| Testing at White Sands involves much
more than firing rockets and missiles. In fact, in the past
few years, one of the missile rangeīs labs has done considerable
testing for the automobile industry.
First of all, the military
is very concerned about the battlefield survivability
of its communications systems, vehicles, computers and
other electronically based systems. If someone were to
explode a nuclear bomb in the upper atmosphere, one of
the byproducts of the blast is a very powerful electromagnetic
pulse covering millions of square miles. This pulse induces
an electrical charge in material which conducts electricity
-- like the components of a computer or battle tank.
If the pulse is strong
enough, the electronic components can be fried or severely
damaged. It is very possible, then, to have such a high
altitude nuclear explosion from which personnel will suffer
no ill effects but they may be out of business because
none of their electronic gear will work.
At White Sands, the Nuclear
Effects Directorate has the capability to simulate and
evaluate the various effects of a nuclear explosion --
including the electromagnetic pulse. For example, when
the Abrams was being developed as the U.S. Armyīs main
battle tank it was put through extensive electromagnetic
testing at the missile range. Its electronic components
were protected by various "hardening" techniques
during development so they would survive very powerful
pulses. The test and evaluation done at White Sands validated
the adequacy of the "hardened" design.
Electromagnetic pulses
and fields exist in our everyday lives, but are much weaker
than the ones found on a battlefield. For instance, kitchen
appliances and televisions produce electromagnetic fields.
Citizen band radios and cellular phones all radiate electromagnetic
pulses when they are transmitting. Even garage door openers
emit weak electromagnetic pulses when they are used.
These devices can interfere
with one another if they get too close to each other.
This is why most airlines do not allow passengers to operate
computers, stereos and other electronic devices when the
plane is landing and taking off. The emissions from these
electronic devices could interfere with sensitive electronic
gear on the airplane.
Automakers were concerned
about common sources of electromagnetic radiation in relationship
to the airbag mechanisms, anti lock brakes, computers,
etc. found in most cars today. For example, they wanted
to make sure that a driverīs day wasnīt ruined because
the carīs airbag went off in his or her face while going
65 mph just because the guy in the next car dialed up
a cellular phone, a trucker used his CB radio or they
drove past a radio station.
So, the missile range has
subjected computer chips and whole cars to all kinds of
electromagnetic radiation in order to prove that such
devices will not fire unintentionally.
When the testing first
started several years ago range officials thought it was
a good story and asked the automobile companies if the
range could invite the news media out. The answer was
a firm, "No."
Not only can we not tell
you much about the testing, at the request of the companies,
but range personnel report the automakers sometimes arrive
with their cars wrapped in brown paper so no one can see
them. Apparently some of the cars are advance models and
manufacturers donīt want anyone to see the new designs
until the appropriate time. Secrecy wears many hats and
is certainly no stranger to business.
At a time of cuts in the
military this commercial testing has been welcome at White
Sands and contributes to maintaining the current workforce. |