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introduction： Power-off time delay relay With the development of society，Technology is also booming，Therefore, the development of relays continues to produce a variety of types，And they all have different definitions，Today I will explain the relevant knowledge of time delay relays for you，The principle of power failure delay relay is analyzed、The principle of delay intermediate relay is explained，Participate in the discussion of the principle of energized time delay relays...
2016-02-22 Reading quantity 1665
introduction： 1、Servo system（servo mechanism）Is to make the objects position、orientation、An output controlled quantity such as state can follow an input target（Or value）The automatic control system of arbitrary changes。Servo mainly relies on pulse positioning，Basically you can think of it this way，Servo motor received1Pulse per unit，It will rotate1Each pulse corresponds to the Angle，To achieve displacement，because，The servo motor itself has the function of emitting pulses，So the servo motor rotates at an Angle，Each sends out a corresponding number of pulses，In this way，Connect to servo motor...
2016-02-22 Reading quantity 1616
introduction： catalogue 1The working principle of gear speed sensor2Classification of gear speed sensors3Advantages of two gear speed sensors4Application of gear speed sensor 1Gear speed sensor works...
2016-02-20 Reading quantity 1575
introduction： What are the classification methods of sensors？This paper is a simple introduction to the classification of sensors。Generally speaking，Measure the same parameter under test，A variety of sensors are available。In reverse，The same sensor can also be used to measure multiple measured parameters。therefore，Sensors can be classified in a variety of ways。 1．Provide external power based on whether the sensor requires external power...
2016-02-20 Reading quantity 2451
introduction： Programmable controller（PLC）Installation and maintenance 1 introduction Programmable controller（PLC）It is a new type of general automation control device，It will be traditional relay control technology、Computer technology and communication technology...
2016-02-20 Reading quantity 1688
introduction：
1、Slider part：Hydraulically driven，The slider part consists of the slider、Oil cylinder and mechanical block fine-tuning structure。The left and right cylinders are fixed on the frame，Hydraulically actuate the piston（rod）Drive the slider up and down，The mechanical stop is controlled by a numerical control system。
2016-02-20
Reading quantity 1653
introduction：
When the programmable logic controller is put into operation，The working process is generally divided into three stages，
Immediate input sampling、User program execution and output refresh three stages。Completing these three stages is called a scan cycle。During the entire run，Programmable logic controllerCPUThe above three stages are repeated at a certain scanning speed。
2016-02-20
Reading quantity 1669
introduction：design、Manufacturing and maintenance work have also caused more problems。Other stamping processes have different requirements for the press than the drawing process，For example, the fine pressing process requires the speed of the press slider near the bottom dead point to be small，The forging process requires the press slider to have a fast working speed。
The crank slider working mechanism of the press is in series oval
2016-02-19
Reading quantity 1627
introduction：In-process communication equipment、Automatic device、Household appliance、Automotive electronic devices, etc., where circuit conversion function is required，Relays are available。Due to a wide range of applications，Different user pairs
2016-02-19
Reading quantity 1620
introduction： Automatic lathe in the process of use，It is often encountered that the fifth knife slider does not slide smoothly，Failure to return to the original position when retreating，This can lead to a series of misactions，Resulting in the waste of the workpiece。
2016-02-19
Reading quantity 1627
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