Measurement 50HZ electric field using PBS-E1  

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mrmc
 mrmc
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27/05/2017 3:47 pm  

Hello,

I'm trying to measure a 50Hz electric field using the PBS-E1 and NF5035.
Using standard setup (button 2) with analog input and 20dB atten I get 150microV. Using the excel the freq MHz : 0,000050, V: 0,000025 the result in V/m is 6132481 (6132kV/m).
Using the internal E-field sensor the elctric field inetnsity is about 110-150V/m.
What I'm doing wrong?

Thanks


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Moderator
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28/05/2017 5:41 pm  

The Excell Calculator only works with 50 Ohm input, the NF-5030 offers a HIGH IMPEDANCE input so you cant use the Excell Sheet to calculate the electric field strength.

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mrmc
 mrmc
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29/05/2017 10:08 am  

Thanks for reply,

Please let me know how can I calculate, in this case, the electric field strength using only the device.

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Moderator
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30/05/2017 11:35 pm  

You need a impedance match so you need to add one of our low frequency amplifiers http://www.aaronia-shop.com/products/br ... f-preamps/

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mrmc
 mrmc
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31/05/2017 9:21 am  

Let's put it together all info:
I need to measure electric field strength>50kV/m. To do this is enough to have: NF5030,PBS-1 , UBBV-NF 25 and Aaronia excel. I'll be able to do this without using MCS, just analog input and the conversion from excel.
It'is correct what I said or I need more devices?

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05/06/2017 4:08 pm  

The NF-5030 offers no dBm readings for the analog input so you cant use the Excell conversion which is based on dBm.

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mrmc
 mrmc
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06/06/2017 6:05 pm  

Thanks for reply,

But how can I measure with NF5030 an electic field strength about 60kV (at 50Hz) ?

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09/06/2017 7:08 pm  

You could "calibrate" the external probe with the internal E-Field Sensor.
E.g. measure 1000 V/m with the internal probe. Then locate the external probe at the same location and check the Volts reading.
Do the same with 2000 V/m etc.
Then you get a nice linear conversion table which you can use for much higher readings e.g. 50kV/m with the external probe.

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mrmc
 mrmc
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12/06/2017 10:24 am  

Ok, I understand what are you saying, but Aaronia doesn't provide any "ready to use" solution ofr using NF5030 with PBS1 probes?


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18/06/2017 9:56 pm  

So fare we dont offer it.

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mrmc
 mrmc
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19/06/2017 11:44 am  

Thanks for reply, but there is something I get rid of.
So, my issue is:
I want to measure 50Hz electric and magnetic filed, using analog input and get the results in V/m and T.
So far I understand that I need : NF503X, PBS1 and UBBV-NF-25.
How can I use them to get values in V/m for electric filed strength and in T for magnetic ones?

Thanks a lot for your help.


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19/06/2017 11:15 pm  

Just as mentioned before: Construct a conversioin table.

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