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introduction：In all kinds of switches，There is a kind of object that is close to it“perception”Capable element??Displacement sensor。The switch on or off can be controlled by the sensitive characteristic of the displacement sensor to the approaching object，This is the approach switch。 MICROSONARseries Proximity switch When an object moves towards the approach switch，And close to a certain distance，The displacement sensor does“perception”，The switch works。This distance is usually called“Detection distance”。But different proximity switches have different detection distances。
2018-08-04 Reading quantity 323
introduction：Ultraviolet spray（Its what we always talk aboutUVprinter）It is a new printing technology emerging in recent years。UVThe product has the following characteristics： 1、UVPrinter adoptionUVDrying ink。Uv fixed line has environmental protection characteristics，Can effectively reduce the pollution to the environment. 2、UVA printer means ink inUVAfter curing, it adheres to the substrate surface。therefore，The surface of the substrate has a concave and convex sense and a strong three-dimensional sense。 3、Used in light box advertising，Sudden appearance of product，Strong visual impact。
2018-08-04 Reading quantity 355
introduction：Parameters of three-phase asynchronous motor
2018-07-31 Reading quantity 392
introduction：Wiring method of temperature relay Temperature relay is a kind of temperature control switch with bimetal plate as temperature sensing component,When the appliance is working normally,The bimetal is in a free state,The contact is closed/Off state,When the temperature reaches the operating temperature,The bimetallic sheet is heated to produce internal stress and rapid action,unpack/Make contact,sever/on-circuit,Thus play a role in temperature control。When the appliance is cooled to reset temperature，Contact automatically closes/unpack，Restore the normal working state。
2017-11-02 Reading quantity 256
introduction：Water heater temperature relay Water heater temperature relay is a kind of temperature control switch with bimetal plate as temperature sensing component,When the appliance is working normally,The bimetal is in a free state,The contact is closed/Off state,When the temperature reaches the operating temperature,The bimetallic sheet is heated to produce internal stress and rapid action,unpack/Make contact,sever/on-circuit,Thus play a role in temperature control。
2017-11-02 Reading quantity 125
introduction：Travel switch，Position switch（Also known as limit switch）A kind of，It is a commonly used small current main electrical appliance。The contact action of the moving parts of the production machinery is used to make the control circuit switch on or switch off，To achieve a certain annoying control purpose，usual，This type of switch is used to limit the position or stroke of mechanical motion，The motion machine automatically stops according to a certain annoying position or stroke、Reverse stop、Reverse motion、Variable speed movement or automatic round-trip movement, etc。
2018-07-18 Reading quantity 206
introduction：（1）Insulation check before installation。Before transformer installation，Insulation must be checked，Check that the conditions of use are in accordance with the manufacturers regulations。 （2）Strengthen the seal of the transformer。Transformer-neutral transport、deposit、operation，Its sealing should be good。For this purpose，Combined maintenance、Check the seal of each part，Perform leak detection tests if necessary，Prevent moisture and moisture from entering。 （3）Clean up the debris in the transformer thoroughly。Transformer installation、During overhaul，To prevent welding slag、Copper wire、Iron and other debris enter the transformer，And completely eliminate the welding slag in the transformer、Steel wire、iron、Mud and other debris，Rinse thoroughly with qualified transformer oil。 （4）Protection against insulation damage，Transformer maintenance hood、Core time，Insulation should be protected from damage，In particular, the internal insulation distance is relatively compact transformer，Do not pull the lead、Coils and braces are i
2018-07-18 Reading quantity 390
introduction：In any switching power supply design，PCBThe physical design of the board is all about the latter，If the design method is improper，PCBCould emit too much electromagnetic interference，The power supply is unstable。
2018-07-17 Reading quantity 392
introduction：The following is a Siemens inverter for you to talk about the causes and solutions of inverter overvoltage。
2018-07-16 Reading quantity 238
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