Photoelectricity sensor type selecting and use note

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The working principle of photoelectricity sensor is through be opposite infra-red the block of emissive light is broken and guide, be in infra-red the judgement that the voltaic change that receives tubal induction to go out will come implementation leaves and close. Groove smooth Ou also calls groovy type photoelectricity switch normally is U structure normally, its emitter and receiver are located in the both sides of U chamfer respectively, form one smooth axis, pass U chamfer when object be detectinged and when block breaks smooth axis, the switch that photoelectricity switch produced to detect measures signal. Switch of groovy type photoelectricity compares on the safe side suit to detect high speed changes, resolution is transparent with translucent object. One, its type selecting basically considers type selecting have at 3 o'clock: Groove is wide want much wider; resolution (light seams width) ; secures means 1, groove is wide, detect the chamfer that the object needs to pass groove smooth Ou, ability realizes block to break to infra-red light, the chamfer of photoelectricity sensor is so wide want wide at detecting object, want to have certain surplus, facilitating installation. 2, the resolution of groove smooth Ou, if detect,content is a tine dish, its age the width of dish of tine is D, age dish of alveolar width be 3, criterion the light of groove smooth Ou seams width to ask to be less than D, and be less than F, such ability assure to be able to snap the block with infra-red effective light and guide, satisfying afore-mentioned conditions to fall, the choice seams wide chamfer smooth Ou solely. 3, groove smooth Ou has take fixed Kong He not to bring fixed air two kinds, according to actual condition choice. 4, install the position. When sensor is installed, should make detect tine dish external diameter exceeds 1-2mm of smooth axis of groove smooth Ou. Such ability are effective block stops the ray. 2, periphery circuit parameter chooses 1, when the periphery circuit that choosing groove smooth Ou, how much is the laden resistor that decides groove smooth Ou receives a valve first, choose the electric current of infra-red transmitting tube according to the changeover efficiency of groove smooth Ou again. 2, the athletic rate of the object that be measured is rapidder (be like 1-2kHz) , in principle is infra-red the laden resistor that receives a valve takes a value to answer somes small. 3, occurrence problem of in use of sensor of use note photoelectricity how to do? How to want to you just can reduce photoelectricity sensor breakdown? This is the problem that when a lot of users are using photoelectricity sensor, can encounter, how should solve these problems so, what notice photoelectricity sensor more is in actually in daily life use what can reduce breakdown to happen, below small make up will introduce photoelectricity sensor to use a note. 1, the front face of sensor of the photoelectricity in using and the workpiece that are detected or object surface must keep parallel, the changeover efficiency of such photoelectricity sensor is highest. 2, when installation solders, the ministry of the root that cite a base of photoelectricity sensor and solder dish the least space must not be less than 5mm, when soldering otherwise, easy attaint is in charge of core. Or the change that causes function tubal core. Weld time should be less than 4 seconds. 3, the smallest to shooting type photoelectricity sensor can detect 80% what width is width of lens of switch of this kinds of photoelectricity. 4, should use perceptual load (wait like the lamp, electromotor) when, impulse current of its transient state is bigger, likelihood the photoelectricity sensor of deterioration or attaint communication second line, below this kind of circumstance, come to load change through communicating relay please use. 5, the lens of infrared photoelectricity sensor can be wiped with the paper that brush lens, ban wait for chemical with attenuant dissolvent, lest permanent damage is plastic lens. 6, the scene that is aimed at an user asks actually, below a few relatively abominable conditions, be like the circumstance with more dirt, produces photoelectricity sensor increased on the choice of sensitivity 50% , photoelectricity sensor is lengthened in order to suit to uphold periodic requirement in be used for a long time. 7, photoelectricity sensor must be installed receiving illuminate be in without Jiang Guangzhi, because infra-red light of Jiang Guangzhong will be affected,receive regular job of the canal. CNC Milling