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introduction：The development of speed sensorless control technology begins with the conventional transmission control system with speed sensor，The starting point to solve the problem is to use the measured stator voltage、The speed sensor is replaced by the speed estimation of easily detected physical quantities such as current。Today, Xiaobian will introduce you to the control method without speed sensor！
2017-11-10 Reading quantity 273
introduction：People take classical electromagnetism as the theoretical basis,Displacements that do not facilitate quantitative detection and processing、position、Liquid level、dimension、Flow rate、speed、Physical quantities such as vibration are converted for easy quantitative detection、The amount of electricity that facilitates the transmission and processing of information。This is the displacement sensor that is widely used in production and life。
2017-11-10 Reading quantity 279
introduction：Schneider Electric can close、Carrying and breaking current under normal loop conditions，And can be closed、Load and break within the specified time Abnormal loop condition(Including short-circuit condition)Under the current of the switching device。Mainly for the worlds customers to provide perfect solutions、A full range of products and components as well as thoughtful service。 Circuit breakerAccording to its range of use is divided into high-voltage circuit breakers and low-voltage circuit breakers，The boundary between high and low pressure is blurred，Generally will3kVThe above are called high-voltage appliances。 Low-voltage circuit breaker is also known as automatic switch，colloquially"Air switch"Also refers to the low-voltage circuit breaker，It is both a manual switch function，It can automatically lose pressure、undervoltage、Over duty、And short circuit protection of electrical appliances。It can be used to distribute electricity，Start the asynchronous motor infrequently，Protect power lines and m
2017-11-09 Reading quantity 278
introduction：Industrial belts, as the name suggests, are belts used in industry，Also known as the drive belt,It is widely used for power transmission on machinery and equipment driven by electric motors and internal combustion engines。Depending on the use and structure,It can be divided into different categories。geared、Chain drive comparison，Industrial belt drive has a simple mechanism、Low noise and low equipment cost advantages，Widely used in a variety of power transmission。
2017-11-09 Reading quantity 193
introduction：Principle and characteristics of inclinometer
2017-11-09 Reading quantity 377
introduction：The use of inclination sensor in satellite radar
2017-11-09 Reading quantity 205
introduction：In our opinion, Omron relay is a common electrical appliance，Thermal relay because of its simple structure，Easy to install and use, it is widely used in overload protection of motor。According to the motor starting current size and length of time，Correctly configure how the thermal relay is connected in the circuit，It is the key to select the setting current of thermal relay reasonably。
2017-11-09 Reading quantity 215
introduction：Aeronautical power plant、Landing gear system、Navigation systems are among the top three systems reported by airlines for aircraft use difficulties。among，Landing gear system failure can easily cause the aircraft to turn back、Irregular events such as diversion，Bring economic losses to the company，Bring hidden dangers to aviation safety。
2017-11-09 Reading quantity 197
introduction：40Since the emergence of the synchronous belt,Because of its unique advantages, it is widely used in modern machinery industry.After more than half a century of development,The synchronous belt has been developed from a single trapezoidal tooth to a circular arc tooth、Semi-circular tooth、Parabolic teeth in many forms.The material has also developed from neoprene to rubber and polyurethane. Structure of the synchronization belt:The synchronization belt consists of a tensile core、Filled with rubber and toothed bread cloth.
2017-11-08 Reading quantity 186
introduction：Blacksmith support seat dealer The blacksmith support is the bearing that connects the lead screw to the motor，Construction with special features on the finished shaft end of standard ball screw stock，Standardized support units are preparedEK、EFtype，A standard support unit is prepared for the general ball screwBK、BFtype。If you want to buy genuine blacksmith support you can go to the Fengye mall to buy，Because all the support seats they bought were original and authentic。
2017-11-08 Reading quantity 193
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