What Is Induction Balance On A MD.

[candycane]

n/t

 

[UK Brian]

Induction Balance I.B. is a detector principle like B.F.O. (Beat Frequency), P.I. (pulse) or S.P.D.(motion).

They normally have two, sometimes three coils, stacked one above the other in the search head that are aligned so that the transmit and receive coils are balanced to each other.
When the detector head passes over metal the electrical balance is disturbed and the difference is amplified into a signal that is passed to the detectors headphones/meter or speaker.

The pinpointing is better than most machines as the coil has a sensitive spot much smaller than the size of the coil itself ie a ten inch coil might only have a five or six inch hot spot. So easy to pinpoint but much more overlapping of sweeps needed.

 

[Monte]

[size=large]B.F.O. (Beat Frequency Oscillation) models were popular.

It implies that you are INDUCING or TRANSMITTING and electromagnetic field about a coil (wire windings) and the signal is BALANCED using the RECEIVE coil and circuitry. This is a short, simple explanation. I/B and T/R operating principles are the same, and the T/R (Transmit/Receive) terminology became more popular. A good example of this is those very early Compass Yukon I/B detectors that were later renamed the Yukon T/R models.

Monte[/size]