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introduction：Delta inverter advantages：Energy conservation Inverter energy saving is mainly manifested in the fan、The application of the pump。In order to ensure the reliability of production，All kinds of production machinery in the design with power drive，There is a certain amount of surplus。When the motor cannot run at full load，In addition to meeting the power drive requirements，The excess torque increases the consumption of active power，Resulting in a waste of electrical energy。Air blower、The traditional speed regulation method for pumps and other equipment is to adjust the inlet or outlet baffle、Valve opening to adjust the amount of air and water，Its input power is large，And a lot of energy is consumed in the baffle、Valve closure process。When using frequency conversion speed regulation，If traffic requirements are reduced，The requirements can be met by reducing the speed of the pump or fan。
2018-11-27 Reading quantity 1021
introduction：Ac motor speed regulation method： one、Variable pole logarithm speed regulation method：The stator pole number of cage motor can be changed by changing the red connection mode of stator windings to achieve speed regulation。 two、Variable frequency speed regulation method：Use frequency converter to change the frequency of motor stator power supply，Thus changing the speed regulation method of synchronous speed。
2018-11-26 Reading quantity 238
introduction：Optical fiber sensing technology is a new technology formed with the rapid development of optical communication。In optical communication systems，Optical fiber is the medium through which light wave signals are transmitted over long distances。When light waves travel through optical fibers，Characterizes the phase of light waves、frequency、amplitude、Characteristic parameters such as polarization state，Cause temperature、stress、Magnetic field、Changes occur due to external factors such as electric fields，Therefore, optical fiber can be used as a sensor element，Detect the magnitude of various physical quantities that cause changes in the light wave signal，Dah is the optical fiber sensor。A device that uses external factors to cause phase changes in optical fibers to detect physical quantities，It is called phase modulation sensing fiber optic sensor，There are also amplitude modulation sensing models、Polarization modulation type、Various optical fiber sensors such as light transmission type。
2018-11-23 Reading quantity 251
introduction：1.Use environment：non-flammable、General places of explosive or corrosive gases and machinery without independent requirements 2.Ambient temperature：It changes with the seasons，But not more than40℃ 3.Altitude：Not more than1000m
2018-11-23 Reading quantity 279
introduction：Temperature rise：After running the motor，When measuring with a thermometer，The hot spot temperature rise of the motor surface is80°Cbelow。 Insulation class：Blevel（130°C） Service temperature：-10°C~+40°C（non-freezing） Service humidity：80%below（No place for dew）
2018-11-22 Reading quantity 257
introduction：1、Reaction equation：There are windings on the stator、The rotor is composed of a soft magnetic material。Simple structure、Low cost、Small step Angle，reachable1.2°、But the dynamic performance is poor、Low efficiency、Great fever，Reliability is difficult to guarantee。 2、Permanent magnet：The rotor of permanent magnet stepper motor is made of permanent magnet material，The number of poles of the rotor is the same as that of the stator。It is characterized by good dynamic performance、Large output torque，But this kind of motor has poor accuracy，Big step Angle（Generally speaking7.5°or15°）。
2018-11-21 Reading quantity 247
introduction：The following small series will give you a detailed introduction to Siemens DC servo motor zero setting7Big trick！
2018-11-20 Reading quantity 319
introduction：The constant current power supply of bright latitude has a total3Kind of。 1. The first constant current constant current source series: The output current of this type of power supply is constant，When the load impedance changes（namelyLEDThe series number is different orLEDtheVFChanges due to temperature rise）when，Its output voltage will change accordingly（Within the power supply），The output current does not change。Such asPCD-16;-25/PLD-25/LPLC-18/LPHC-18/LPC-20;-35;-60/APC-12;-16,-25,-35/HVGC-100,-150/LDV-185/LDD-300;-350;-500;-600;-700L(H),1000H. 2. The second typeCV+CClimit（constant）Current series：The power supply is essentially a constant voltage power supply with current limiting function，The output current can be maintained when the load current increases to the current limit value，It will not activate the protection action and interrupt the normal work。This characteristic applies to some loads where the starting current exceeds the rated current，It can effectively eliminate the trouble of downtime c
2018-11-20 Reading quantity 290
introduction：Load cellIt is actually a device that converts a mass signal into a measurable electrical output。The use of sensors should first consider the actual working environment in which the sensor is located，This is crucial to the correct selection of load cells，It is related to whether the sensor can work properly and its safety and service life，And even the reliability and safety of the whole weighing apparatus。
2018-11-19 Reading quantity 236
introduction：Photoelectric speed sensorWorking principle of，Photoelectric sensors consist mainly of transmitters、receiver、The detection circuit consists of three parts。among，The transmitter is used to align the semiconductor light source、Light-emitting diode、Laser diode、Target beam emitted by infrared emitting diode, etc；The receiver can also be divided into photodiodes、phototriode、photocell，There is also a lens in front of the receiver、Optical components such as apertures，It is mainly used to receive the target beam and convert the received light signal to
2018-11-16 Reading quantity 238
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