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AndreyG
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How to build Non-contact DC Voltage detector/sensor?
SEM, that's pretty much it.AndreyG said:How to build Non-contact DC Voltage detector/sensor?
berkeman said:SEM, that's pretty much it.
Yes, sorry if it wasn't obvious.davenn said:SEM ? (only thing I could put to that was scanning electron microscope ??)
Well then you should have posted that. And you need to post about your thoughts to avoid getting an infraction for being obnoxious...AndreyG said:Dear Berkeman, you over-simplifying it. At least one more method I know myself - field mills.
If you know of a solution, and are asking for additional solutions, post what you know. Please do not waste our time here. We do not appreciate that. We enjoy helping people, but do not appreciate lazy people wasting our time.AndreyG said:Dear berkeman I found your replies confusing sorry. I did not mean to be obnoxious or anything personal. I am new here, asked plain question, got pointless disrespectful sarcasm from you. It does not help.
Have good day.
Baluncore said:You can measure the local voltage gradient by moving a FET gate connection backwards and forwards along a line towards the unknown voltage.
Yes. But we do not know the magnitude of the voltage or the energy involved. That may destroy a FET. It would take exceptionally low leakage diodes to protect the gate.AndreyG said:Do you mean to move it mechanically?
sophiecentaur said:DC?
Good thinking young man. Sensitivity and calibration should be soluble.anorlunda said:Yes DC. Put a DC charged wire near the bulb and see distortions is the patterns.
AndreyG said:. Idea of using FET with spatial modulation as suggested by baluncore is scheduled for tests.
A non-contact DC voltage detector is a handheld device used to detect the presence of direct current (DC) electricity without the need for physical contact with the electrical source. It uses an electric field to determine the presence and strength of the DC voltage.
Non-contact DC voltage detectors use an antenna or probe to detect changes in an electric field. When the detector is near a source of DC voltage, an electric field is created and the detector senses this change, emitting an audible or visual alert to indicate the presence of voltage.
Yes, non-contact DC voltage detectors are generally considered safe to use when following proper safety precautions. However, it is important to note that they cannot detect all types of electrical hazards, so it is important to always use caution and follow proper safety procedures when working with electricity.
One of the main advantages of using a non-contact DC voltage detector is that it allows for quick and easy detection of voltage without the need for physical contact. This can save time and reduce the risk of electric shock. Additionally, non-contact detectors are typically small and portable, making them convenient to use in a variety of settings.
While non-contact DC voltage detectors are useful tools, they do have some limitations. They are only able to detect DC voltage and may not be able to detect low levels of voltage. Additionally, they may not be effective in detecting voltage through certain materials, so it is important to always double check with a contact tester before assuming an electrical source is safe to work with.