[问答]

E3633A电源与模拟毫安表电流读数为什么在检测最大电流方面有所不同？

问答对人有帮助，内容完整，我也想知道答案 0 大家好，我有这个E3633A可编程ps型号我用来测量伺服电机的电流。我有一个带有scpi命令的程序来获取空闲并从电源运行当前读数。我用模拟毫安表与pps电流读数进行了比较，我想知道他们为什么在检测最大电流方面有所不同？当模拟毫安表的分流器仅达到约180毫安时，我用pps读取大约300+毫安。我有一个伺服系统与模拟毫安表串联连接到pps，这样当我命令伺服器移动到一定角度时，我可以同时比较读数。为什么会这样？我的伺服电机的运行电流读数非常重要，因为我使用模拟毫安表的读数符合伺服电机的规格，而pps则不符合。我是否需要计算pps当前读数以获得与我的模拟毫安得到的相同的结果？谢谢。以上来自于谷歌翻译以下为原文 Good day to all, I have this E3633A programmable ps model i am using to measure the current in my servo motor. I have a program with scpi commands to fetch idle and running current readings from the power supply. I made comparisons with the pps current reading with the analog milliammeter and i want to know why do they differ in detecting the max current? I read about 300+ milliamps with the pps when the shunt of the analog milliammeter only reach about 180milliamps. I have a servo connected to the pps in series with the analog milliammeter so that i can compare the readings at the same time when i command the servo to move to a certain angle. Why is this so? My running current reading for the servo motor is important that my reading with the analog milliammeter complies with the specs of the servo motor and the pps don't. Do i need to compute the pps current readings to get the same result as what my analog milliameter gets?. Thanks. 0
2019-1-14 11:11:03　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × kingnet_52040 该类别下有 195 个回答。邀请回答 60user7 该类别下有 81 个回答。邀请回答蓝色冰汐该类别下有 45 个回答。邀请回答醉狼工作室该类别下有 41 个回答。邀请回答 ianwhoani 该类别下有 30 个回答。邀请回答 dkhwakd 该类别下有 25 个回答。邀请回答 aaabbb567 该类别下有 23 个回答。邀请回答 e08506806 该类别下有 20 个回答。邀请回答 szzjfyp 该类别下有 18 个回答。邀请回答 sonia87 该类别下有 16 个回答。邀请回答 ningee 该类别下有 16 个回答。邀请回答 zouqinxiang 该类别下有 15 个回答。邀请回答 xj5548 该类别下有 15 个回答。邀请回答 derek88 该类别下有 14 个回答。邀请回答 daichuangs 该类别下有 14 个回答。邀请回答 hzmbs2016 该类别下有 12 个回答。邀请回答 JST2006 该类别下有 12 个回答。邀请回答 fichesw 该类别下有 11 个回答。邀请回答 www037 该类别下有 11 个回答。邀请回答 ToGoodSoft 该类别下有 11 个回答。邀请回答举报 h1654155275.5684 相关推荐 • 无法从e3633a电源读取 3422 • labview程序中为什么用GPIB发送 output off关闭安捷伦E3633A电源输出会滴的一声报错？ 2937 • 无法通过E5805A USB转RS232与E3633A对话 1790 • 如何去测量和检测直流电源的电流 5194 • 为什么手机充电电压相同，但充电电流不一定相同 18792 • LTC3633A-2的应用原理是什么？ 1318 • MCP3421电流检测问题 3404 • 请问有直流电流表吗？ 1338 • i.MX7的VDD_ARM和VDD_SOC的电流消耗规范是什么？ 349 • 交流电压表与电流表为什么会读数不准确 2757 2个回答

答案对人有帮助，有参考价值 0 您好，让我们看看我们可以做些什么来帮助。预期的最大电流是多少？当伺服运行时，E3633A可能会捕获一些浪涌电流。如果您发送一些MEAS：CURR？连续命令会得到什么样的响应？你能给我们一些关于仪表的更多细节（比如型号）吗？以上来自于谷歌翻译以下为原文 Hello, Lets see what we can do to help here. What is the expected maximum current? It is possible that the E3633A is catching some surge current when the servo runs. If you send a few MEAS:CURR? commands in a row what sort of responses do you get? Can you give us some more details about the meter (like the model number)?

2019-1-14 11:21:33 评论举报罗敏

答案对人有帮助，有参考价值 0 张友芬1 发表于 2019-1-14 11:21 您好，让我们看看我们可以做些什么来帮助。预期的最大电流是多少？当伺服运行时，E3633A可能会捕获一些浪涌电流。祝大家好，谢谢你的回复。那么，伺服i的最大运行电流应该在4.8V时为180mA。我不确定浪涌电流，但我在运行时用pps做的读数是一致的。这是电流表型号：ksc1303-2，我认为它是基于我读过的数据表的直流电流表。所以我的程序就像：伺服机构每秒钟都会发出一个角度运动的命令。我在整个过程中监视当前读数（空闲和运行），因此命令每隔20毫秒就连续一次（这是我假设我的程序可以从pps读取电流的最低时间，因为当它低于20毫秒时，发生查询错误。我确实需要读数之间的间隙非常小，以图形方式表示伺服运行状态下的当前读数，只需要大约100毫秒即可达到一定的角度。）。我的空闲电流读数很好，但运行，我不确定。而且，我设法使用34401A数字万用表测量电流并增加了我的困惑，数字万用表直流读数与pps相同，而数字万用表交流读数与模拟直流电流表相同。我不明白它！：/谢谢你的时间。 :) 以上来自于谷歌翻译以下为原文 Good Day Sir, Thanks for the reply. Well, the maximum running current of the servo i have should be at 180mA at 4.8V. I am not sure about the surge current but the readings i made with the pps at running were consistent. This is the ammeter model number : ksc1303-2, i think it's a dc ammeter based on the datasheet i read about it. So my program goes like: a servo is given a command to make angle movements each second. I monitor the current readings (idle and running) through the whole duration of the process so the command is in a row for every 20msec (that's the lowest time i assumed my program can read current from the pps since when it's lower that 20msec, a query error occurs. And i really need a very small gap between readings to graphically represent the current reading at running state of the servo which only takes about 100msec to reach a certain angle.). My Idle current readings are good but the running, i am not sure. And also, i managed to use a 34401A DMM to measure the current and adding to my confusion, the DMM dc readings is the same with the pps and the DMM ac readings were the same with the analog dc ammeter.. I don't get it! :/ Thank you for the time. :)

2019-1-14 11:37:15 评论举报 h1654155275.5684