Ontario – Toronto GTA – Markham
Corporation
www.gemsys.ca
Ontario
Toronto GTA
Markham
Corporation
active
Operating name: GEM Advanced Magnetometers
GEM has had a long and growth-oriented history - starting as
Geophysical Electromagnetic Systems, a consulting partnership,
and incorporating in 1980 as GEM Systems, Inc. Formed by Drs.
Ivan Hrvoic and Jasna Hrvoic, the company continues to be managed
by Dr. I. Hrvoic - who contributes many years of expertise in
geophysical instrumentation and electronic design.
In the late 60's and early 70's, Dr. Hrvoic worked as Senior
Research Engineer with another instrument manufacturer. During
this time, initial research was conducted into the feasibility
and design of a Continuous Reading High Sensitivity Airborne
Overhauser Magnetometer. This work was completed by GEM in 1983
through a research grant, and led to the first of an innovative
series of magnetometer / gradiometer technologies.
Commercial success of the GSM-8 proton precession magnetometer
led to early expansion and creation of the GSM-9, the first
pulsed Overhauser magnetometer and the portable Overhauser
Memory Magnetometer. GSM-10 and 18 magnetometers were also
developed and were received well in the resource exploration
market.
The company has also developed solutions for other fields, such
as UXO, volcanology, earthquake prediction, and engineering and
environmental disciplines. As the company's reputation as a
proven supplier of instrumentation for total field measurement
grew, they branched into other fields including the observatory
field. Today, Overhauser magnetometers have replaced many of the
conventional proton precession installations around the world.
GEM's first airborne project was a vertical helicopter-borne
gradiometer. It was based on a simple, yet effective
self-oscillating Overhauser system. The company also developed
the inexpensive GSM-11 airborne magnetometer that contributed to
the commercial success of several airborne survey companies.
Airborne initiatives continue to be a strong focus, especially
with the commercialization of a new
GEM-developed potassium optically-pumped technology that is
designed to address the limitations of traditional cesium
sensors.
Following expansion in 1987, the company launched the GSM-19.
This memory magnetometer combines Overhauser technology with
proprietary free-radical solutions and firmware that is also able
to accept other geophysical methods such as VLF and multiple
gradiometer channels.
With the success of the GSM-19 Overhauser system, the company has
dedicated significant effort in making this unit one of the most
advanced magnetometer technologies today.
GEM's development work continues today with development and
evolution of the next generation of Potassium Optically Pumped
magnetometers and gradiometers. These systems will provide
increased sensitivity and survey efficiency for both airborne and
ground survey applications.
Country of Ownership: Canada
Year Established: 1980
Exporting: Yes
Primary Industry (NAICS): 334512 - Measuring, Medical and Controlling Devices Manufacturing
Primary Business Activity: Manufacturer / Processor / Producer
Products:
Geophysical instrumentation - magnetometers / gradiometers / vlf, Gsm-19 overhauser magnetometer / gradiometer / vlf, Gsm-19t proton precession magnetometer / gradiometer / vlf, Gsmp -30a airborne magnetometer / gradiometer
Technology:
GEM is the only geophysical instrumentation manufacturer that
focuses solely on the research, development and distribution of
advanced magnetic technologies - leading to many innovations in
the following areas: * GPS integration for accurate ground positioning and reduction
of survey cost
* Sensor technology for high-sensitivity mapping of geologic
structures, lithology and geophysical anomalies
* Signal counting for high signal-to-noise, absolute accuracy and
resolution
* Firmware and software for efficient, effective survey planning,
field work and processing
* Hardware and console design for field worthiness, portability
and low power consumption
* Custom systems for resolution of customer-specific
instrumentation requirements
Particular specialties include the design and development of
Overhauser, Potassium Optically Pumped and Proton Precession
magnetic / gravimetric sensors and technologies.
GEM continues to work in these areas in the knowledge that our
customers benefit significantly via improved survey efficiency,
and higher quality magnetic and gradiometric data.
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