8位半万用表大比拼.pdf

8 位半万用表大比拼 2008-06-14 17:34 要了解 8 位半这种目前精度最高的数字万用表，就不能不了解8 位半万用表的历史，但限于个人认知，很多历史背景并不了解，所以错误在所难免，如果您知道事实，敬请指正。虽然我可能不是最适合写这篇文章的人，但我仍然愿意抛砖引玉，吸引更多大牛参与进来，相互学习。1.历史第一台 8 位半万用表相信是英国Solarton生产的 7081，采用多斜积分转换技术。Solartron的万用表部门后被Schlumberger 收购。下图即为Solartron/Schlumberger推出的 7081。但现在 schlumberger的网页上已查不到7081，市面上只有二手流通。要了解 Schlumberger,就不得不提及Willtek，且看下面的介绍。威尔泰克通讯技术有限公司的发展轨迹可以追溯到1957 年，当时由一群工程师在慕尼黑南部创办了最初的公司。几年后该公司被Schlumberger 收购，并管理公司达36 年之久。1994 年 Schlumberger 把公司卖给了Wavetek 公司，同时将美国印第安那州的团队并入。1998 年，Wavetek 公司与德国的Wandel&Goltermann 公司合并成立WWG 公司。两年后美国Dynatech 公司买下了WWG 公司，并将它与其子公司TTC合并。Acterna 公司由此诞生，该公司在世界各地拥有员工4800 名。其无线网络部的一个分部无线电仪器部2001 年接管了英国的 Chase通讯公司以及它的无线空中接口业务。在 2002 年，Acterna 公司管理层通过MBO，剥离了它的无线仪器部门。2003 年 3 月，Investcorp公司购得其多数股权，为Willtek公司融资，用于开拓公司的新产品和新市场。Willtek 于 2005 年 7 月成为 Wireless Telecom Group,Inc.的全资子公司。图 1，Solartron/Schlumberger 7081 英国的 Datron 是第二个推出8 位半万用表的厂商，最早型号是1271,同样采用了多斜积分技术。Datron 在 92 年被 wavetek 收购，推出了共有品牌的1281。2000 年 Fluke 又收购了wavetek，在 1281 的基础上，进行了改进，于 2002 年推出了自有品牌的8 位半万用表8508A，号称要与Agilent的 3458A 火拼。这款仪表的命名也是以考级数字多用表命名，瞄准的目标用户是校准实验室。文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2文档编码:CC7O1S7N2E2 HM2E10M3C1W2 ZO5C3F8L6O2图 2 Datron 1271 图 3 Datron 1281 图 4 Wavetek 1281 文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1图 5 Fluke 8508A 德国 Prema也推出过8 位半万用表6048。关于 prema 我知之甚少，只了解到它是一家老牌的精密数字仪表生产厂家，代表产品为万用表。天水长城电工仪器厂曾组装生产过其5000，6000 系列 5 位半，6 位半，以及5017 7 位半万用表。由于引进的早现国内仍有使用。网上关于 Prema 6048 的介绍很少，以下链接有比较详细的介绍。不过可惜的是，prema 目前已退出测试测量市场，关注于模拟IC 和混合信号ASIC和 ASSP市场，网站。也就是说目前市场上流通的prema 万用表均为二手。图 6 Prema 6408 Agilent在很早之前就推出了8 位半万用表3458A，一推出就以其无与伦比的稳定性和高速测量成为实验室的传递标准，这个情况一直持续到2002 年 Fluke 推出 8508A。但其的积分线性、的微分线性（类似No missing code）指标，目前还是无人能比。文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1图 7 Agilent 3458A Keithely后来也推出了8 位半万用表2002，这款仪表的突出优势在于直流电压档跟它的很多纳伏表一样具有1nV的灵敏度，电阻档具有100nOhm的灵敏度，以及-200-1820 温度测量范围，并在整个范围内都保持了最小0.001 分辨率，保持了8 位半模式下最快的测量速度。图 8 Keithley 2002 日本的 Advantest也推出了自己的8 位半万用表 R6581，大体参数和Agilent的 3458A差不多，最有特色的是其电流档，直流电流有最高灵敏度100fA,但交流电流档的频响却只有5kHz,比其它表差了很多。目前的最新型号R6581D，去掉了R6581的所有交流测量能力，只支持文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1直流和电阻档位。文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1图 9 Advantest R6581 所以现在市面上能见到的在产的8 位半万用表就只有4 种：R6581,2002,3458A,8508A 2.对比常规参数这里只对比共同特性，对某一型号特有的功能不做比较。Advantest R6581 最大显示1,199,999,999,可测试 DC/ACV，DC/ACI，R，F，T。性能参数大体和Agilent3458A相当。Keithley 2002 最大显示210,000,000，可测试DC/ACV,DC/ACI，R，F，T。温度测试支持RTD，热电偶两种传感器，而且在-200 1820测量范围内都保持了最小0.001 分辨率。但据说其电流档不怎么样。Fluke 8508A 最大显示199,999,999,可测试 DC/ACV,DC/ACI，R,T,不支持频率周期测量。定位为实验室参考级别的8508A的确有最宽的测量范围和最高准确度，尤其是电阻和电流档。电阻最高支持到 20G，电流档不需要分流器就能支持到20A。但其的缺点是测量速度慢，在8 位半模式下需要 6 秒才能得到一个读数。Agilent 3458A 最大显示120,000,000，DC/ACV，DC/ACI，R，F，可以通过数学运算测量温度，支持热敏电阻和 RTD。3458A可谓是经久不衰，在所有8 位半万用表里有最快的反应速度。在长期稳定性上比8508A稍差，但在短期稳定性，线性度，噪音以及转移特性方面都有最好表现，并提供了极其丰富的数学功能。表 1，基本规格对比文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文档编码:CS8R9M2Z9C1 HE2R9X3R6L1 ZB7T5Z7B2V1文