[{"data":1,"prerenderedAt":73},["ShallowReactive",2],{"post-855832a8207e4c4f195":3,"recom-855832a8207e4c4f195":21},{"summary":4,"updateTime":5,"title":6,"cateName":7,"content":8,"tags":9,"createTime":10,"cateId":11,"isTop":12,"nickname":13,"siteId":14,"id":15,"isPage":12,"slug":16,"views":17,"status":18,"uid":15,"coverImageUrl":19,"createDate":20,"cate":11,"keywords":9},"What is a photoelectric encoder? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.",1777336261659,"What is a photoelectric encoder?","QUESTIONS & ANSWERS","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">What is a photoelectric encoder?\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">Working principle: When the axis of the photoelectric encoder rotates, both A and B lines produce pulse output. The A and B two-phase pulses are separated by a phase angle of 90 degrees, so that the rotation direction of the photoelectric encoder and the motor speed can be measured.The line is used to measure the number of pulses, and the B line and the A line can be used to measure the direction of rotation. N is the motor speed Δn=ND-ND. For example, the speed of our car is 1.5m/s, the diameter of the wheel is 220mm, C=D*Pi,The number of pulses output per second by the optical code disc is: PD=130×600/60=1300 pulses. When the number of detected pulses deviates from the calculated standard value, the correspondence between the voltage and the number of pulses can be used.Calculate the incremental voltage △U output to the servo system, after D/A conversion, calculate the number of incremental pulses, and then subtract it.At this time, the system starts the position loop, continuously measures the number of pulses output by the photoelectric encoder per second, and compares it with the standard value PD (ideal value) to calculate the increment ΔP and convert it into the corresponding D/A.Output digital quantity, reduce the number of pulses of the motor by the controller, and subtract the increment based on the original output voltage.According to its scale method and signal output form, it can be divided into three types: incremental, absolute and hybrid.Its advantage is that the principle structure is simple, the average mechanical life can be more than tens of thousands of hours, the anti-interference ability is strong, the reliability is high, and it is suitable for long-distance transmission.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\">The disadvantage is that the absolute position information of the shaft rotation cannot be output.One side of the code wheel is a light source, and the other side has a photosensitive element corresponding to each code channel; when the code wheel is at different positions, each photosensitive element converts a corresponding level signal according to whether it is illuminated or not to form a binary number.Absolute encoders use the natural binary or cyclic binary (Gray code) method for photoelectric conversion.The absolute encoder differs from the incremental encoder in that it has a light-transmissive, opaque line pattern on the disc. The absolute encoder can have several codes, and the absolute position is detected based on the code on the read code disc.However, the resolution is determined by the number of bits in the binary, that is, the accuracy depends on the number of bits, and there are currently 10, 14 and so on.The photoelectric encoder is an angle (angular velocity) detecting device, which converts the angular amount input to the shaft into a corresponding electric pulse or digital quantity by using the photoelectric conversion principle, and has the advantages of small volume, high precision, reliable operation, digital interface, and the like..\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>","photoelectric,encoder",1776793265000,"4d7f472a17ef876377d",0,"Admin","2028706543895019522","855832a8207e4c4f195","what-is-a-photoelectric-encoder",241,1,"","Apr 22, 2026",[22,33,40,48,56,65],{"id":23,"title":24,"summary":25,"content":26,"cover":27,"cateId":11,"tags":28,"views":29,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":32,"siteId":14},"f13d7a28dfad5ec4193","What are the shapes of label-type electronic labels?","What are the shapes of label-type electronic labels? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the shapes of label-type electronic labels?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">Label electronic tags are available in a variety of shapes, such as strips, discs, keychains, and watches. They can be used for item identification and electronic billing, such as air baggage tags and pallet tags.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">",null,"electronic",361,"2026-04-22 01:44:18","2026-04-28 08:21:10","what-are-the-shapes-of-label-type-electronic-labels",{"id":34,"title":35,"summary":36,"content":37,"cover":27,"cateId":11,"tags":27,"views":38,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":39,"siteId":14},"ec9dce1e841180345a8","OSPF has several types of protocol packets?","OSPF has several types of protocol packets? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">OSPF has several types of protocol packets?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">(1) Hello (Hello) message: Periodically sent to discover and maintain OSPF neighbor relationships.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\">(2) Database Description (Database Description) message: describes the summary information of the local LSDB, used for database synchronization between two routers.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\">(5) Line State Acknowledgment message: used to confirm the received LSA.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>",185,"ospf-has-several-types-of-protocol-packets",{"id":41,"title":42,"summary":43,"content":44,"cover":27,"cateId":11,"tags":45,"views":46,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":47,"siteId":14},"e73149d45ecea0cfef7","What are the characteristics of a microcontroller?","What are the characteristics of a microcontroller? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the characteristics of a microcontroller?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">Compared with the embedded microprocessor, the biggest feature of the microcontroller is that it is singularized and the volume is greatly reduced, so that power consumption and cost are reduced, and reliability is improved.Microcontrollers are currently the mainstream of the embedded system industry.The on-chip peripheral resources of the microcontroller are generally rich and suitable for control.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","characteristics,microcontroller",342,"what-are-the-characteristics-of-a-microcontroller",{"id":49,"title":50,"summary":51,"content":52,"cover":27,"cateId":11,"tags":53,"views":54,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":55,"siteId":14},"df3bcc91f1ae9f67d52","What are the main technical features of the MAX85952/85962?","What are the main technical features of the MAX85952/85962? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the main technical features of the MAX85952/85962?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">1 Drives up to 8 white LEDs with 25mA current. The temperature derating function allows the same brightness with fewer white LEDs (MAX8596Z); 22.6~5.5V input range, low input ripple voltage peak-to-peakFor l2mV, direct PWM internal filter; 386% efficiency (PLED/PIN); 4 flexible brightness control,\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","technical",455,"what-are-the-main-technical-features-of-the-max85952-85962",{"id":57,"title":58,"summary":59,"content":60,"cover":27,"cateId":11,"tags":61,"views":62,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":63,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":64,"siteId":14},"d7ca356aabdc09b4554","What are the structures of magnetic-sensitive transistors?","What are the structures of magnetic-sensitive transistors? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the structures of magnetic-sensitive transistors?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">The NPN type magneto-sensitive triode is formed on the weak P-type intrinsic semiconductor by an alloy method or a diffusion method to form three junctions, that is, an emitter junction, a base junction, and a collector junction.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","transistors",397,"2026-04-28 08:21:11","what-are-the-structures-of-magnetic-sensitive-transistors",{"id":66,"title":67,"summary":68,"content":69,"cover":27,"cateId":11,"tags":70,"views":71,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":63,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":72,"siteId":14},"cd4b9e75dcac3559bf0","What are the components of FPGAs, CPLDs, and other types of PLDs?","What are the components of FPGAs, CPLDs, and other types of PLDs? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the components of FPGAs, CPLDs, and other types of PLDs?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">They are composed of three parts:\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\"> 1 a two-dimensional array of logic blocks, which constitute the logic component of the PLD device;\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\"> 2 input/output blocks; 3 interconnection resources connecting the logic blocks, connecting lines of various lengthsComposition, which also has some programmable connection switches,\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","components,FPGAs,CPLDs",94,"what-are-the-components-of-fpgas-cplds-and-other-types-of-plds",1777336260584]