NASA 1996 STTR Phase I

Proposal Number:
960053

Project Title:
COMPACT LOW COST HAZARDOUS GAS DETECTION SYSTEM

Small Business Concern:
Makel Engineering, Inc.
910 Florin Road, Suite 208
Sacramento, CA 95831

Research Institution:
Case Western Reserve University
Edison Sensor Technology Center
Bingham Building Cleveland, OH 44106

Principal Investigator/Project Manager:
Dr. Darby B. Makel

Technical Abstract:

Makel Engineering Inc. (MEI) and Case Western Reserve University (CWRU) propose to develop a compact, rugged, lightweight. low cost, hazardous gas detection system (HGDS) incorporating advanced solid-state hydrogen and oxygen sensors. This system is intended to fulfill NASA's need for hydrogen and oxygen sensing on new systems such as Reusable Launch Vehicle (RLV) and at ground test facilities. The HGDS will consist of small, highly integrated sensor heads which combine hydrogen and oxygen sensor elements, signal conditioning electronics, and a digital communications interface. These integrated sensor heads can be formed into a modular, distributed, sensor network with a central processing unit. The proposed HGDS will provide; (1) simultaneous, real-time measurement of hydrogen and oxygen concentrations, (2) advanced, high reliability, solid-state, silicon micromachined Pd alloy and ZrO2 gas sensors, (3) digital communications immune to EMI and RFI, (4) built-in-test (BIT) and health monitoring capability and (5) small, lightweight, easily deployed sensors heads with low power consumption. This system will be a major advance over existing gas sensing technologies enabling NASA to simultaneously improve teststand and vehicle safety and reduce down time and costs associated with isolating hydrogen leaks.

Potential Commercial Applications:
The proposed HGDS is directly applicable to the industrial gas production, transportation, and end users. The system can be used for hydrogen applications using the Pd alloy sensors or for natural gas applications using SnO2 sensors. Rapid commercialization of this system is expected because of the interest already expressed by an established, well know, defense contractor/commercial equipment manufacturer who has worked with MEI and CWRU on previous gas sensor commercialization efforts.

Electronic Mail ID:dmakel@pyrolab.berkeley.edu