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Permanent magnet synchronous motor is an AC motor that generates torque by the interaction of the excitation magnetic field supplied by a direct current and the rotating magnetic field of the armature, and rotates at a synchronous speed. It belongs to AC motors, and the stator windings are the same as synchronous motor. Because its rotor rotation speed is the same as the speed of the rotating magnetic field generated by the stator winding, it is called synchronous motor.

Transformer is a device that transform AC voltage, current and impedance. It uses the principle of electromagnetic induction to transform AC power of one voltage level into AC power of another voltage level. When an AC current is passed through the primary coil, an AC magnetic flux is generated in the iron core, causing a voltage (or current) to be induced in the secondary coil. It is composed of an iron core and a coil. The coil has two or more windings. The winding connected to the power supply is called the primary winding, and the remaining windings are called the secondary winding.

Transformer mainly uses the principle of electromagnetic induction to work. The specific process is when an AC voltage U1 is applied to the primary side of the transformer, and the current flowing through the primary winding is I1, the current will generate alternating magnetic flux in the iron core, which makes the primary winding and the secondary winding electromagnetically connections.

Vibration motor is on both ends of the rotor shaft installed a set of adjustable eccentric block, the centrifugal force generated by high speed rotation shaft and eccentric block vibration force. With the improvement of vibration motor performance, the application scope has been greatly expanded. Now it is used in metallurgical industry, water conservancy industry and coal industry.

Because of the increase in demand, the number of manufacturers producing and selling vibration motors has increased a lot. We don't know how to choose when you are faced with so many types of products. In order to choose a suitable vibration motor, ATO lists some specific indicators of vibration motor selection:

We live in a world of sensors. They are everywhere. You can find them in our homes, offices, hospitals, etc. They can make our lives more convenient and easy by detecting our presence to turn on lights, regulate room temperature, detect smoke or fire, and many other tasks. In this article, ATO will make a detailed introduction from four aspects: the definition of sensor, different types, application and how to choose a right sensor.

There are many definitions of sensors. Generally speaking, a sensor is a detection device, which can sense the measured information, and can transform the perceived information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, record and control.

Gear motor is an integrated device of speed reducer and electric motor, also known as gear reduction motor. Professional manufacturers integrate and assemble the gearbox and electric motor to be a set for sale. Gear motor is a unit for connection, transmission, speed reduction, and increasing torque. AC/DC gear motors have the advantages of low energy consumption, superior performance, small size, compact structure, reliable and durable, etc.

According to speed, a motor itself can be divided into low speed (low rpm) motor and high speed (high rpm) motor. According to functions, there are drive motors and control motors. No matter what kind of motor, there is a rated speed and torque. To obtain variable speed, a dedicated controller or speed regulator is needed to control the speed, but this will increase a certain cost and cause the motor price to become higher. On the other hand, performance of the motor after speed regulation will decrease to varying degrees. In this case, gear motor can perfectly solve this problem.

Industrial production is often accompanied by dust, metal particles, various scraps, and some invisible dust particles that cause air pollution and threaten the health of workers. As green production and environmental protection become mainstream, industrial cleaning equipment is playing an indispensable part in optimizing working environment. What equipment is needed? Industrial vacuum cleaners shall be a good choice. Industrial vacuum cleaners are commonly used to collect wastes, filter and purify air in order to create a comfortable and pleasant environment. And also, it can work as a supporting device in conjunction with other industrial manufacturing equipment for the purpose of removing dust and debris generated during production, guaranteeing the cleanness of working environment and the health of employees.

The principle of air booster pump is to produce high hydraulic pressure of small area piston by using low pressure of large area piston. The air booster pump is used in the working environment where the original air pressure system needs to increase the pressure. It can increase the air pressure of the working system to 2-5 times, only the compressed air in the working system can be used as the air source. The pump is suitable for single air source pressurization. ATO provides professional high-quality gas booster pumps as follows, which will describe their advantages and disadvantages.

During the operation of the air compressor, if the motor is always easy to be burned, and after the winding is burned, some phenomena or direct causes that caused the burn are covered, making post-mortem analysis and cause investigation more difficult, often making users confused and anxious.
ATO found a reasonable breakthrough after analysis: The operation of the electric air compressor motor is inseparable from the normal power input, reasonable motor load, good heat dissipation and the protection of the winding enameled wire insulation. Starting from these aspects, it is not difficult to find the reason for the burning of the electric air compressor motor.

Programmable Logic Controller referred to as PC or PLC is an electronic system operated by digital operations, specially designed for application in an industrial environment. It uses a memory that can be programmed to execute instructions for storing logical operations and sequence control, timing, counting and arithmetic operations, and through digital or analog input (I) and output (O) interfaces, controls various Type of mechanical equipment or production process. PLC is developed on the basis of electrical control technology and computer technology, and gradually developed into a new type of industrial control device with microprocessor as the core and integrating automation technology, computer technology and communication technology. PLC has been widely used in the automatic control of various production machinery and production processes. 

The advantages of indoor high voltage vacuum circuit breaker are not only oil-free equipment, but also long electrical life. It has mechanical life, large breaking insulation capacity, strong continuous breaking capacity, small volume, light weight, frequent operation, fire free, less operation and maintenance, etc. And they are quickly recognized by the operation, maintenance and technical personnel of the power department. The quality of some high voltage vacuum circuit breakers is not stable enough, the current carrying voltage is on the high side during operation and some vacuum interrupters still have air leakage. With the wide application of vacuum circuit breaker, faults also occur from time to time. The author analyzes the common faults of vacuum circuit breaker and gives treatment methods.

What factors should be taken into consideration when selecting a hydraulic motor? The first thing that should be focused on is the operating conditions of the hydraulic system, following which we should decide on the output torque, speed and power as needed so as to pick a right product model and specification.

Hydraulic motors are rotary actuators that convert hydraulic pressure supplied by the hydraulic pump into mechanical energy (such as torque and speed) applied to its output shaft. Hydraulic motors can be classified in different ways. Based on different rated revolving speed, there are high-speed and low-speed motors. And in terms of configuration, there are mainly four types of hydraulic motors among others, namely, gear motors, vane motors, radial plunger motors and axial plunger motors.

The thyristor power controller adopts thyristor (SCR or TRIAC) as the switching component, namely, a non-contact switch that can quickly and accurately control the closing time. It serves as an essential terminal equipment for power control designed for high precision and high dynamic indicators. It is worth noting that different loads and constraints of the operation environment determine different control modes and require various supporting equipment. Among control modes there are phase angle control, distributed crossover and time proportional zero crossover. In actual use, SCR power controllers can be sorted into single-phase SCR power controllers and three-phase SCR power controllers in accordance with their load types, power supply types and power supply voltage levels. So, how should we choose the right type of power controller and bring its optimum performance into play with minimal damage? The following passages will give you the answer.

A power regulator is a panel-mounted power adjustment unit that uses a thyristor (also called Silicon Controlled Rectifier or SCR) and its trigger control circuit to adjust the load power. Thanks for its small size, high efficiency and durable service life, it is widely used in AC and DC motor speed control system, power control system, follow-up system, temperature control and many other sectors. SCR power regulator works by means of an intelligent digital control circuit. Its precise control of voltage, current and power makes for precise temperature control. And its advanced digital control algorithm greatly improves energy efficiency, which highlights its important role in saving electric energy. Power regulators are becoming an indispensable equipment in the automation industry.

Planetary speed reducer is a kind of deceleration equipment with a wide range of uses. The precision of planetary reducer is very high. Under the premise of ensuring precise transmission, planetary reducer is mainly used to reduce speed, increase torque and reduce the load/motor moment of inertia ratio. Planetary reducer is also called servo reducer or servo planetary reducer. The gear reducer is an externally meshing involute helical cylindrical gear reducer produced according to the national professional standard ZBJ19004. This article compares the similarities and differences between two speed reducers in general, characteristics and application approaches.

Safety switch is a switch that prevents people from entering a dangerous area before all safety conditions are met. Also it is a device that monitors current in various applications. Safety switches can be used in major equipment applications (conveyor belts, production line equipment, heavy equipment) and electrical protection of whole system. The safety switch works by monitoring the current and detecting electrical faults, which means that in case of leakage, short circuit, overload, the safety switch will cut off the power supply of the faulty system almost immediately (within a few milliseconds).

The air blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (and oil tank), drip nozzle. The blower operates eccentrically on the rotor offset in the cylinder, and changes the volume between the blades in the rotor slot to suck in, compress, and discharge air. During operation, the pressure difference of the blower is used to automatically send the lubrication to the drip nozzle and drip into the cylinder to reduce friction and noise, while keeping the gas in the cylinder from returning. This type of air blower is also called a sliding vane blower. There are many types of air blowers, mainly divided into the following categories.

Bandwidth is one of the most important indexes of oscilloscope. The bandwidth of analog oscilloscope is a fixed value, while the bandwidth of digital oscilloscope has two kinds: analog bandwidth and digital real-time bandwidth. The maximum bandwidth that digital oscilloscope can achieve by using sequential sampling or random sampling technology for repeated signals is the digital real-time bandwidth of oscilloscope. The digital real-time bandwidth is related to the maximum digital frequency and waveform reconstruction technology factor K (digital real-time bandwidth = maximum digital rate / k), which is generally not directly given as an index. 

Vibration meter is an instrument used to measure the peak value, peak-to-peak value, average value or root mean square value of vibration such as velocity, acceleration and displacement. The vibration meter can be applied in mechanical manufacturing, electric metallurgy, general aviation etc. The main parts of this instrument are integral differential circuit, amplifying circuit, voltage detector and meter head. The integral differential circuit is used to complete the integral differential operation between the above vibration quantities. Generally, integral and differential operational amplifiers can be used, low-pass filters and high pass filters can also be used to complete integral differential operations. However, we should pay attention to this instrument's application frequency range when we are using it for calculation. The vibration meter can only obtain the total intensity (vibration level) of the vibration, but cannot obtain other information, so its scope of using is limited.

Soft starter is a novel motor control device which integrates soft start, soft stop, light load energy saving and multiple protection functions. Its main structure is a three-phase anti parallel thyristor and its electronic control circuit connected in series between the power supply and the control...