Sasha Ring May
Help You Avoid Painful Zaps
by: Jennifer Hazen
The ESD Journal was sent an advanced
sample of a product called the Sasha Ring. The maker of this ring
told us the following:
".....Many people are also
sensitive to the effects of static electricity. The largest group
would probably be office workers, subject to dry-heated, carpeted
with photocopiers and behind computer screens. While the ESD industry
is focused on the damaging effects of static discharge towards equipment
or component damage, it seems to overlook the human aspect. Some
noted effects on individuals are fatigue, headaches, and/or nausea.
...the Sasha Ring was developed
by its inventor to help relieve his own migraine
symptoms he would suffer while working in his lab.
The ring is worn as any other piece
of jewelry, and works by conducting the static charge to the ring
body, be it platinum, gold or silver. A passive circuit (no batteries)
inside the ring passes and holds the charge to the face of the ring,
which is insulated from the body by a gemstone or ebonite. Excessive
charges built up in the ring throughout the day may be dissipated
occasionally by touching the ring face to any metal surface.
A simple test of the ring’s effectiveness
is to drag your feet across a carpeted area known to give you a
static shock. When you reach out and touch a doorknob...ZAP! Repeat
the same procedure while wearing the Sasha Ring. You’ll be amazed
when you feel the difference. (You will feel absolutely nothing
if you discharge the face of the ring first!)"
The manufacturer ( Dartz Industries)
states that the ring will reduce the level of a static discharge
from a person to below the painful level. The graph above is from
We tested the ring to determine if the ring performed as advertised.
We tested the ring on discharges to door knobs and car doors. These
are the typical problem spots for painful sparks in dry weather.
it did reduce the level of pain in a discharge. We found that the
levels of pain were imperceptible at levels up to 20,000 volts on
the technician. At levels above 50,000 volts on the technician,
the level of pain was perceivable but significantly reduced from
the original discharge capabilities.
Our technicians made some measurements
on the ring and found the ring body is separated from the top by
a resistance of 1.5 Meg Ohms. We tested for diode directionality
and found none. The resistance from the top to the ring and from
the ring to the top was the same. This means the ring provides a
dampening to any electrostatic discharge. This would make the reduction
of pain in these discharges understandable. The ring provides an
attractive way to dampen electrostatic zaps.
Many people use their keys or other
metal objects to divert the point of discharge when approaching
a door knob or getting out of a car. The Sasha Ring allows
another method for reducing the pain in these discharges.
We have printed another method for
reducing electrostatic discharge pain before:
Static Brush Eliminates Shocking from Your Car
The theory about fatigue and other
physical attributes can not be tested by our labs so we remain silent
on these issues.