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The current sensor is a detection device that can sense the information of the measured current and convert the sensed information into an electrical signal that meets a certain standard or other required form of information output to meet the transmission of information, processing, storage, display, recording and control requirements. As the main components in the control and transmission system, the Hall current sensor plays an important role in the overall stability of the equipment. Hall current sensors are widely used in various industries such as frequency control, battery detection, power supply, servo, welding machine power supply, photovoltaic inverter, wind power inverter, electroplating, locomotive and so on.

The manufacturing process of the current sensor is very complicated and has many operation steps. Now ATO shows you how to make current sensor, so that you can have a better understanding of the current sensor.

Turbidity is one of the most important parameters when using water quality tester to measure the water quality of the natural environment. However, many people do not fully understand the details of turbidity measurement. Here is how does water quality tester measure turbidity.

The water quality in the natural environment is easily affected by some suspended particulate matter, and these suspended particulate matter can be measured by a water quality tester to get a specific value, that is, turbidity. In general, turbidity is closely related to climate or surface water conditions, so if you want to know whether the environmental conditions of lakes and rivers have changed, you can judge by measuring the turbidity of the water.

When a fault occurs during the use of the laser marking machine, the problem should be solved in time, otherwise it will directly affect the workshop output. Actually, the maintenance of the laser marking machine is a little troublesome, but the working principle is very simple, so many problems can be solved by the operator without professional technicians. Here are several common problems and causes of laser marking machine.

Rotary viscometer is widely used to measure the dynamic viscosity of various fluids such as grease, paint, coating, plastic, food, medicine, adhesive and so on. It is popular because of the simple structure, cheap price, convenience and practicality. But in the process of communicating with customers, it was found that many of them have some doubts about how to use the rotational viscometer correctly. Now ATO will tell you the correct use of rotational viscometer, so that you can use ATO’s rotational viscometer more efficiently and conveniently.

Viscometer is an instrument used to measure the viscosity of a fluid ( liquid or gas ). Viscosity is the physical quantity of internal friction occurring in the fluid when the fluid is flowing. It is the ability of the fluid to resist deformation and an important index used to identify some finished or semi-finished products. Viscosity varies with the type and temperature of the fluid. And what are the different types of viscometer? The following are seven common types which are widely used in petrochemical, pharmaceutical, food, light industry, textiles and other fields.

The installed rotor of a rotary vane vacuum pump is tangent to the stator fixed surface inside the pump eccentric, two or more rotary vanes slide in the rotor slot and contact with the inner wall of the stator, which makes the pump chamber divided into several variable volumes.

Generally, the clearance between the rotary vane and pump chamber is sealed by oil, so the rotary vane vacuum pump is usually an oil seal mechanical vacuum pump.

The rotary vane vacuum pump can remove the dry gas from the sealed container. It can remove a certain amount of condensable gas if it has gas ballast device. However, it is not appropriate to remove some gases that are highly oxygenated, corrosive to metals, react chemically to pump oil, and contain particulate dust.

The rotary vane vacuum pump failure is divided into operation failure and performance failure.

An automatic screw feeder is an automatic device that replaces human hands to take, put and tighten the screws by automatic mechanism, which mainly applies for automatic assembly, such as producing car components, computers, display screens, motors, lamps and lanterns, mobile phones, printers, circuit boards and batteries. It can extremely improve production efficiency and reliability as well as reduce production costs. 

Automatic screw feeders are divided into the handheld automatic screw feeder and the fully automatic screw feeder. 

The air compressor is a compressed gas equipment that is applied for every process of industrial production. As an important industrial equipment, the air compressor provides pneumatic power sources, which is a core device of the pneumatic system. It changes mechanical energy of dynamic into gas pressure energy, which is an air pressure generating device of compressed air. However, if some problems occur in the air compressor, how should we discover and resolute?

The pressure washer is a machine that washes the surface of objects by a power unit to generate high-pressure water from high-pressure piston pump. It can remove and wash away the dirt to reach the purpose of clean the surface of objects. Using high-pressure water column to clean the dirt, high-pressure washes is a clean way that is the most scientific, economic and environmental in the world. However, how to choose a pressure washer?

The industrial endoscope plays an important role in the industrial inspection. As the development of technology, the industrial endoscope is used widely because the manufacturer pursues quality inspection and intact testing. There are various industrial endoscopes, and different kinds of endoscopes are used on different fields, such as petrochemical industry, aviation, and industrial machinery, etc. However, how to select an industrial endoscope?

Different kinds of industrial endoscopes have different range of application. Usually an industrial endoscope should be selected according to the position of inspected objects. The selection of the industrial endoscope is based on following factors.

The water chiller is a water cooling equipment, which can provide constant temperature, constant current and constant pressure. The principle of the water chiller is that a certain amount of water is injected into internal water tank, making refrigerating system cools the water, and then water pump inside the machine injects cryogenic freezing water into an equipment which needs to cool back. The frozen water takes away calories inside the machine, then high temperature water backflow in water tank cools down. Cycle alternation cool reaches a function that cools equipment.

The "input" and "output" terminals of a isolation transformer should be short-circuited to test their insulation resistance against the ground wire by a megohmmeter. When measuring by 1000V megohmmeter, the resistance value is greater than 2M ohms. The cross-sectional area of the isolation transformer input and output power lines should meet the requirements of its current value. It is appropriate to configure the electric current density of 2 ~ 2.5a /mm2.

As an important form of energy generation, air compressors are widely used in various industrial fields, including mechanical, metallurgy, Electronic power, medicine, packaging, chemicals, food, textile, transportation and so on.
Direct drive of air compressor refers to the motor main shaft to drive the rotor by the coupling and the gearbox speed, which is not actually a direct drive in practical sense.
Direct drive in the true sense means that the motor is directly connected with the rotor (Coaxial), which has the same speed. This situation is obviously very rare. Therefore, it is a wrong view that there is no energy loss in direct drive.
Another drive way is belt driven, which allows the rotating speed of the rotor to be changed by pulleys of different diameters.

The principle of three-phase isolation transformer basically adopts the principle of electromagnetic induction. It is safe to use a three-phase isolation transformer, which is generally used as a maintenance power supply. The isolation transformer is commonly 1:1 transformer, but it has different specifications. Three-phase isolation transformers are used for changing voltage, lighting, power supply and rectifying power supply, widely applied to industrial and mining enterprises, power plants, airports, high-rise buildings, subways and other places with high fire safety requirements.

As a relatively safe transformer in the power industry, isolation transformer has been widely used in electronic industry or industrial and mining enterprises, machine tools and mechanical equipment in general circuit control power supply, safety lighting and indicator power. Due to its excellent product performance, isolation transformer has been used in more fields and scope, and may gradually replace the ordinary transformer. What's the difference? The following is a simple analysis of the main differences between the isolation transformer and the ordinary transformer.

The isolation transformer is a device adopting the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the core (magnetic core). The main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and so on. Due to its excellent product performance, isolation transformer has been used in more fields and scope. As we all know, power transformation relies mainly on the step-up & step-down transformer.

Isolation transformer is the transformer with electrical isolation between the input winding and the output winding. Isolation transformer is used to avoid users accidentally touching the charged body at the same time. Isolation transformer, whose transformer ratio is usually 1:1, is a special transformer with high insulation strength between the primary winding and secondary winding to isolate different potential to suppress common mode interference. The main function of the step-up & step-down isolation transformer is to completely insulate the primary side and the secondary side, and also to isolate the loop. In addition, the high frequency loss of the iron core is used to suppress the high frequency clutter into the control loop. 

Although three-phase isolation transformers and single-phase isolation transformers are different types of step-up & step-down isolation transformer products, they all have very similar functions and can be used for converting voltage and current, safe isolation and voltage regulation, and play a very important role in many professional fields. However, there are significant differences between them.

ATO provides customized 100W to 15kW high torque brushless DC motors with reasonable price. They come with different square flange size, rated speed from 1000rpm to 3000rpm, work at 12 volt, 24 volt, 48 volt, 96 volt voltage. Matched BLDC controller is available here which has powerful functions to meet your needs. The price of our high torque BLDC motors is listed as table below, check and buy one you desired right now, motor parameters are customizable according to your requirements.

LCR meter is also called LCR bridge or LCR tester. It is a precision digital instrument for measuring Inductance (L), Capacitance (C), and Resistance (R) and other secondary specifications of electronic components. The secondary parameters include |Z|, |A|, X, B, G, D, Q, θd, θr, RDC, Vm, Im, △%, etc. The selection basis of LCR meter mainly includes test frequency range, inductance range, capacitance range, resistance range, accuracy.