply E2 supplies power to the phototransistor and the transistor, the ohmmeter is used for demonstrating the optical coupling phenomenon, the bulb H and the voltmeter V are used for demonstrating and measuring the state and data of the phototransistor, the light-emitting diode and the phototransistor are placed on the left side and the right side inside a rectangular box, a wood board capable of being drawn upwards is arranged in the middle of the rectangular box, and a wood board capable of being dawn rightwards is arranged on the front face of the rectangular box. The optical coupling phenomenon demonstration instrument has the advantages of being visual in demonstration, convenient to carry and capable of demonstrating the optical coupling phenomenon to students visually.

Description

technical field [0001] The invention relates to an optical coupling phenomenon demonstration instrument, which belongs to the field of electronic experimental instruments. Background technique [0002] At present, there is no instrument that can demonstrate the optical coupling phenomenon in the teaching of electronic technology courses. This demonstration instrument can directly demonstrate the optical coupling phenomenon to students. Contents of the invention [0003] The object of the present invention is to provide an instrument capable of demonstrating the optical coupling phenomenon, which can demonstrate the optical coupling phenomenon conveniently and intuitively. [0004] The purpose of the present invention is achieved in that the optical coupling phenomenon demonstrator is powered by the DC power supply E 1 , power switch S 1 , resistance R 1 , Light-emitting diode VD, phototransistor VT 1 , Transistor VT 2 , resistance R 2 , resistance R 3 , resistance R...

Claims

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Application Information

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IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 杨国平
Owner YANCHENG INST OF IND TECH
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