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The sound level meter measurement is to convert the vibration wave signal of the metal diaphragm of the microphone (microphone head) at the front of the sound level meter into an electrical signal through the vibration wave caused by the sound signal (sound wave), and then pass through the special weighting network and circuit. After the operational amplification, the noise decibel value is displayed by digital or meter.

Static eliminator refers to the production and life used to eliminate static equipment. The static eliminator should be installed in the place where the electrostatic potential of the charged body is highest. The electrostatic tester can be used to measure the whole production line and find out the position of the highest electrostatic.

Multi-cell dry batteries are the most used in sound level meters, but batteries have their service life. Sometimes when the battery voltage is insufficient, the measured data will be inaccurate. This requires timely replacement of batteries when they are used to a certain extent. Usually, the sound level meter will set the indicator to check the battery status. Just press the battery check button, and the voltage of the battery can be displayed at a glance.

With the development of electronic technology, especially large-scale integrated circuit and computer technology, frequency weighting, detector and filter circuit in sound level meter are all realized by digital signal processing technology instead of analog circuit. This not only makes the circuit simpler and wider dynamic range, but also greatly improves the function and stability, especially for real-time spectrum analysis. A sound level meter is an instrument that measures the sound pressure level and sound level according to a certain frequency weighting and time weighting. It is the most commonly used instrument in acoustic measurement, which can approximate the noise level of industrial noise, traffic noise, environmental noise and living noise according to the characteristics of human hearing. It can be applied to the measurement of environmental noise, mechanical and electrical product noise, traffic noise, architectural acoustics and electro-acoustics.

An air motor (pneumatic motor), or compressed air engine, is a type of motor which does mechanical work by expanding compressed air. Pneumatic motors generally convert the compressed air energy to mechanical work through either linear or rotary motion. With proper using and maintenance, you can be sure that your air motor will maintain a high level of performance for many years. And it is easy to maintain an air motor. Basically, there are two key elements to pay attention to: lubrication and filtration.

The air source used must be effectively filtered. Sometimes a secondary filter is required. Filters should be cleaned in time. Otherwise: water, oil and dust/ dust particles can enter the ion generation chamber and adhere to the inner wall of the plastic component. At a certain point, the ionic needle ignites it. Results cellular coke loss was gradually formed in plastic parts, and ion discharge decreased gradually. In particular, it creates security risks.

An air motor is a device that converts the pressure energy of compressed air into rotational mechanical energy. Typically used as a source of rotational power for more complex devices or machines. Air motors are classified by structure into: vane air motors, piston air motors, compact vane air motors, and compact piston air motors. The air motor is a relatively precise power machine. It is strictly forbidden to knock or disassemble it during installation. It does not bear axial force, please install and use the air motor under the correct requirements.

As the key elastic element of the diaphragm coupling, the diaphragm bears the main load during operation. When the diaphragm shaft coupling rotates, its angular offset will generate alternating stress, which alternates once per rotation. The dynamic stress of the diaphragm will lead to the fatigue damage of the diaphragm and the bolt, so the accurate calculation of the dynamic and static composite stress is the key to predict the life of the diaphragm shaft coupling and the operation of the diaphragm shaft coupling.

Static eliminators are products that protect susceptible items from the effects of static discharge. There are rules that must be followed in static elimination. A thorough understanding of these principles is necessary to obtain the best performing equipment. The following will clarify some issues to consider when choosing static elimination.

Compared with piston motors of similar power, vane air motors are smaller, lighter and less expensive. Simple design and construction allow them to operate at any installation angle in most cases. The vane motor has a wider range of speed, torque and power and is the most commonly used form of air motor.

Shaft couplings are mechanical parts used to connect two shafts (driving shaft and driven shaft) in different mechanisms to rotate together to transmit torque. In high-speed and heavy-duty power transmission, some couplings also have the functions of buffering, damping and improving the dynamic performance of the shafting. The coupling consists of two halves, which are respectively connected with the driving shaft and the driven shaft. Most of the general power machines are connected with the working machine by means of couplings.

The flexible diaphragm coupling is composed of several groups of diaphragms (stainless steel thin plates) connected with the two halves of the coupling by bolts alternately. Each group of diaphragms is formed by stacking several pieces. The relative displacement of the two shafts is a high-performance metal elastic element flexible coupling.

Today we are going to carry out vibration motor performance test. This is 220V input. (Force is 30kg) vibration motor. The rated current and power are 0.1A and 30W respectively. We are able to open one side of cover. Now we can see, adjustable eccentric block is connected end of rotor shaft. Both two sides of the nut are same construct. The eccentric block is used to obtain the exciting force. The combination of the specific designed motor and the eccentric block enable the motor to rotate.

Data acquisition is an interface that uses a device to collect data from outside the system and input it into the system. Data acquisition technology is widely used in various fields. For example, cameras and microphones are all data collection tools. The collected data are various physical quantities that have been converted into electrical signals, such as temperature, water level, wind speed, pressure, etc., which can be analog or digital. The data acquisition is generally a sampling method, that is, the data of the same point is repeatedly collected at a certain time interval (called a sampling period). 

A terminal block (also called as connection terminal or terminal connector) is a modular block with an insulated frame that secures two or more wires together. It consists of a clamping component and a conducting strip. Many people are relatively unfamiliar with the terminal, because although we can use and see it in normal times, we don't know what it is and what it does. 

Induction motor refers to a motor that relies on electromagnetic induction between the stator and the rotor to induce current in the rotor to realize electromechanical energy conversion. Three-phase asynchronous motors generally have two wiring structures, WYE (Y) and Delta (△). When the Y-type access voltage is 380V, we can change it to △ type 220V.

The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to be rotated 90 degrees and a small torque can be closed tightly. Ball valves are widely used in petroleum refining, long -distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electric power, municipal, steel and other industries. ATO offers one piece, two pieces, three pieces of stainless steel ball valves, sizes are available in 1", 1/4", 2' and 3"

ATO UPS is the abbreviation of the uninterrupted English name, which appeared with the birth of the computer and is one of the commonly used peripheral devices of the computer. Actually. UPS is a kind of uninterruptible power supply with constant voltage and constant capacity with an energy storage device and inverter as the main component. Now that UPS is becoming more and more popular, let's take a look at the main protection functions of uninterruptible power supplies?

Centrifuge machines are widely used in various laboratories such as hospital laboratories, scientific research institutions laboratories, food and drug testing laboratories, and food hygiene laboratories. Centrifuge selection should pay attention to the following aspects.

Terminal block is an accessory product used to realize electrical connection, which is divided into the category of connector in industry. With the increasing degree of industrial automation and the stricter and more precise requirements of industrial control, the amount of terminal blocks is gradually increasing. The following small series will introduce to you how to connect the wiring terminals.