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A Sampling of Our Experience
From concept to
prototype!
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Aerospace
Data Acquisition
Project required the design of a multi-channel analog
system with signal conditioning to accept non-standard Pulse
Code Modulation (PCM) signals. Input protection and
electrical isolation was necessary because of long cable
lengths (200ft) and an electrically noisy environment.
Distorted NRZ and Bi-Phase (Manchester encoded) signals were
detected, digitized and transmitted for further processing.
During the prototype phase, some of the requirements had
changed and we continued working with our customer to meet
the new requirements and complete the job on time.
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Ultrasonic
Study of Liquids
Project involved the application of ultrasonic waves for
characterization of liquids. To meet the requirements,
our existing frequency response analyzer hardware and
software had to be customized to accept ultrasonic
transducers and external temperature sensing as well as some
advanced signal processing capabilities. We delivered
the system ahead of schedule and our customer was able to
move forward with testing.
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Light
Processing and Control
Project required the design of a reliable, low cost
optical transmitter/receiver. An optical feedback
system was required to precisely control the transmitter
output light power. The feedback control system was
designed, and its stability was verified with the Circuit
Sleuth frequency response analyzer in only a couple of days.
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Custom Test
and Simulation
Project required the design of a
test set for a motor control amplifier. This involved
working with the customer's engineering team and
participating in design reviews to insure that all hardware
and software requirements for the test set were met.
The design includes an ARM7 microprocessor with a UART
interface, Ethernet communication hardware and the use of
Direct Digital Synthesis (DDS) to simulate a linear encoder.
The mixed signal nature of the system required careful
attention to PCB component layout, ground management, and
isolation of analog and digital signals. Additionally,
the high-speed Ethernet circuitry required the integration
of shielding into the PCB design. The complete system
was integrated into a custom built enclosure, ready to use.
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Battery
Powered, Portable Medical Device
Project required the design of a battery operated,
compact, data acquisition device. We worked with the
customer's design team to insure that all hardware and
software requirements were met. To maximize battery
life, the device demanded strict management of power,
microprocessor resources and control of the display.
Additionally, PCB techniques for analog and digital signal
management were important for reliable acquisition of
low-level transducer signals. Initial testing of the
prototype system has been successful.
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LASER and
Optics
Numerous projects to include LASER power monitoring,
Diode LASER continuous output power control, LASER based
range finder, Precision lens focusing system (US Patent
awarded) and LASER barcode scanner design. The systems
required the design of low level LASER light detection
circuitry, PIN photodiode and APD signal conditioning, wide
bandwidth trans-impedance amplifiers, diode LASER modeling,
linear optical array signal processing and electromechanical
position feedback control. |
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Customer Testimonials |
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September / 2007
Mike Doss
Chief Operating Officer
Safety Scan Technology, Inc.
"Core
Technology Group did an outstanding job for us. Working with a
new and advanced technology made it difficult for us to find a
manufacturer that could develop the sensitive instrument we
needed for our early data gathering experiments. They were able
to take the detailed information from the inventor and turn it
into a quality prototype that has exceeded early performance
expectations."
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Caldyne®
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October / 2007
Fred Parker
Founder & CEO
Caldyne, Inc.
"Core Technology Group has been working with Caldyne in a
consulting capacity; designing the electronics for a novel,
microprocessor controlled, biomedical instrument. The work
being performed by Core involves both the design of the pc and
the writing of a rather complex program for the microprocessor.
This is a work-in-progress. To date the work accomplished
is most encouraging and has been conducted in a professional
manner."
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