Blog

A current sensor is a detection device that can sense the information of the measured current, and can transform the sensed information into electrical signals that meet certain standards or other required forms of information output according to certain rules to meet the needs of Requirements for the transmission, processing, storage, display, recording and control of information.

Vacuum circuit breaker is an internal power distribution device in three-phase AC system with voltage of 3-10kV and frequency of 50Hz. In industrial and mining organizations, power plants and substations can be used to protect and control electrical equipment. The vcb circuit breaker can be configured in the middle cabinet, double-layer cabinet and fixed cabinet to manage and protect the high-voltage electrical equipment in the maintenance and frequent operation area.

A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirements, the relay makes a predetermined step change of the controlled quantity in the electrical output circuit. It has an interactive relationship between the control system (also known as the input loop) and the controlled system (also known as the output loop). Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. Relays are widely used in industry. Therefore, today we will introduce the structure, function and classification of relays. We hope that after reading this article, you can have a general idea of relays.

Brushless DC motor kit consists of a motor and a driver, and is a typical mechatronic product. Because the brushless DC motor operates in a self-controlled manner, it will not add a starting winding to the rotor like a synchronous motor with heavy-load starting under variable frequency speed regulation, nor will it cause oscillation and loss of step when the load changes suddenly. Today we're going to study how to connect a brushless motor to a driver and control speed.

A voltage stabilizer is a power supply circuit or power supply device that can automatically adjust the output voltage. Its function is to stabilize the power supply voltage that fluctuates greatly and does not meet the requirements of electrical equipment within its set value range, so that various circuit or electrical appliances can be stabilized. The equipment can work normally under the rated working voltage.

With new improvements in vacuum breaker design, vacuum circuit breakers are becoming more common at the lower voltage ranges of transmission networks. When choosing a vacuum circuit breaker, we need to consider many factors. But the most important thing is to know about vacuum circuit breakers before you can make a choice. The following brief introduction hopes to help you choose the right one.

An air compressor is a device that converts power into potential energy stored in compressed air. By one of several methods, an air compressor forces more and more air into a storage tank, increasing the pressure. Air compressors are widely used in industrial production to provide power for production. After the air is compressed, it can be used as power, machinery and pneumatic tools, as well as control instruments and automation devices. Ranging from the drive of various pneumatic machinery to the national defense, the power converted by the air compressor is used.

A gas detector is an instrument that detects gas concentration. The instrument is suitable for dangerous places with flammable or toxic gases, and can continuously detect the content of the measured gas in the air within the lower explosion limit for a long time. It can be widely used in gas, metallurgy, steel, coking, electric power and other industries where flammable or toxic gases exist. Gas detectors are ideal monitoring instruments to ensure property and personal safety. Therefore, today we are going to introduce gas detector to you. We hope that you can know why you need a general idea about gas detector after reading.

Thermocouple temperature sensors are characterized by wide range, low cost, fast response and durability. They are widely used for temperature measurement in industry. R-type thermocouples can measure high temperatures of more than 1700 degrees, and are mainly used in high temperature measurement occasions. In today's article, let's talk about how thermocouples work.

The temperature detection technology is relatively mature now, and the development changes are relatively small. The main change is that the temperature transmitter has developed rapidly and has entered into a new period of automation and intelligence. The protective performance of temperature detection instruments has been strengthened, such as anti-corrosion, explosion-proof, anti-corrosion, waterproof, etc. The selection of temperature detection methods is particularly important for its use and control in industrial sites. Appropriate measurement methods can get twofold result with half the effort. The following passage is brief description of temperature transmitter type.

Solar radiation is radiant energy emitted by the sun from a nuclear fusion reaction that creates electromagnetic energy. The spectrum of solar radiation is close to that of a black body with a temperature of about 5800 K. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other half is mostly in the near-infrared part, with some in the ultraviolet part of the spectrum.

Solar radiation sensor is designed on basis of silicon-cell principle. It is mainly used for measuring solar radiation within 300-1100nm wavelength. If the sensing face is downwards, it can test the reflected radiation and solar radiation on the incident to the inclined plane. PAR sensor is mainly used for measuring solar radiation within 400-700nm wavelength. It is easy installation and can work continuously in all weathers. When there is sunlight, voltage output proportional to incident light intensity will be generated by the silicon-photo detector in the sensor. 

A garage door opener is a motorized device that opens and closes a garage door controlled by switches on the garage wall. It is common equipment in homes and factories. This article will introduce specific measures when garage door opener fails.

In the steel production process, monitoring the temperature is essential to improve productivity and product quality. Whether the temperature of the production process is within the range required by the process; whether the temperature of the heating furnace is too low or too high; whether the rolling mill needs to be adjusted, or to what extent it needs to be cooled, infrared thermometers can solve these problems well. Infrared thermometers are mainly used in continuous casting, hot blast furnace, hot rolling, cold rolling, bar and wire rolling in the steel processing and manufacturing process.

As we all know, a gas detector is an instrument used to detect changes in the concentration of harmful gases at work sites. In some limited spaces with large areas and complex environments, the working environment can be said to be changing rapidly. Gas detectors can remind staff to take preventive measures in a timely manner, and can also let companions know each other's location and distance. Today we will introduce the installation, maintenance and precautions of the gas detector.

Radiation sensor works by measuring the number of small units of light, known as photons that impact a physical or chemical device located within the instrument. Solar radiation sensors are typically not powered due to the fact that the components located in the device either are influenced by or react to solar radiation in a direct manner.

Proximity sensor is a general term for sensors that replace the contact detection methods such as limit switches and aim to detect without touching the detection object. The movement information and presence information of objects can be detected and converted into electrical signals.

As proximity sensor is so important, today we are going to introduce two types of proximity sensor. We hope that you can know the specialties of two types of proximity sensor.

The hardness tester is a special instrument used to measure the surface hardness of coatings. There are two types of hardness testers: desktop hardness tester and portable hardness tester. Desktop hardness tester is mainly used in laboratory and has the advantage of high precision. Portable hardness tester is used for installed mechanical or permanent assembly parts and is easy to carry. The portable hardness tester integrates portable hardness testers such as Brinell, Rockwell, etc., and can realize the free conversion of 7 different hardness values.

Today, we are going to introduce gear pump to you. Gear pump is applied in industrial widely, if you have a general idea about gear pump, it will help you a lot in you work.

The gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gear to transport liquid or pressurize it. Two closed spaces are composed of two gears, pump body and front and rear covers. When the gear rotates, the volume of the space on the disengagement side of the gear increases from small to large, forming a vacuum. After the liquid is sucked in, the volume of the space on the meshing side of the gear changes from large to small, and the liquid is squeezed into the pipeline. The suction cavity and the discharge cavity are separated by the meshing line of the two gears. The pressure at the outlet of the gear pump depends entirely on the resistance at the pump outlet.

A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. Transformers are used to change AC voltage levels, such transformers being termed step-up (or step-down) type to increase (or decrease) voltage level. Step-up transformer is widely used in high-frequency fields, such as inverter power supplies. In this article, we will briefly introduce some maintenance precautions of step-up transformer.