Hey folks, I’m brand new here and to tinkering with electronics in general. I’m looking into building my own electroscope.
My question is: What’s the difference between a static field and an EMF field? There seem to be detectors for both, so I wanted to know what the difference is, and what the relationship between the two is.
Question by BCM USA
Static Field could be Electrical or Magnetic. Electric Charge as a static Field can be measured using Electrometer
Simple Electrometer – A trivial JFET electrometer isn’t a new idea, there are millions of designs for them out on the Internet, this is just yet another. This one is slightly unique in that it is a bridge configuration that makes it ultra-sensitive, much more so than a gold-leaf electroscope, but less than a vacuum tube or electrometer grade FET device.
Static Magnetic Field is measured using A magnetometer also be called a gaussmeter. Gauss_meter
“Magnetometers are measurement instruments used for two general purposes: to measure the magnetization of a magnetic material like a ferromagnet, or to measure the strength and, in some cases, the direction of the magnetic field at a point in space.”
EMF is the field of a Moving Magnet, an AC field. This Moving Magnet could be simulated by a Sine Wave in a Coil. Use a EMF Meter for this. EMF_meter
See some Instruments that are used here – AlphaLab Gauss Meter and EMF Detectors