Principle of PIR Sensor

2022-11-25

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.

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

2022-11-18

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.

What is a Buzzer : Working & Its Applications

2022-11-15

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.

The Common Usage Problems of Micro Switch

2022-10-21

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.

Development of new energy charging industry

2022-10-14

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.

The Principles, skills and precautions of massage guns

2022-09-29

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.

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

2022-09-27

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

Why Selfie Ring Light are so popular?

2022-09-16

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 .

Comparing MEMS and Electret Condenser (ECM) Microphones

2022-09-15

How to use heat shrink tube?

2022-09-07

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.

Main technical indicators of electret condenser microphone

2022-09-02

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. .

Which Dip Switch Supplier is the Best in China

2022-08-26

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.

The past and present of USB connectors

2022-08-19

Electronic technology is changing with each passing day, and the USB connector interface, which is widely used in electronic computers and mobile phones, is naturally an exception. Before the advent of the USB interface, there were various interfaces on the computer. Such as the previous serial mouse, PS/2 interface keyboard, connecting serial game equipment, parallel port connecting needle printer, etc.

The Characteristics and Principle of Ultrasonic Cleaning Machine

2022-08-03

Nowadays, both the catering industry and the manufacturing industry have successively used ultrasonic cleaning machines as special tools for daily cleaning. In fact, we also have many applications of ultrasonic cleaning machines in our daily life, such as cleaning machines in glasses shops and jewelry stores, and small household cleaning machines. machine etc. So what is the cleaning effect of the ultrasonic cleaner? FBelec will take you to find out.

How To Maintain Automotive Cigarette Lighter

2022-07-21

Automotive cigarette lighter is a piece of equipment in a car. The cigarette lighter adapter in the traditional sense takes electricity from the car power supply and heats electric heating units such as metal heating sheets or metal heating wires, and provides a fire source for lighting cigarettes.

What is a Mechanical Buzzer

2022-07-14

FBelec is one of the professional acoustic device company in China. The company has more than 500 square meters of workshop, more than 30 skilled workers and 6 experienced engineers. We mainly produce SMD buzzers, piezoelectric buzzers, piezoelectric ceramic sheets, electromagnetic buzzers, speakers, receivers and other electro-acoustic components. Today we will explain to you the mechanical buzzer.

The difference and common types of FFC connectors and FPC connectors

2022-07-06

Today's connector forms and structures are ever-changing. With the application object, frequency, power, application environment, etc., there are various forms of connectors. FFC connector is a flexible flat cable connector.

The Application of Piezo Atomizer

2022-06-24

The service life of the Ultrasonic Humidifier Ceramic Atomizer is about 3000 hours, and it is very easy to replace. Its service life is also related to the quality of the water. If scale is deposited on the atomizer, please clean it with a soft cloth.

What is WIFI module

2022-06-16

The function of the WIFI module interface is to convert the serial port data into wireless network data, so that the serial port device can be connected to the wireless network. The commonly used communication interfaces of WiFi modules generally include these types: UART interface, SPI interface, I2C interface, I2S interface, SDIO interface, USB interface, RGMII interface, RMII interface, etc.

The Vehicle Back Up Alarms of FBelec

2022-06-09

Founded in 1997, FBelec is a professional electro-acoustic product manufacturer that has been certified by the ISO9001 quality system and integrates scientific research, design, production and sales. The main products include: Vehicle Back Up Alarms , car reversing alarm , automotive electronics Speakers, runway-shaped speakers, multimedia speakers , cavity speakers, bluetooth speakers, bluetooth speakers , reversing buzzer , etc., and has an independent office in Ningbo, you can find FBelec for customized reversing alarms.

The function and installation of the Siren&Alarm

2022-05-25

What is the function of the sound and light alarm? It is a Audible Alarms device. When a fire occurs on the scene and it is confirmed clearly, the light alarm will be automatically turned on, and the group will send out a strong sound and light alarm signal, so as to remind the scene personnel to pay attention to the fire and quickly escape.

Toy Speaker From FBelec

2022-05-12

Toy speakers, also known as "Mini Toy Speaker", are a very commonly used electro-acoustic transducer. Toy speakers are mainly used in the series of sound-emitting toys. For the sound-emitting effect of toys, it is one of the most important components.

What is gas flow sensor

2022-05-06

Ultrasonic gas flow sensor have the advantages of high measurement accuracy, large turndown ratio, and small pressure loss, and have been approved by government agencies in many countries as a legal measurement tool for natural gas trade settlement.

What is Magnetic Contact

2022-04-26

Magnetic door switch is a common safety protection and alarm device in life, mainly used to detect whether doors, windows, drawers,

Chip Sorting Basics

2022-04-21

Chip is also known as microcircuit, microchip, integrated circuit, which is actually a general term for semiconductor component products.

The difference between integrated circuits and chips

2022-04-11

Chips are a way of miniaturizing circuits in electronics. They are generally fabricated on the surface of semiconductor wafers. Chips are used in a wide range of functions. It is said that large and small electronic devices around us need chips, and chips are the soul of a device.

Testing of Ultrasonic Sensors

2022-04-08

Ultrasonic sensors are widely used in life. Today, FBelec will explain the ultrasonic testing for you. According to the characteristics of the object to be detected, such as volume, material, and whether it is movable,HC-SR04 ultrasonic sensors Distance Sensor use different detection methods. There are four common detection methods as follows:

How is the model of the chip named

2022-04-06

The IC naming method is generally: letter + number + letter.The first letter is the abbreviation of chip manufacturer or a integrated circuit family. For example, most of the start of MC is Motorola, and most of the start of Max is Meixin.integrierter Schaltkreis

Empowering the development of 5G and AIoT,wireless communication modules usher in a big explosion

2022-03-29

In recent years, the scale of the global IoT market has grown rapidly, and the number of connected devices has increased year by year. According to statistics from ABI Research, a global technology market consulting firm, the global shipments of cellular IoT devices will exceed 1.6 billion units in 2024, of which LTE Cat M and NB-IoT will occupy the mainstream, while global 5G IoT terminal shipments will reach There will be more than 20 million units in 2024.

How to distinguish magnetic buzzer and piezo buzzer?

2022-03-29

Buzzer is a common sounding component, which is widely used in various electronic products for alarms or reminders. Buzzers are used in washing machines, microwave ovens, mixers, alarm clocks, remote control cars, calculators, etc. at home. There are two types of buzzers: piezo buzzer and magnetic buzzer.

FBelec’s Mylar Speaker

2022-03-24

A lot of speakers are used in our life.Common speakers include mylar speaker, loud speaker,micro speaker, ultrasonic speaker,ceiling speaker,garden speaker,party speaker and so on. Today we will explain some knowledge about intercom speaker.

20K Piezoelectric Ceramic Ring from FBelec

2022-03-18

Piezoelectric ceramics is an information-functional ceramic material that can convert mechanical energy and electrical energy into each other - piezoelectric effect. In addition to piezoelectricity, piezoelectric ceramics also have dielectric properties, elasticity, etc., and piezo ceramic and piezo ceramic rings have been widely used in medical imaging, Acoustic sensors, acoustic transducers, ultrasonic motors, etc.

Concept of buzzer audio frequency and sound pressure

2022-03-17

There are various parameters of the magnetic sounder, some of which are parameters in the Piezzo Buzzer circuit, such as voltage,