All Questions
Tagged with earth oscilloscope
9 questions
7
votes
3
answers
2k
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Dangers of floating oscilloscope
Conversation between Bob Pease and Paul Rako taken from this video, where Rako talks about modifying an oscilloscope such that it is not connected to earth:
Pease: "Have you ever tried hanging a ...
- 4,529
0
votes
2
answers
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Will I see a sine wave if I connect one oscilloscope terminal to the phase and another to the earth?
I have a doubt regarding a thought experiment I am conducting since I lack access to proper grounding at both my workplace and my house.
The experiment involves the following setup:
I intend to ...
- 862
0
votes
1
answer
220
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DC power supply 10V AC between terminals and mains earth
My DC power supply shows 10V AC between earth and one of the terminals. How can I fix this, and is it safe to probe circuits with an oscilloscope, that are powered by it? The PSU ground terminal is ...
- 13
1
vote
4
answers
334
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Why does this connection not become a low impedance between Positive (Isolated system) and Ground (Earth)?
I was going through a lecture regarding oscilloscope grounding methods and saw this image.
Assume I have the isolated widget powered by an external battery. Now, I am going to measure the signals ...
user220456
1
vote
1
answer
441
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Oscilloscope and Electrical Safety
I was reading an article in a magazine in which the following sentence is written about a circuit that generates a certain waveform on a load R (in which one of its terminals is connected to the earth ...
- 3,590
0
votes
0
answers
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No grounding system available for oscilloscope, what other options are available?
Many old buildings/houses in Europe are so old that they were not built with a grounding system. I happen to live in one were this is the case. The problem is that if I want to use an oscilloscope, it ...
- 1,090
1
vote
0
answers
1k
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Potential difference between DC floating power supply and earth ground
I have a question about a simple DC floating power supply: it is as simple as possible, secondary coil -> bridge rectifier -> filter cap, as shown on the figure below.
If I connect the input of the ...
- 53
3
votes
1
answer
1k
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Oscilloscope ground clips sparks while connecting to power supply
Oscilloscope ground clips sparks while connecting to power supply ground. I do understand The clip is connected to earth ground. But why does it not spark when I am powering a circuit of the supply?
- 31
83
votes
12
answers
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Why on earth are o-scopes earth referenced?
Thinking about it: You would never find a "Grounded" multimeter as robust and useful if a path to ground through the multimeter were introduced, modifying the circuit's behaviour and possibly damaging ...
- 1,392