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The C2 Compass is a miniature hand-held battery-operated eight-point compass with digitised voice output and auxiliary color indication.
Applications include novelty gifts, mobility tools for the vision-impaired, jogging accessories, etc.
The RDCM-802 Digital Compass Module
is a miniature low-cost orientation-sensing module for industrial and
scientific applications, toys and experiments.
Based entirely on solid-state magnetoresistive technology (no moving
parts, no fluxgate coils), this is a primary choice digital compass
module where small size, low cost and reliable performance are
important.
The EBCM-802 Evaluation Board
is designed to demonstrate and evaluate the RDCM-802 module.
The unit contains one such module in a convenient arrangement including
a battery holder and orientation indicating LEDs. This low-cost
evaluation board provides an excellent basis for introduction and
experimenting with digital compass modules.
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The compass is the oldest scientific instrument. Invented in China,
it was used for magical purposes as well as for navigation.
The ancient compass pictured here consists of a spoon
made of magnetic lodestone, resting on a bronze plate.
The circular center represents heaven, and the square plate represents
the Earth. The handle of the spoon points south. The plate bears Chinese
characters which denote the eight main compass points and symbols from the
I Ching oracle books which were correlated with directions.
The GEOSENSORY products take contemporary compass technology yet another
step forward with the introduction of the GEOSENSORY range of solid-state miniature
digital compasses. Our unique compass construction uses no moving parts
or bulky fluxgate magnetometer coils. Instead, we rely on precise magnetoresistive
technology to deliver the most reliable, smallest and most power-efficient electronic compasses available.
The Global Positioning System, originally developed for military use, has become a universally indispensable
means of navigation. The system consists of 29 geostationary satellites. Each satellite transmits radio signals which contain
an encoded time stamp. Using the transmitted time stamp, the GPS receiver determines how long it takes for the signal
to travel between the satellites and the receiver. As the speed of electromagnetic waves is known,
the receiver can determine the distance to each satellite. The location of the receiver can then be calculated
by triangulating the known distances between the receiver and several satellites.
Electromagnetic radiation is all around us, with ever-increasing
intensity, an inescapable fact of living in the information age. Some
of this radiation is desired (TV, radio) some of it is not (bugging
devices, electromagnetic interference), and some of it may be a
potentially dangerous by-product of an otherwise useful function.
GEOSENSORY electromagnetic radiation detectors can be used to determine the location of such radiation sources,
or for safety checks and testing of electric appliances. GEOSENSORY detectors are suitable for home use, as well as for professional applications such as EMC pre-testing,
surveillance countermeasures or communication systems installation.
