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A resistor is a current-limiting element. When a resistor is connected to a circuit, it can limit the amount of current passing through the branch it is connected to. The resistance value of the resistor is fixed, generally two pins, and the one with constant resistance value is called a fixed resistor. Resistors are widely used in circuits, and then ATO will introduce the application scenarios and functions of resistors to you.

In large-scale engineering activities, people always need to measure the distance inevitably. When people measure the distance, they mostly use the distance meter, which is not only convenient to use, but also accurate in measurement process. So what is a distance meter? How does the distance meter work? Below we will introduce the knowledge about the distance meter in detail, including the definition and working principle of the distance meter, hoping to help friends in need.

The electric soldering iron is a tool used to solder components or wires, and can be used for mobile phone repairs, electronic production, etc. The use of electric soldering iron requires strong technical skills, and professional selection can make it more convenient for us to use the soldering iron. Next, ATO will introduce to you the selection guidance for electric soldering irons.

As an instrument for detecting the concentration of carbon dioxide, carbon dioxide sensors are widely used in the living environment, plant cultivation, cultural relics, and archives protection. Next, ATO will take you to learn how to choose a suitable carbon dioxide sensor.

The electric reciprocating saw is a tool that is driven by a motor and used to cut various materials through the reciprocating and swinging actions of the saw blade. It is faster and less labor-intensive than the manual saws that people use every day. So do you know how to operate an electric reciprocating saw? Next, ATO will bring you the use and maintenance methods of electric reciprocating saws, hoping to be helpful to you.

Soldering gun is one of the main equipment for hot air welding. Hand-held soldering gun has the characteristics of high efficiency, low heat input, low cost and environmental protection of welding. Nowadays, soldering guns are widely used in many industrial fields. Next, ATO will introduce to you the applications, advantages and principles of soldering guns.

Soldering iron is the most commonly used welding tool for electronic engineers and electronics enthusiasts. Using a soldering iron well will save us a lot of time in our work. At the same time, correct maintenance methods will help extend the service life of the soldering iron. Next, we will introduce you to the maintenance method of the electric soldering iron.

The foot switch belongs to a type of switch, mainly through the action of the foot to operate whether the circuit is on or not, and can also control the magnitude of the current. In many areas, if it is inconvenient to use the hand, a foot switch will be set to operate the machine, saving time and effort, so the foot switch is used frequently in daily life, mainly used in medical equipment, stamping equipment and other work fields. So, do you know how to wire the foot switch? Let's learn about the wiring of the foot switch now.

The electric reciprocating saw is a kind of electric saw, which is very intelligent and can adjust different speeds for different materials. There are many types of electric reciprocating saws on the market, and their basic working principle is essentially the same. Next, ATO will introduce to you the working principle of the electric reciprocating saw.

The soldering gun is one of the main equipment for hot air welding. Knowing how to use the soldering gun and precautions will help us master the operation process of the soldering gun more proficiently. Next, ATO will bring you knowledge about how to use welding guns and precautions.

Any CO2 sensor needs to be calibrated before use to improve accuracy. So how much do you know about the calibration method of the carbon dioxide sensor? Next, let's learn the calibration knowledge of carbon dioxide sensor together.

Soldering iron is the most commonly used welding tool for electronic engineers. Using a soldering iron well will save us a lot of time in our work. For friends who are not familiar with electric soldering irons, it is still very difficult to use. Today, ATO will explain to you about the use of electric soldering iron and welding skills, so that more people are familiar with electric soldering iron, let's learn it together.

Soldering gun is a commonly used welding tool, which can be used to weld various metal materials, such as iron, copper, aluminum and so on. Welding with a soldering gun requires attention to some usage methods and skills. The following will introduce the usage and precautions of the soldering gun in detail.

Distance meters are commonly used in construction and other fields. It has high accuracy and is a relatively easy-to-use distance measuring device. It is very important to calibrate the distance meter before use, because correct calibration helps to improve the measurement accuracy of the distance meter and reduce errors. How to calibrate the distance meter? Let us understand its calibration method and maintenance items together.

DC gear motor is a machine based on ordinary DC motor plus a gear reducer. Because of its small size and good performance, it is widely used in many industries. So do you know how a DC gear motor works? Next, we will provide you with knowledge about the working principle and troubleshooting of DC geared motors.

Whether in life or in industrial life, the use of motors is inseparable. In order to meet the needs of different industries, more and more types have gradually appeared on the market. But many users do not know how to choose when purchasing. In fact, to choose the right product, we must first compare different products. Let's take a look at the difference between a DC geared motor and a stepper motor.

The vane air motor is a power device with compressed air as the working medium. It uses the expansion effect of compressed gas to convert pressure energy into mechanical energy, and is widely used in industrial production. In order to let you know more about the vane air motor, we will bring you knowledge about the definition, structure and principle of the vane air motor.

In order to ensure the accuracy of the detection value, we will calibrate the pH meter before using it. There are generally three calibration methods, let us understand the calibration method of the pH meter together.

Gate valve and globe valve are commonly used valves, but they are also two different valves. When purchasing, we need to distinguish the different characteristics of gate valves and globe valves to ensure later use. Gate valves and globe valves are widely used in our lives, so what is the difference between gate valves and globe valves?

Gate valves have become one of the most widely used valves. From urban tap water, sewage treatment projects to oil and gas pipelines, gate valves can be seen. There are many classifications of gate valves, and different classifications are applicable to different pipeline environments. Therefore, before using gate valves, it is necessary to understand the classification of gate valves. Next, I will briefly introduce to you the types of gate valves.