Infrared induction and high frequency induction do power switch kind of good 5

1.The human body can emit infrared heat, and the use of this characteristic has made a human body pyrothermal infrared detector, which is the alarm of the white semi-original cylinder on the market, which is used for indoor anti-theft, and there is also a white round, generally installed on the top of the room, and a dark infrared alarm installed on the courtyard wall. There is also a long cable-like window protection radar, which is installed on the window beams outside the house, and these are infrared sensors.

Infrared induction must be in the face of the detection window for lateral movement to be effective, when facing the detection window for longitudinal movement that is slowly approaching the window, the alarm response is slow or ineffective, when the temperature reaches more than 30 degrees, because the detection chip and the ambient temperature is close to or equal to the temperature of the human epidermis, the detection alarm is completely invalid, so in the summer with the human body infrared alarm is not effective.

So if you use infrared sensing as a switch, I'm afraid it won't work in the summer when the temperature is high.

The detection of people by high-frequency induction is relatively stable, but high-frequency can pass through strong bodies, and partition walls can also be detected, so you should pay attention to it when making it.

If it is used for corridor lights, it is better to use the sound control principle. There are finished voice-activated lights for sale.

For personal needs, I think infrared sensing is better.

Infrared induction anti-interference is stronger, and the higher frequency sensing circuit is simple, and the requirements are not as high as high frequency.

Categories: Education Science >> Science & Technology >> Engineering Technology Science Problem Description:

Is an infrared sensor switch a photoelectric switch? Please everybody me.

Analysis: Infrared sensor switch is not a photoelectric switch.

Infrared is an invisible light source that is received by direct or reflected light and magnified to turn on and off. In addition, it can also use the biological infrared heat emitted by the person to make a switch, which is what we usually call the infrared detector or the human pyrothermal infrared detection switch, which can detect and sense the temperature of the biological or human body, because its detection chip is the same as the ambient temperature, when the person and the organism make lateral movement in the detection window, it causes a small signal voltage change of the chip, which is amplified by the first-level operational amplifier, enters the second-stage comparison voltage, and finally amplifies the drive relay switch. It could be the temperature infrared switch you are talking about.

It can be used as a human light switch, anti-theft device, etc.

Photoelectric switch is visible light, mainly with photoresistor or semiconductor, when the resistance value becomes smaller than the nature of the wire, when the light is not resisted, it can be regarded as not passable, and it can be made into a switch by using its conduction and non-passing.

Home sensor switch, infrared is good, and it is said that the touch type is good?

Home sensor switch, infrared is good, and it is said that the touch type is good? Kiss! Hello, happy to answer your <>

When the pro-infrared induction switch has good performance and touches the delay switch, as long as you touch the electrode with your finger, the light will be lit, and it will automatically turn off after a delay of about 1 minute, and it can directly replace the ordinary switch, and you don't have to change the scope of indoor wiring: This product is suitable for automatic lighting in corridors, corridors, basements, garages and other places, safe, energy-saving, convenient Features:

1. When using, you only need to touch the metal sheet of the switch to turn on the work, and the switch will automatically close after a period of time 2. Application control, the switch will automatically detect the insulation resistance control to the ground, and the operation will be more reliable and error-free. 3. Non-contact electronic switch to prolong the service life of the load. 4. Touching the safety voltage of the human body with the zero line voltage of the ground pole of the metal sheet is less than 36V, and it is harmless to the human body when used.

5. The unique two-system design, directly replacing the switch use, can drive all kinds of loads (fluorescent lamps, energy-saving lamps, incandescent lamps, fans, etc.), I hope mine can help you <>

Do you have any other questions?

The progress and development of science and technology have made us more and more small ideas in life, and many of our daily things are becoming more and more intelligent and diverse. What should we pay attention to when purchasing? Let's take a look.

OneHow about the infrared sensor switch

1. When it comes to our infrared induction switch, it is still relatively easy to use, because when the position of the heat source changes, the induction switch turns on the corresponding electrical equipment, such as light bulbs.

2. Now the infrared induction switch used for human body induction must have a Fresnel lens, when the human body moves, the Fresnel lens will give the sensor the fluctuation of the detection amount, that is, flashing, so that it can detect human activity, sense the infrared corresponding to the temperature of the human body, and trigger the action of the induction switch.

3. Now our infrared sensor switch is still more common in some places, which can bring convenience to our lives and prevent us from forgetting to turn off the lights.

IITips for purchasing sensor switches

Recognize the logo to see the structure of the change

Now we commonly use the rated current of the general switch of the family is 16A, the socket current is 10A, the socket of the air conditioner and water heater is larger than 16A, and the good product clearly identifies the usable current strength, while the identification of the inferior product is vague and the data is exaggerated, so we must look carefully at this point.

Check the face and cover the selection of materials

We all know that a good switch panel is difficult to remove directly if you use your hands, so this requires us to use certain tools, but the switch with bad quality is easy to remove by hand, so we can use the index finger and thumb to press the face cover diagonally into an end point when purchasing, one end is pressed and held still, and the other end is pressed hard, and the product quality of the face cover is loose and sagging, and the quality is credible.

3. For the purchase of our induction switches, most of the switches with good quality are made of bulletproof glue and other materials, with high fire performance, moisture-proof performance, anti-impact performance, etc., and a smooth surface. Therefore, for our switches with stiffer springs, there is a sense of strength when used, while inferior switches are very soft, and even the switch handle often stops in the middle position, causing potential safety hazards.

Through the above introduction, we can know that the market of our infrared sensor switch is still good, and it can also bring us convenience to a certain extent, so we should choose good products according to our own needs when purchasing.