Photoelectric encoder gaw, pru wa ai shaft ntsa na jak rung geometric galai shai ai lam hpe, nhtoi htoi ai hku nna, pulse (sh) digital quantities ni de galai shai ya ai sensor rai nna, grau nna jai lang ai sensor langai rai nga ai. General nhtoi htoi ai encoder hpe madung hku nna grating disc hte nhtoi htoi ai hpe sawk sagawn ai jak langai hte hpaw da ai. Servo system hta, nhtoi htoi ai encoder gaw mawdaw hte coaxial re majaw, mawdaw shinggrup ai shaloi, grating disk gaw mawdaw hte maren sha lawan ai hku shinggrup ai. Nhtoi-shapraw ai diodes hte kaga electronic arung arai ni hte hpawng de da ai sawk sagawn jak gaw, pulse signal law law hpe sawk sagawn nna shapraw ya ai. Ya aten na motor a lawan ai hpe second mi hta photoelectric encoder a pru wa ai pulse ni hpe sawn la nna chye lu ai. Dai hta n-ga, shinggrup ai lam hpe chye lu na matu, encoder gaw, 90℃phase shai hkat ai lahkawng-channel optical code pru ai lam hpe mung jaw lu nna, dual-channel optical code a masa galai shai ai hte maren, motor a shinggrup ai lam hpe mung chye lu ai. Detection npawt tara hku nna, encoder ni hpe optical, magnetic, inductive hte capacitive ngu nna garan mai ai. Shi a scale ladat hte signal pru ai hkrang hte maren, jat wa ai, hkum tsup ai hte kayau kaya ai ngu nna masum hku garan mai ai.
Jat wa ai encoder
Incremental encoder ni gaw, nhtoi htoi ai n-gun galai shai ai lam a npawt tara hpe hkrak jai lang nna, square wave pulse A, B hte Z phase masum hpe shapraw ai; A hte B pulse lahkawng a phase shai hkat ai lam gaw 90℃, dai majaw shinggrup ai lam hpe loi loi hte dawdan lu ai, Z phase gaw shinggrup ai lam langai hta Pulse langai hpe reference point positioning galaw na matu lang ai. Shi a akyu ni gaw asan sha re ai hkrang masa, hkying hkum hkying hkum law law na ai shadawn shadang jak rung prat, n-gun ja ai anti-interference atsam, kam hpa mai ai lam grai law ai, tsan ai shara de shapoi na matu htuk manu ai. N kaja ai lam gaw, shaft shinggrup ai lam a absolute position shiga hpe n mai shapraw ai.
Hkum tsup ai encoder
Absolute encoder ngu ai gaw, digital n-gun ni hpe hkrak shapraw ya ai sensor langai mi re. Shi a grup yin code disc hta radial maga hku nna concentric code track law law nga ai. Track langai hpra gaw nhtoi-hprawng ai hte n htoi ai sector ni hte hpawng de da ai. Htingbu htingbyen ni a code channel ni a fans ni Zone jahpan gaw lahkawng lang matut mahkai ai lam re. Code wheel ntsa na code channel ni a jahpan gaw, binary nambat ni a jahpan re. Code wheel maga mi de nhtoi htoi ai shara nga ai, maga mi de code channel langai hte langai htap htuk ai nhtoi hpe hkam sha lu ai element nga ai; code wheel gaw shara n bung ai shaloi When, photosensitive element langai hpra gaw nhtoi hkam la ai n hkam la ai hte maren, hkan sa ai madang signal hpe galai shai kau nna, binary number langai hpe hpaw shabawn ai. Ndai zawn re ai encoder a arawn alai gaw, counter n ra ai, shaft a gara shara kaw raitim, dai shara hte htap htuk ai fixed digital code hpe hti shapraw lu ai. Hkrang shala ai hku nga yang, code channel law wa yang, resolution grau tsaw wa na re. N-bit binary resolution nga ai encoder langai a matu, code disk hta code channel n nga ra ai. Miwa mung hta 21-bit absolute encoder galaw ai arung arai ni nga sai.
Absolute encoder gaw shingra tara (sh) shingra tara (Grey code) ladat hpe lang nna nhtoi htoi ai hpe galai shai ai. Absolute encoder hte incremental encoder lapran na shai hkat ai lam gaw, disc ntsa kaw n-htoi htoi ai hte n-htoi tu ai line hkrang hpe mu lu ai. Absolute encoder hta code law law nga mai ai, hti ai code disc kaw na code hte maren absolute shara hpe chye lu ai. Coding design gaw binary code, cyclic code, two’s complement code ni hpe hkap la mai ai rai nna, shi a laklai ai lam ni gaw:
Angle coordinate a absolute manu hpe hkrak hti mai ai; mahkawng da ai shut ai lam n nga ai; power dawm kau ngut ai hpang position shiga n mat na re. Raitim, resolution hpe gaw binary system kaw na bit kade nga ai hpe yu nna dawdan ai, lachyum gaw, hkrak ai lam gaw bit kade nga ai hta madung nga ai.
Hybrid tsep kawp encoder
Hybrid absolute encoder, shi gaw shiga lahkawng hpe shapraw ya ai: shiga langai hpe magnetic pole shara hpe chye na lu na matu lang ai, absolute shiga bungli galaw ai; kaga set gaw incremental encoder a pru wa ai shiga hte maren sha rai nga ai.
