temperature transmitter
51Fiber optic sensor — A fiber optic sensor is a sensor that uses optical fiber either as the sensing element ( intrinsic sensors ), or as a means of relaying signals from a remote sensor to the electronics that process the signals ( extrinsic sensors ). Fibers have… …
52Microwave burn — This article is about injury from direct microwave exposure. For other microwave oven related injuries, see Hazard section of Microwave oven. Microwave burns are burn injuries caused by thermal effects of microwave radiation absorbed in a living… …
53Vanguard 1 — Infobox Spacecraft Name = Vanguard 1 Organization = United States Navy Major Contractors = United States Naval Research Laboratory (NRL) Mission Type = Earth science Satellite Of = Earth Launch = March 17, 1958 at 12:15:41 UTC Launch Vehicle =… …
54Antenna (radio) — Whip antenna on car …
55Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …
56STS-103 — Infobox Space mission mission name = STS 103 insignia = Sts 103 patch.png shuttle = Discovery launch pad = 39 A launch = December 19, 1999 7:50:00.069 p.m. EST landing = December 27, 1999 7:01:34 p.m. EST, KSC, Runway 33 duration = 7 days, 23… …
57Non-line-of-sight propagation — Non line of sight (NLOS) or near line of sight is a term used to describe radio transmission across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to… …
58surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …
59Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …
60Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I …
