MAI Telecommunications Products and Services, Custom Scientific and Engineering Instrumentation
The
design and fabrication of high resolution subsurface
geophysical electromagnetic imaging systems involves techniques
comparable to that employed to create the most sophisticated defence
communications and sensor
systems. The design of telecommunications antennas,
amplifiers and filters, and many other telemetry components is
straightforward for the staff of Marschall
Acoustics Instruments. Design tools include: Finite Element
Method (FEM) solvers, Boundary Element Method (BEM) solvers, and
other electromagnetic wave propagation modelling tools; non-linear
circuit simulators; advanced circuit board layout software; and test
equipment capable of generating and measuring arbitrary signals from
DC through VHF. Subject to some constraints, MAI is equipped to
test and measure communications components up to frequencies of
several GHz to beyond the UHF range.
Testing of components and subsystems with various pulses (Gaussian, Lorentz, Sine, Sine Squared, Double Exponential, Nyquist), sweeps (Linear, Log, Gapped, Weighted), modulations (AM, FM, DQPSK), and video signals is routine.
Our staff are familiar with a wide range of analog, digital, and spread spectrum communications signalling methods and devices. This includes block and convolutional codes for error detection and error correction, as well as other methods to ensure genuinely secure communications are received without corruption. Mineral exploration crews and mineral processing operations are expensive. Communications to and from such sites deserve the best, most reliable and secure means commercially practical.
Representation
of selected electromagnetic oscillatory modes in a broadband antenna
element.
Representation of selected electromagnetic modes in a broadband
antenna element.
