EAV and bioresonance terminology

The EAV indicator drop

In electroacupuncture according to Dr. Voll (EAV), the so-called “normal value” is  around 50 (range 45 to 60). Other readings are high values, low values, and indicator drops. The indicator drop is one of the most important measurement characteristics. It is quite possible that:

  • the indicator initially drops relatively quickly
  • lingers for a moment and
  • then continues to drop at a much slower speed. Often it goes down to zero (= natural electrochemical depolarization).

As well as dropping down to 0 at constant slow speed, the indicator of the EAV device may also drop down to a certain value and then stop for two or three seconds before heading back toward 0 again.

The reason for the EAV indicator drop seems to be that conditions are different at the measurement point. It is like a so-called depletion layer with a lower ion count occurring in the area of the measuring point and around the tip of the probe. During a measurement lasting a few seconds, this depletion layer gets wider and wider. The effect could also be described as a kind of barrier layer. This barrier now reduces the current flow and, vice versa, the electrical resistance grows continuously. As a result, the indicator may finally drop to zero.

EAV is measured with a low DC voltage. Electrochemically this always leads to what is called depolarization. This depolarization is shown by the “indicator drop” and it will always appear if you hold the stylus long enough at the point of measurement.

The depolarization, visible by the movement of the indicator on the EAV instrument, typically occurs after about 3 seconds or later. Therefore, if a measured value is stable for 2 to 3 seconds before only then starting to slowly drop, it can be viewed as a stable EAV value. A true indicator drop in electroacupuncture according to Dr. Voll always appears immediately.

Therefore: A single EAV measurement lasts about 3 seconds if no indicator drop occurs.

The measured values are usually written down. This slows down the work. Computer software such as the software for the biocheck Pro can assist in recording the measured values. With this software, the PC monitors the measurement process and indicates the end of the measurement. Using this tool often speeds up the measurement considerably—and nothing needs to be written down because it is all recorded in the software.