Contact: Dr. Marek T. Wlodarczyk
Phone: 313-769-4094
January 10,1996

ANN ARBOR, MICHIGAN --- A new fiber-optic combustion pressure sensor, model AutoPSI™, will be on display at the Society of Automotive Engineers (SAE) International Congress and Exhibition at Cobo Center, February 26 through February 29, 1996, Booth # 5523.

OPTRAND has designed the AutoPSI system for use in gasoline, natural gas, and diesel engines. Due to its exceptional reliability and low cost, the AutoPSI is particularly suited for engine monitoring and control applications. In a sturdy and miniature package, the AutoPSI opto-electronic components are integrated into an electrical connector for installation in harsh or dirty environments. Capable of operation at housing temperatures up to 350oC, the AutoPSI sensor is offered in 0-100, 0-1000, and 0-3000 psi pressure ranges and has a guaranteed life time of 200 Million pressure cycles.

Available in a sealed gage pressure package, the AutoPSI sensors are offered with 1%, 3%, and 5% accuracy over the frequency range of 0.01 Hz to 15 kHz. Four miniature housing styles ranging from M5 to 3/8"-24 in diameter include a M5 package suitable for installation into Optrand's measurement spark plug. The AutoPSI signal conditioning unit comes in three versions that can accommodate between 1 and 8 sensors. Operating on either 110 VAC or 12-24 DC, the conditioning unit outputs sensor signals in a 0-5 V format, as well as sensor diagnostics voltages.

Specifically intended for high volume, production engine applications, the AutoPSI delivers a low-cost solution without compromising reliability or performance. OPTRAND offers the AutoPSI sensors in custom OEM housings and specific pressure ranges in addition to standard pressure configurations.

OPTRAND, Inc. is an Ann Arbor, Michigan based company involved in research, development, and manufacturing of fiber optic sensors for extreme environments. The company's products address pressure, temperature, air/fuel ratio monitoring and control needs in the combustion engines, electrical utility, and jet engine industries.