Dennis Rider


	Engineering Mechanics Corporation of Columbus

Mr. Dennis Rider
Electronic Design Specialist
E-mail: drider@emc-sq.com
614-459-3200 ext 232

Education

Basic and Advanced Electronics, U.S. Air Force Tech School, Denver CO
Digital Data Transmission Systems, U.S. Air Force Tech School, Denver CO
Still Photography, U.S. Air Force Tech School, Denver CO
Sensotometrict and Desotometrict Photography, U.S. Air Force Tech School, Denver CO
Digital Data ID Systems, U.S. Air Force Tech School, Denver CO
Precision Measurement Instrument Lab (PMEL), U.S. Air Force Tech School, Denver CO
HP2100 computer systems Paloto Ca
Motorola 68000 computer Col. Oh

Qualifications

During Mr. Rider’s 34 years experience, he has been able to apply his knowledge of electronic systems (i.e., design and build special electronic interface devices) to solve many complex problems. His experience covers calibrating and maintaining servo test equipment. His extensive experience in all phases of electronics has often provided novel and insightful solutions to his work.

Experience

Short cracks program: Designed and built an electronic measurement system to detect cracks under 0.00001 inches.

Power saver: Designed and built a micro computer controller to interface system to respond to external commands.

Air Force: Developed a control system to produce stress free mirrors from Ni .The unit would grow a .050 mirror in 24 hours and be optically flat and no residual stress. Developed a controller to measure the internal loads on a rotating bearing used in flight guidance systems. The outer race was rotated from 1 RPM to 10,000 rpm and the inner race was held still with no contact devices used. Developed an automatic photography system to capture crack growth while test was running. Samples were load cycled at 20 Hz and photographs were taken at predetermined cycles at the peak load. Designed and built an automated cracks growth system and interfaced to MTS 750,000 test system. The loads were changed during the cycling to maintain a pre desired crack growth rate. This was done with an analog computer in real time.

Gas Research Institute: Setup a remote test control system for large bend tests (500,000) lbs with a 2000 GPM servo control system. The control room was 300 ft from the actual test frame.

Emc2: Set up data collection system for a high pressure pipe testing. The system had thirty strain gages, seven sets of timing wires , and seven pressure transducers. The test lasted 25 X10-3 seconds. Data was collected at high speed then played back and digitized for reduction.

Real Time Monitoring: Mr. Rider selected a pic microcontroller and designed the analog interface and wrote software to test an analog voltage. When the pulse width and amplitude of this voltage met a specific form it generated an error message that was transmitted to an active display to show the event had happened.

Prior Experience

Mr. Rider has continued his education by taking classes on Microprocessor Control Systems and Real Time Data Acquisition Systems. Mr. Rider developed an external Servo Control System for running variable load spectrums and received a patent on the control generator. He also built the first portable electronic thermometer. Mr. Rider has taught part time at the Central Ohio Technical College (COTC) and Columbus State University, specifically in the fields of Computers and Basic Electronics, as well as Control Systems and Program Logic Controllers.