drift meter
1Drift meter — This article is about the aircraft instrument for measuring wind speeds. For the World War I bombsight, see Drift Sight. A drift meter, also drift indicator and drift sight, is an optical device used to improve dead reckoning for aircraft… …
2drift meter — noun see drift indicator * * * drift meter, an instrument for measuring the drift of aircraft; drift indicator …
3Ion drift meter — An ion drift meter is a device used to measure the velocity of individual ions in the area of a spacecraft. This information can then be used to calculate the ion drift in the space surrounding the instrument as well as the strength of any… …
4drift indicator — noun or drift meter or drift sight : a flight instrument used for measuring the angle of drift of an aircraft and equipped with a hairline or sight wire that may be rotated until objects on the ground appear to travel parallel with it so that… …
5Drift Sight — This article is about the World War I bombsight. For the aircraft instrument for measuring wind speeds, see drift meter. A Mk. I Drift Sight mounted on the side of an Airco DH.4. The lever just in front of the bomb aimer s fingertips sets the… …
6drift indicator — An instrument that looks vertically at the surface to provide an indication of drift angle. It consists essentially of a sight tube with a hairline that is rotated until objects on the ground travel parallel to it. This direction is compared with …
7drift indicator — Aeron. an instrument that indicates the amount of drift of an aircraft. Also called drift meter, drift sight. [1915 20] * * * …
8Rorke’s Drift — Rorke’s Drift …
9Electricity meter — Typical North American domestic analog electricity meter …
10Optical power meter — in use An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually… …
