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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...

A current transformer is an instrument that converts a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer is composed of a closed core and windings. Its primary winding has a few turns and is stringed in the line of the current that needs to be measured. According to different uses, current transformers can be roughly divided into two categories: current transformers for measurement and current transformers for protection.

According to the relevant data and practice, the repeatability of the tool setting probe is 1 um, and that of the chuck less than 15 inches is 5 um. The repeated accuracy of the tool arm can reach 8um for the chuck of 18 inches and above. This precision can meet the needs of most users without trial cutting. The use of tool setting instrument reduces the auxiliary time of the machine tool and reduces the rework and scrap rate. The efficiency and accuracy of the machine tool can be significantly improved when the machine tool is used from the beginning to the end.

Digital oscilloscope is an indispensable tool for the design, manufacture and maintenance of electronic equipment. With the rapid development of technology and market demand, engineers need the best tools to quickly and accurately solve the measurement challenges. As the eyes of engineers, digital oscilloscope is very important to meet the current difficult measurement challenges. Because of the unique advantages of waveform trigger, storage, display, measurement, waveform data analysis and processing, digital oscilloscope is widely used. Due to the large performance difference between digital oscilloscope and analog oscilloscope, if used improperly, it will produce large measurement error, thus affecting the test task.

A current transformer is an instrument that converts a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer is composed of a closed core and windings. Its primary winding has a few turns and is stringed in the line of the current that needs to be measured. This article will introduce the principles and precautions that should be paid attention to in the actual application of current transformers.

A current transformer is an instrument that converts a large current into a small current according to a certain transformation ratio. Current transformers are generally used to measure large currents. In modern technology, it is difficult to produce an AC instrument that can directly measure large currents, and even if they are manufactured, they will be brought to us when we use them. It's very dangerous. For this reason, clever technical engineers have manufactured current transformers based on the principles of transformers. In practical applications, current transformers also play many important roles. The following article will talk about the role of current transformers.

Introduction of limit switch
Limit switch is a kind of sensor to detect and control the mechanical movement beyond the limit displacement. For example, the position limiter of electric rolling shutter gate ensures that the motor will stop working when the gate is opened or closed to the specified position, so as to ensure that the motor and mechanical components will not be damaged due to excessive work. The commonly used limit switches include all kinds of travel switches, micro switches, and photoelectric switches. In short, as long as the corresponding detection device is equipped and the functional requirements are completed, they can be used as limit switches.

The blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base, 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. The pressure difference of the blower is used to automatically send 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 blower is also called a sliding vane blower. This article will talk about the use of blowers.In order to ensure personal safety, the operator must be familiar with this regulation before starting, and operate the blower strictly in accordance with this regulation.

Displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. According to the different forms of the measured variable, the displacement sensor can be divided into two types: the analog type and the digital type. The former can also be divided into two types: the physical type and the structure type. Commonly used displacement sensors are mostly analog structures, including potentiometer type displacement sensors, inductive displacement sensors, self-aligning machine, capacitive displacement sensors, eddy current displacement sensors, and Hall-type displacement sensors.

Conductivity meter is an instrument and equipment suitable for precise measurement of various liquid media, mainly used to accurately measure the conductivity of liquid media. When equipped with electrodes with corresponding constants, the conductivity of high-purity water can be accurately measured. At present, it is widely used in scientific research and production in various fields. This article aims to tell you how to use the conductivity meter.

The hot knife cutter's blade is a metal strip that melts the woven sleeve when heated to a high enough temperature. This not only reduces the length required when the woven sleeve is melted, but also fuses the cut to prevent loss due to loose yarn during installation and use.

Aerator pump is usually also called air-liquid mixing pump, ozone-water mixing pump, air-float pump, air-water mixing pump, mixed air pump, aerator pump, air-liquid pump, vortex pump, which is suitable for various industrial waste water treatment such as food, pharmaceutical, paper, chemical, biological engineering, beer, etc.

As a reactive power compensation device, the capacitor is an important equipment for the safe operation of the power grid. It plays an important role in adjusting the voltage of the power grid, reducing line losses, and improving the quality of power supply. But in actual application, due to the influence of human factors and various aspects of the environment. The capacitor frequently fails during operation, which affects normal operation. The following is an analysis of related failures about capacitance.

The sander is mainly for some surface unevenness and smoothness, usually used in the field of decoration, jade, handicrafts, hardware, electronics, stone, wood, etc., the main uneven surface grinding flat can be.

Soft start technology is an emerging technology for controlling and starting motors. Nowadays, it has received extensive attention from modern people and is actively used in enterprise production activities. This technology can smoothly start the motor, reduce the voltage well, and can also compensate and frequency the motor, thereby effectively reducing the adverse impact of the motor starting on the power grid and related equipment, thereby effectively protecting various related equipment. Soft start technology has incomparable advantages compared with traditional start technology.

Magnetic stirrers are usually used in food, biopharmaceutical and other fields. As biopharmaceuticals put forward higher requirements for the sterility and risk control of the agitator shaft seal, industrial magnetic agitators came into being in Sweden in the 1980s. Magnetic stirrers have become the mainstream of the market, and continue to develop in the direction of simplicity, high torque, high shear force or very low shear force, safe bearing materials, easy online cleaning, and online sterilization. For example, a magnetic stirrer for bioreactors, a magnetic stirrer for high-shear homogenization, etc. Whether it can prove that the agitator can be cleaned and sterilized online, and the bearing material safety has become the gold standard before the selection of biopharmaceutical agitators. 

Dehumidifiers are becoming more and more accepted by people. Dehumidifiers can be seen in hotels, production workshops, storage warehouses and even daily life. For example, ATO's Commercial dehumidifiers and Industrial dehumidifiers have the characteristics of low noise, energy saving and high efficiency, which are very suitable for commercial or industrial environments. As an electrical appliance, it is inevitable that there will be malfunctions. The following is an analysis of the related failures of the dehumidifier.

In the daily use of handheld inkjet printer are encountered in the process of some problems. Generally speaking, the working principle of online inkjet printers is more complex, and when a failure occurs, you usually need to contact the inkjet printer manufacturer's staff to guide the maintenance. While the working principle of handheld inkjet printers is relatively simple, as long as know the common processing methods, the fault can be easily resolved, and ATO's editor will explain it to you below.