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Function and testing method of piezoelectric Ceramic

Piezoelectric ceramic is a kind of electroacoustic device with simple structure and light weight. It has been widely used because of its high sensitivity, no magnetic field dispersion and overflow, no copper wire and magnet, low cost, less power consumption, convenient repair, convenient mass production and other advantages.

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Principle of PIR Sensor

PIR sensor is a kind of sensor that uses infrared ray to process data. It has the advantage of high sensitivity. The PIR sensor can control the operation of the drive device. PIR sensors are commonly used in non-contact temperature measurement, gas composition analysis and nondestructive testing, and are widely used in medicine, military, space technology and environmental engineering. For example, the PIR sensor is used to remotely measure the thermal image of the human body surface temperature, and the abnormal temperature can be found.

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What is the difference between glass tube fuse and ceramic tube fuse?

The fuse tube is an electrical element that ensures the safe operation of the circuit and is one of the fuses. The glass tube fuse can effectively prevent the molten metal from splashing on other devices, and also insulate the high temperature. The common glass tube fuse is often used in electronic circuit boards with dense components. It can also be installed in the wire, plug or special fuse seat because it is convenient for quick replacement and maintenance; The closed safety tube can also be used for equipment in explosion-proof places.

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What is a Buzzer : Working & Its Applications

There are many ways to communicate between the user and a product. One of the best ways is audio communication using a buzzer IC. So during the design process, understanding some technologies with configurations is very helpful. So, this article discusses an overview of an audio signaling device like a beeper or a buzzer and its working with applications.

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FBelec Spring Festival Holiday Arrangement

Time flies. 2023 Chinese New Year is coming soon. Thank you very much for your support to FBelec in the past year,FBELE Spring Festival holiday arrangement in 2023 is as follows:

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The Function and Principle of Oral Irrigator

In recent years, oral irrigators have become increasingly popular in China, which shows that people are paying more and more attention to their oral health. Today, FBelec summarizes some knowledge about dental irrigators What is the function of oral irrigator?

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The Common Usage Problems of Micro Switch

I believe many people have encountered common problems about the use of micro switches. Many people do not know what to do or how to deal with them. They do not know much about the basic knowledge of micro switches. Let's first explain the common problems about the use of micro switches and let's get to know them together.

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Development of new energy charging industry

Under the background of global resource conservation and green economy development, new energy vehicles are developing rapidly. As the power guarantee of Electric Vehicle (EV) Charging Stations, charging piles are highly concerned by the government and the industry. With the gradual maturity of the entire new energy vehicle industry chain and the gradual release of market demand, in 2021, the structural supply of charging infrastructure to cities will be significantly improved in the design of supporting facilities for new energy products in the industry. However, in order to truly achieve a green economy, the construction of supporting infrastructure such as charging piles should cover rural areas.

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The Principles, skills and precautions of massage guns

Fascia Gun & Massage is also called vibration massage gun or fascia gun. In recent years, with the rise of fitness trend and the rise of health care awareness, coupled with the fact that modern people often suffer from back pain, muscle soreness after exercise, or stiff shoulders and neck caused by sitting for a long time using a computer, it has led to the development of muscle massage guns. Popularity.

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How to distinguish the good and bad quality of heat shrink tube

In the field of heat shrinkable sleeves, the manufacturers are uneven, and the quality is uneven. There are even some heat shrinkable sleeve manufacturers who sell poor quality heat shrinkable sleeves at the price of high-quality products in order to better obtain a lot of rights. Customers also thought they were buying very good quality items. So how to distinguish the quality of heatshrink? Those who have a laboratory also find a state company, which can test the characteristics of the heat shrinkable sleeve according to the instrument. However, most customers probably also do not have special equipment for testing the properties of heat-shrinkable sleeves. There are many easy ways to teach you here

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FBelec introduced three automatic production lines for piezo buzzer

The rising labor cost and the gradual disappearance of the demographic dividend are common problems faced by manufacturing enterprises. To this end, "machine substitution" has become the only choice for enterprises to break the bottleneck of development and transform and upgrade. A few days ago, FBelec introduced three fully automatic buzzer lines, which accelerated the company's pace of "machine substitution".

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Why Selfie Ring Light are so popular?

It is very simple to use: put the beauty light in front of the anchor, and clip the phone to the middle of the light circle to shoot. The effect taken in this way is usually evenly exposed and has less dark areas of shadow, which is very popular with Internet celebrity anchors! In addition, the beauty lamp can also create a unique ring-shaped eye light, just like wearing a color contact lens, which obviously makes the eyes look more aura, especially when taking selfie short videos and close-ups of the face. However, the role of the beauty light is not only these, this special specification and shape of the beauty light, compared with ordinary photography lights, there are many other uses - although it may not be its design use, but it is equally easy to use .

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Comparing MEMS and Electret Condenser (ECM) Microphones

Perhaps you remember the marketing campaign from a few years ago with the phrase, "Can you hear me now?" More and more devices being designed today, from wearables to home assistants, are being asked to "hear" their environment. The correct microphone makes it possible for applications to accurately capture almost any sound, with the two most common technologies used for constructing microphones being MEMS and electret condenser. Although the two technologies work on similar principles, there are many use cases for choosing one over the other. With that in mind, we will review MEMS and electret condenser microphone basics, compare the differences between the technologies, and outline the advantages of each solution.

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How to use heat shrink tube?

We all know that the most critical functions of PVC heat-shrinkable sleeves are insulation, sealing, and anti-corrosion. How to install such a high-temperature heat-shrinkable tube before it can be used? Will it be very risky if you are not careful? Ignite the lighter, insert the heat shrink tube into the flame, and shake the flame back and forth along the radial direction of the tube for about 2 or 3 seconds. If the PVC heat shrinkable sleeve is thick and long, it is necessary to consider extending the baking time as appropriate. There's really no way to do it, just try it, if you don't burn it.

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Main technical indicators of electret condenser microphone

The main technical indicators of the microphone include the output impedance, sensitivity, frequency response, transient response, directional characteristics, harmonic distortion, inherent noise of the microphone, equivalent noise level ENL, maximum sound pressure level, dynamic range of the microphone, and signal-to-noise ratio. .

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Which Dip Switch Supplier is the Best in China

The DIP switch was originally developed by Japan's OMRON, also known as DIP switch, overclocking switch, address switch, digital switch, DIP switch, is an address switch used for operation control, in layman's terms It is a miniature switch that can be toggled by hand, and it mainly uses the binary coding principle of 0/1.

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