【求助】关于电化学阻抗谱遇到的问题,求助！

图中给的点太少了,把数据文件给一下,要TXT或者直接粘贴的也可以,看全部才能知道可能是为什么啊!

楼主的参数设置，扰动频率最好不要超过10mV。
其次，最高频率只有50KHz，能看出半圆来，这个体系已经很不错了，不要强求。

很感谢两位的回复,但是我的师兄曾经用这台机器扫了6个小时的阻抗谱,也是只有一半,其中交流幅值我从1到60都试过了,不是点散乱就是只有一半的点.频率也从50HZ-10000HZ试过,也不行.是不是机器的问题呢?或者阻抗不匹配?也不应该是这问题,因为导线是原配的啊.
我不知道各位大侠是不是用兰力科2005型号的机器的时候也遇到过这样的问题.

下午再扫一个,把数据导出给大家看看.谢谢关照小弟!

实验数据如下:
2007-08-28 15:02:42

测量方法：IMPF

电位Eo/mV = 300
交流幅值Vac/mV = 5
最大频率fmax/Hz= 50000
最小频率fmin/Hz= 1
频率点数Nf = 120
等待时间to/s = 0

电流量程A/V = 2
放大倍数X = 0
低通滤波频率f = 6
频率分布规律 = 1

2007-08-28 15:01:20

No. 实测频率f/Hz 阻抗Z/Ohm 相位P/deg. 实部Z'/Ohm 虚部Z''/Ohm
001, 6.2107E+04, 1.6384E+05, 250.010, -5.6059E+04, -1.5395E+05
002, 4.6580E+04, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
003, 4.6580E+04, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
004, 4.6580E+04, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
005, 3.7264E+04, 1.6384E+05, -37.994, 1.2912E+05, -1.0085E+05
006, 3.7264E+04, 1.6384E+05, -37.994, 1.2912E+05, -1.0085E+05
007, 3.1053E+04, 1.6384E+05, -49.994, 1.0534E+05, -1.2549E+05
008, 2.6617E+04, 1.6384E+05, -7.137, 1.6257E+05, -2.0354E+04
009, 2.6617E+04, 1.6384E+05, -7.137, 1.6257E+05, -2.0354E+04
010, 2.3290E+04, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
011, 2.0702E+04, 1.6384E+05, -29.994, 1.4190E+05, -8.1900E+04
012, 1.8632E+04, 1.6384E+05, -37.994, 1.2912E+05, -1.0085E+05
013, 1.8632E+04, 1.6384E+05, -1.994, 1.6374E+05, -5.7004E+03
014, 1.5527E+04, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
015, 1.4332E+04, 1.6384E+05, -26.917, 1.4609E+05, -7.4165E+04
016, 1.3309E+04, 1.6384E+05, -32.852, 1.3764E+05, -8.8873E+04
017, 1.2421E+04, 1.6384E+05, -37.994, 1.2912E+05, -1.0085E+05
018, 1.0960E+04, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
019, 1.0351E+04, 1.6384E+05, -29.994, 1.4190E+05, -8.1900E+04
020, 9.3160E+03, 1.6384E+05, -37.994, 1.2912E+05, -1.0085E+05
021, 8.4691E+03, 1.6384E+05, -28.176, 1.4443E+05, -7.7357E+04
022, 7.7633E+03, 1.6384E+05, -34.994, 1.3422E+05, -9.3955E+04
023, 6.9007E+03, 1.6384E+05, -29.994, 1.4190E+05, -8.1900E+04
024, 6.4248E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
025, 5.8225E+03, 1.6384E+05, -31.244, 1.4008E+05, -8.4976E+04
026, 5.3234E+03, 1.6384E+05, -27.709, 1.4505E+05, -7.6177E+04
027, 5.1756E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
028, 5.1756E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
029, 4.3130E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
030, 3.6968E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
031, 3.6968E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
032, 3.2347E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
033, 2.8753E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
034, 2.5878E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
035, 2.3525E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
036, 2.1565E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
037, 1.9906E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
038, 1.8484E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
039, 1.7252E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
040, 1.5222E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
041, 1.3620E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
042, 1.2939E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
043, 1.1763E+03, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
044, 1.0782E+03, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
045, 9.5844E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
046, 8.9234E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
047, 8.0868E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
048, 7.3937E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
049, 6.6353E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
050, 6.1614E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04

051, 5.6256E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
052, 5.0741E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
053, 4.6210E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
054, 4.2423E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
055, 3.8624E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
056, 3.5449E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
057, 3.2347E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
058, 2.9407E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
059, 2.6956E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
060, 2.4646E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
061, 2.2502E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
062, 2.0538E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
063, 1.8752E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
064, 1.7138E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
065, 1.5684E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
066, 1.4297E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
067, 1.3070E+02, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
068, 1.1925E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
069, 1.0873E+02, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
070, 9.9530E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
071, 9.0799E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
072, 8.2942E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
073, 7.5888E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
074, 6.9377E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
075, 6.3426E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
076, 5.7892E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
077, 5.2920E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
078, 4.8370E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
079, 4.4160E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
080, 4.0371E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
081, 3.6863E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
082, 3.3695E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
083, 3.0770E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
084, 2.8128E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
085, 2.5698E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
086, 2.3483E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
087, 2.1458E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
088, 1.9604E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
089, 1.7908E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
090, 1.6368E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
091, 1.4958E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
092, 1.3670E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
093, 1.2489E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
094, 1.1410E+01, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
095, 1.0426E+01, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
096, 9.5279E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
097, 8.7072E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
098, 7.9551E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
099, 7.2711E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
100, 6.6438E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
101, 6.0703E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
102, 5.5472E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
103, 5.0681E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
104, 4.6318E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
105, 4.2319E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
106, 3.8676E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
107, 3.5338E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
108, 3.2291E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
109, 2.9507E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
110, 2.6962E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
111, 2.4638E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
112, 2.2514E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
113, 2.0572E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
114, 1.8798E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
115, 1.7177E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
116, 1.5697E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
117, 1.4343E+00, 1.6384E+05, -25.724, 1.4761E+05, -7.1108E+04
118, 1.3107E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
119, 1.1977E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04
120, 1.0944E+00, 1.6384E+05, -14.265, 1.5879E+05, -4.0368E+04

这个贴子在这里快一个月了，不知道提问者的问题解决了没有？不行就找厂家的工程师给看看呗！厂家的销售人员也经常在这个坛子里出没。