当波形捕获出来后很多工程师觉得波形占屏幕2格就可以很清晰了,没必要将波形调到铺满屏幕格子去看。其实这是一个误区,我们就来看看为什么要让波形铺满示波器屏幕的格子。2格显示和尽量满格显示*明显的就是,波形被“拉长”了,也就是垂直档位变小了,而垂直档位的变化直接影响了垂直测量的准确性。这其中*重要就是示波器8位ADC与垂直量测量的关系。尺子测量就比如用1米尺子和用10厘米的尺子去量1.6cm的物件,米尺可能量出来的就是2cm,或很难去估算,而10厘米的尺子量出来的就是1.6cm。
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PV032R1K4T1NFHS
PV032R1K8S1NFWS
PV032R1K8T1NMMC
PV032R1K1T1WFDS
PV032R1K1AYNMTP
PV032R1K1T1NHCC
PV032R1K1T1WMM1
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PV040R1K1T1NMF1
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PV040L1K1T1NMMC
PV040R1K1S1NFWS
PV040R1L1T1NMMC
PV040R1D8T1N001
PV040R1K1T1NMFC
据悉,2017年*计划90万个充电桩投入使用,到2020年建成450万个充电桩,充换电站数量要求达到1.2万座。可见,充电桩的“火热缺”是电网近年来“头痛”的问题。然而,2015年12月相关部门发布的新修订电动汽车充电接口及通信协议5项*标准是否完全使得充电桩行业的问题迎刃而解?在兼容性方面,交直流充电接口型式及结构与原有标准兼容,新标准修改了部分触头和机械锁尺寸,但新旧插头插座能够相互配合,直流充电接口增加的电子锁止装置,不影响新旧产品间的电气连接,用户仅需更新通信协议版本,即可实现新供电设备和电动汽车能够保障基本的充电功能。
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PV040R1K1T1WFR1
PV040R1K1T1NKLC
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PV040R1K1T1NFFC
PV040R1K1T1NF
PV040R1K1T1N100
PV040R1K1T1WMR1
PV040R1K1T1NFRZ
PV040R1K1T1WMRC
PV040R1K1T1NMMK
PV040R1K1T1NMMC
PV040R1K1T1VMMC
PV040R1K1T1NFHS
PV040R1K1T1NGLC
PV040R1K1T1NHLC
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PV040R1D1T1NGCC
PV040R1K1T1NELA
PV040R9K1T1NMMCK0188
PV046R1K1T1N001
PV046R1K1T1N100
PV046R1K1T1NFDS
PV046R1K1T1NFR1
PV046R1K1T1NFHS
PV046R1K1T1NMMC
PV046R1K1T1NMM1
PV046R1K1T1NMRC
PV046R1K1T1NFWS
PV046R1K1T1NFRC
PV046R1K1T1NFF1
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PV046R1D3T1NFFC
PV046R1K1A1NF
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PV046R1D1T1NHCC
PV046R1K1T1NFFC
PV046R1K1T1NMFC
PV046R1K1T1NMF1
PV046R9K1T1NMMC
PV046R1K1AYNMRC
PV046R1K1JHNMMC
PV046R9K1T1NFWS
PV046R1K4T1NMR1
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PV046R1K1S1NFWS
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PV046R1K4T1NFR1
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PV046R1K1T1NMMCX5934
PV063R1K1T1NMF1
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PV063R1K1T1NMMK
PV063R9L1TNMPCK0
PV063R1K1A1VFPR
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PV063R9L1T1NFWS
PV063R1K1A1NFHS
PV063R1K1T1NFFP
PV063R1K1T1NFPR
PV063R1K1T1NGLC
PV063R1K1T1N001
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系统描述AOI是检测PCB表面图形品质(如表面缺陷、断路和短路)的设备,用于生产过程中半成品品质检测,是高精密单层印制板,尤其是多层印制板加工的关键技术。测试系统集光学、精密机械、识别诊断算法和计算机技术于一体。检测时,机器通过电荷耦合器件(CCD)或激光自动扫描PCB,采集图像后送与计算机处理,再与数据库中的标准数据比较,查出PCB上缺陷,用显示器或自动标识系统显示或标识缺陷,供维修人员修理。项目产品清单主控设备:研祥EPI整机IPC-685E该主控设备的主板是一款采用IntelG41芯片组,支持IntelLGA775封装双核、四核E53、E84、Q94等系列CPU的高性能平台;支持2条8/166M的DDR3内存条,容量支持4GB;板载1个1/1/1Mbps网络接口;支持VGA+VGA双显示功能;支持4个SATA接口;USB2.接口、2个串口(其中1个支持RS-232/RS-422/RS-485)、1个并口等丰富的I/O接口。
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