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    Tag: difference between

    AC vs. DC Cooling Fan

    With the growing market demand for fans, it has also been applied in various occasions and industries, although now DC fans and AC fans are everywhere in life, but many people are not very clear about these fans will be, so the following to introduce the difference between the two cooling fans. This article explains the differences between DC and AC cooling fans from five aspects.

    Optical Endoscope vs. Electronic Endoscope

    Endoscope, also known as borescope or endoscope camera, is a multidisciplinary universal tool. Its function is to explore the depths of curved pipes, observe the parts that cannot be directly seen, observe the internal space structure and state in a sealed cavity, and realize long distance observation and operation. Endoscopes are mainly divided into optical endoscope and electronic endoscope.

    The Difference Between Flexible Coupling and Rigid Coupling

    Rigid couplings are divided into flange couplings, radial key flange couplings, sleeve couplings, jacket couplings and parallel shaft couplings Flange couplings: use bolts to connect the two halves The flange of the shaft coupling realizes the coupling of the two shafts. Radial key flange coupling: the coupling of the two halves of the coupling is connected by radial keys and ordinary bolts. Sleeve Coupling: using a common sleeve Couplings that connect two shafts in a certain way Couplings: Couplings that are clamped in some way to achieve two-shaft coupling using two axially split collets. Parallel shaft couplings: use Coupling in which the intermediate disc passes through the pin to realize the connection of two parallel shafts.

    Pure Sine Wave Inverter vs. Ordinary Inverter

    Pure sine wave inverters have strict requirements for function and parameters. It is more expensive and can be used in electronic circuits that require higher waveform parameters. The ordinary inverter is a hybrid waveform of a sine wave, square wave, clutter and other components, which can be used for general electrical appliances, and the price is low.

    Gas vs. Diesel Generators

    No matter where you are, you can be affected by a power outage, especially in winter. Likewise, there are many industries that must have a reliable backup method to safely generate electricity when needed. For backup power systems, there are many types of generators that can be used to generate electricity in times of emergency. For now, there are two main types of generators, namely diesel generators and gas generators. However, what is the specific functions of these generators? Let’s learn about some differences between diesel and gas generators so that we can choose the most suitable backup power system.

    Single Diaphragm Coupling vs. Double Diaphragm Coupling

    The diaphragm coupling consists of at least one diaphragm and two shaft sleeves. The difference between the single-diaphragm coupling and the double-diaphragm coupling is the ability to handle various deviations, which requires the diaphragm to bend, so the single-diaphragm coupling is not suitable for eccentricity. The double-diaphragm coupling can be bent in different directions at the same time to compensate for eccentricity.

    Active vs. Passive Static Eliminator

    Static electricity is an electric charge at rest. In the dry and windy days, people often come across this phenomenon in their daily life. Static eliminator plays a very important role in this situation. In the following, we will introduce the differences between active static eliminator and passive static eliminator.

    Shunt Capacitor vs. Serial Capacitor

    We often hear shunt capacitors and series capacitors in circuit devices. So what is the difference between them? Today, we will introduce the differences between series capacitors and shunt capacitors.

    A series capacitor is a reactive power compensation device. Usually series capacitors are used in EHV lines of 330kV and above. Its main function is to improve the system voltage from the perspective of compensating reactance, so as to reduce the power loss and improve the stability of the system. Capacitors must be able to withstand external forces due to short circuits, wind, snow and earthquakes. These mechanical forces are calculated through precise component analysis.

    One Piece Ball Valve vs. Two Piece Ball Valve

    One piece ball valve is a relatively new type of ball valve. It has some advantages unique to its own structure, such as no friction on the switch, not easy to wear the seal, and small opening and closing torque. This reduces the size of the fitted actuator. Equipped with a multi-turn electric actuator, the medium can be adjusted and tightly shut off. It is widely used in petrochemical urban water supply and drainage and other working conditions that require strict cut-off.

    Compare 3 Starting Methods for 3-phase Asynchronous Motor

    An induction motor is similar to a poly-phase transformer whose secondary is short circuited. Thus, at normal supply voltage, like in transformers, the initial current taken by the primary is very large for a short while. Unlike in DC motors, large current at starting is due to the absence of back emf. If an induction motor is directly switched on from the supply, it takes 5 to 7 times its full load current and develops a torque which is only 1.5 to 2.5 times the full load torque. This large starting current produces a large voltage drop in the line, which may affect the operation of other devices connected to the same line. Hence, it is not advisable to start induction motors of higher ratings (generally above 25kW) directly from the mains supply.

    Horizontal Centrifugal Pump vs. Vertical Centrifugal Pump

    We all know vertical centrifugal pumps and horizontal centrifugal pumps, both of which are centrifugal pumps. It can be used in everyone's daily life. So what is the difference between these two pumps? And what are the differences? For this issue, will give you a brief explanation so that you can have a more detailed understanding of these two pumps.

    Difference Between a Soldering Iron and a Soldering Station

    Soldering stations and soldering irons are common tools in soldering operations. In fact, the soldering station is also a kind of electric soldering iron. Many people call the soldering station an electric soldering iron. The soldering station is just a new welding tool that appears in the electronic welding process due to the development requirements of welding technology. Now the soldering station has developed a lot.

    Difference Between Proximity Switch NPN and PNP

    A proximity switch is a position switch that can be operated without direct mechanical contact with moving parts. When the object is approaching and the sensing surface of the switch is at the action distance, the switch can be actuated without mechanical contact and any pressure to drive the DC electrical appliance or provide control instructions to the computer (plc) device. ATO proximity switch is a non-contact switch. It not only has the characteristics of a limit switch and microswitch but also has sensing performance.

    Difference Between Voltage Stabilizer and Voltage Regulator

    Both voltage stabilizer and voltage regulator are power protection devices. The voltage regulator can adjust the required voltage according to the actual situation of the user. The voltage stabilizer can only stabilize the fluctuating and unstable voltage at the preset voltage value in the factory. Although both the voltage stabilizer and the voltage regulator change the voltage, but their functions are different. You could choose according to the actual situation.

    Relay Holding Circuit vs. PLC Holding Program

    The automatic holding circuit is often used in various electrical cabinets and is a simple logic circuit. Of course, this simple logic circuit can be built in a large number of PLCs, it is the basis of PLC logic instructions.

    Solar Radiation Sensor vs. PAR Sensor

    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. 

    Air Diaphragm Pump vs. Electric Diaphragm Pump

    Diaphragm pump is divided into air powered diaphragm pump and electric operated diaphragm pump. Pneumatic diaphragm pump is a new type of conveying product that uses compressed air as the power source. It can absorb all kinds of corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids. Material is available in aluminum alloy, stainless steel, non-metallic and cast iron. Electric diaphragm pump is also a new type of pump, which is used in petrochemical, ceramics, metallurgy and other industries.

    Stepper Motor Driver vs. Servo Motor Driver

    A stepper motor is an actuator that converts electrical pulses into angular displacement. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in the set direction, and its rotation runs step by step at a fixed angle. The angular displacement can be controlled by controlling the number of issued pulses, so as to achieve the purpose of controlling the displacement. At the same time, the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation. The rotor inside the servo motor is a permanent magnet.

    Differences between MCCB and MCB Circuit Breaker

    A circuit breaker is essentially a safety device for any property that uses electricity. These fixtures act as third parties in complex and dangerous electrical wiring systems. MCB and MCCB are circuit breakers. They are used in homes to prevent personal injury and electrical damage. These devices are designed to perform specific functions. It is their special features that make them special. So, what are the differences between them?

    Difference between PNP and NPN Proximity Sensor

    Proximity sensors are known as non-contact travel switches which are generally widely used in material sorting control systems and automatic detection. Proximity sensors are divided into inductive proximity sensor, capacitive proximity sensor, magnetic proximity sensor, analog proximity sensor and Hall proximity sensor, which can detect whether there is an object approaching within a range of several millimeters to tens of millimeters. When the distance between the object and the proximity switch reaches a certain range, this proximity sensor can send out the corresponding action signal.