Abstract: A sample fluid stream passes through a molecular sieve in which moisture is adsorbed in direct proportion to the moisture in the fluid stream. Fast neutrons beamed through the sieve interact with the hydrogen nuclei in the accumulated water. The resulting slow neutrons are detected to produce an output indicative of the percentage of moisture in the fluid stream.

Abstract: A readily portable ultraviolet radiation monitor includes an ultraviolet radiation sensitive cell or transducer arranged in an electrical circuit to drive a digital voltmeter. The ultraviolet sensitive transducer includes a solar blind vacuum photodiode which is exposed to the area of interest through various ultraviolet filters to produce a desired predetermined transducer response characteristic. The monitor is generally T-shaped with the transducer located to view out of one arm of the T, while the meter display is viewed into the other arm. A dependent handle comprises the leg of the T.