Abstract
It is noted that first-generation extrinsic sensors were mixtures of optical and mechanical components with limited sensitivity and reliability. More advanced intrinsic sensors, both intensity modulated and phase modulated, sense disturbances directly and have excellent sensitivity. A wide range of indirect phase sensors which permits sensing of most common industrial physical measurands has been developed in recent years. Porous glass fiber research efforts show the potential for developing fibers capable of making photometric, spectrometric, and perhaps chromatographic measurements on gaseous and liquid substances. Infrared-fiber development has allowed the emergence of a variety of infrared sensors. These sensors have the potential capability of performing remote, localized FTIR (Fourier transform infrared) measurements, thus substantially expanding capabilities to qualitatively identify organic and inorganic compounds in remote-sensing environments. Bragg grating and double-core fiber sensors are discussed in terms of their ability to provide active optical effects and increase the sensitivity of certain measurements.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 60-63 |
| Number of pages | 4 |
| Journal | Proceedings - Electronic Components and Technology Conference |
| Volume | 1 |
| State | Published - 1990 |
| Event | 1990 Proceedings of the 40th Electronic Components and Technology Conference - Las Vegas, NV, USA Duration: May 20 1990 → May 23 1990 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering