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Resume of David A. Johnson, P.E.
David A. Johnson, PE -
DiscoverCircuits.vom
6601 County Road 6410 Lubbock, TX 79416-9717
Phone: 806-368-7747
(as of June 2011) Central Time Zone
email: Dave Johnson |
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| ACCOMPLISHMENTS: |
- Published many articles and circuits in EDN, Electronic Design, Popular Electronics and
Midnight Engineering magazines. Produced an extensive 10MB Internet web site that promotes
consulting engineering services. The site also has a 250+ page e-zine of useful information on
general science, technology, creativity, science experiments, inventing and electro optics.
- Developed several families of touch activated AC and DC electronic switches. Switches were
mostly used to control lights, doors and intercoms in jail cells. Switches had to survive
severe abuse without requiring replacement. Designed and developed a complete jail door
control and monitoring system for Colorado Arapahoe County jail as well as several other jails
in Texas, Florida, New York and California. Sent the line of products through CSA, CKC and UL
safety testing programs. Developed another line of very low power DC capacitance proximity
switches. One switch operates up to 5 years on a single 1.5v button battery.
- Designed, built and successfully demonstrated an optical through the air communications
link with a range of 6 miles. Also demonstrated the feasibility of using clouds as large light
pulse reflectors. In addition, conducted tests on atmospheric attenuation of light pulses
under various weather conditions. Proposed methods for a 40 mile telemetry link using a xenon
flash light source. Proposed uses for nitrogen spark light sources. Uses included optical
radar and long range distance measurements. Proposed a wide area optical information
broadcasting system that would cover an entire metropolitan area with high speed data
services.
- Designed and developed several new consumer products, including cordless telephones,
combustible gas detectors, smoke detectors, backup alarms, anti-carjacking alarms, coin
operated panorama telescopes and motion intrusion alarms. The motion alarm worked on the basis
of monitoring the disturbance of the earth's natural electric field. Wrote patent papers on
the intrusion alarm system.
- Solved a large number of engineering, industrial and medical instrumentation problems for
a variety of companies. Designed and built many custom test stations and fixtures.
Advised many companies on ways to reduce manufacturing cost and improve quality.
Led brainstorm sessions to produce new product ideas and new applications for existing
products.
- Constructed many special test stations and special instruments for explosive devices,
including initiator testers for Ford and GM airbags. Designed and constructed explosive flash
detector/timer monitors. Monitors measured and tested the delay between primer impact and
actual explosion. Designed and constructed a laser welder process controller. Controller used
an optical fiber probe to monitor and count laser light flashes during welding. Designed a
computer controlled test station to test components used on the Trident missile.
- Evaluated a special color NTSC video enhancement circuit for use in consumer TVs for a
large cable company. Designed and built a prototype circuit to test picture improvements.
Wrote detailed report of findings. Also designed and built several custom video signal test
generators that were used in medial camera applications.
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