DIYinfrared detector----- IR DETECTOR

DIY infrared detector, Ir detector Keywords: infrared detection circuit Be Author: Monday White light can decompose into red, orange, yellow, green, blue, blue, and purple, and there is also a person in the red side of the red, called infrared light. Near red light is a short wavelength infrared, away from red, is a long wavelength. People or animals constantly emit long-wavelength infrared rays, even at night, special sensitive snakes that are particularly sensitive to infrared lines can also see the target launch attack. Using this principle, the thall snake missile can track the tail of the high temperature aircraft. The TV, DVD, and air conditioners can be used as remote control with short-wavelength infrared. Can we detect the infrared rays around you? As long as 4 components: an integrated infrared optoelectronic sensor for a television machine, a piezoelectric ceramic piece, a 9V integrated battery and battery buckle can do test. The sensor has 3 feet, 1 foot, 2 foot distance is closer, 2 feet, 3 feet distance far, 2 feet in the middle. Pick up the black line (negative electrode) of the battery buckle of the battery, 2 foot (positive electrodes) of the battery buckle. The piezoelectric ceramic sheet has two leads, one picks up 3 feet, and another pin. You can do not need to sold iron, you can turn the lead wire. At this time, the side of the half cylinder is pressed by a TV or other remote control. You can hear "-" ring. It is still still able to sound in a piece of paper. Using cloth, plastic bag is separated, try to use the mirror sensor sensor, no ringing? What sound can you hear? The experiment is shown in the figure above. Be The electronic music sheets have two categories of music and speech synthesis, the latter requires 2 resistors, capacitors. A triode drive horn is generally required. It is not difficult to install the specification. One of these triggers is connected to the sensor rhyme 3 feet, as shown in the figure. What effect will there be? The remote control is pressed, playing "Happy Birthday" music. What else can you do? There is a dog called electronic music piece, then you can place the above picture after a dog's picture, there is a firecracker music piece, draw a firecracker map, press a light-emitting diode ... full of imagination, make interesting Toys: Little by remote control, firecrackers have light, want to call, dog call, to the cat, dog according to the remote control. If the electricity remote control is out of the family, it is the remote control problem or the appliance is broken? Try it with the above two infrared detectors.

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