Microsensor systems, inc. will investigate the use of surface acoustic wave (saw) technology for the detection of hazardous chemical vapors in a shipboard environment. the approach will utilize an array of solid-state saw oscillators that have been coated with sorbents that are specific for the… More

This project investigates the use of very small, sensitive surface acoustic wave (saw) microsensors as highly localized, rapidly responding, in-situ chemical vapor sensors capable of operation at high temperatures and pressures. saw microelectronic devices currently under development are as small as… More

It is planned to develop a miniaturized surface acoustic wave (saw) vapor detection system as a personal monitor for toxic organic vapors. the saw sensors are very promising asthey can be made very sensitive to essentially any toxic organic compound with at least modest vapor pressure. they can… More

A method will be investigated for the detection of freon vapors in the shipboard environment. the method utilizes a solid-state, surface acoustic wave (saw) oscillator that has been coated with a sorbent for halocarbon vapors. the objective of the study is to optimize the sensor's chemically… More

A chemical vapor monitoring system, incorporating state-of-the-art chemical microsensor and microcomputer technologies, will be designed and optimized for the automatic, continuous, long term, low level monitoring (below 0.01 mg/m3) of chemical agents. the initial demonstration unit will be… More

It is proposed to develop a small, pocket size personal monitor for glutaraldehyde based on the use of a Surface Acoustic Wave (SAW) chemical microsensor as the detector. SAW microsensors are attractive for this application as they are very sensitive to toxic chemicals of modest to low vapor… More

Present day fire detectors normally employ a single sensor, such as an optical density or ionization detector, that has well known limitations. alarm decisions are thus based on a single measurement that is often inaccurate, and insensitive. we propose to use an array of very small and inexpensive… More

Solid-state microsensors are very small, rugged, low cost, devices that can be highly sensitive to their chemical environment. Due to their unique capabilities, they have considerable potential as in- place sensors for engine condition monitoring, especially as real-time monitors of lubricants,… More

The collection of sufficient quantities of truly representative ambient samples (e.g., air, water) for analysis is a serious problem with any mobile air sampling and monitoring system. There are several ways this problem can be addressed. The approach proposed in tihs SBIR is twofold. First, a… More

Many of the solid-state chemical microsensors, including surface acoustic wave (SAW) devices and the organic or inorganic semiconductors, are ideally suited as sensors for on-chip chemical analysis systems as they are inherently very small, low power and readily manufactured by photolithographic… More

This proposal describes the development of passive surface acoustic wave (SAW) sensors and multi-sensor systems for NASA application to remote wireless sensing of temperature and pressure distributions in space vehicles and demanding environments. SAW devices are a mature technology used in numerous… More

This proposal describes the continued development of passive, orthogonal frequency coded (OFC) surface acoustic wave (SAW) sensors and multi-sensor systems, an enabling technology for remote wireless sensing of temperature, pressure, and a range of other measurands, for application to space… More