The objective of this research was to construct a chemical sensor/instrumentation package that was smaller in weight and volume than conventional instrumentation. This reduction in weight and volume is needed to assist in further reducing the cost of launching payloads into space. To accomplish this, fiber optic sensors, miniaturized spectrometers, and wireless modems were employed. The system was evaluated using iodine as a calibration analyte.Newton, R. L.Marshall Space Flight CenterMINIATURIZATION; FIBER OPTICS; FABRICATION; SPECTROMETERS; CHEMICAL ANALYSIS; CALIBRATING; COST REDUCTION; IODINE; MODEMS; PAYLOADS; VOLUME; WEIGHT (MASS)...