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The nozzle and flapper mechanism is a displacement type detector which converts mechanical movement into a pressure signal by covering the opening of a nozzle with a flat plate called the flapper. [1] This restricts fluid flow through the nozzle and generates a pressure signal.
English: Sectional diagram of a nozzle-flapper_servo-valve with Linear Variable Differential Transformer (LVDT). Is=Current to solenoid, P A T B are gates, sig=signal. Is=Current to solenoid, P A T B are gates, sig=signal.
Köhler illumination is a method of specimen illumination used for transmitted and reflected light (trans- and epi-illuminated) optical microscopy.Köhler illumination acts to generate an even illumination of the sample and ensures that an image of the illumination source (for example a halogen lamp filament) is not visible in the resulting image.
The Kohler family of Wisconsin is a family notable for its prominence in business, society, and politics in the U.S. state of Wisconsin during the 19th, 20th and 21st centuries. [ 1 ] [ 2 ] [ 3 ] Its members include two Governors of Wisconsin , and the founder and executives of Kohler Co. , a Wisconsin-based manufacturing and hospitality company.
Tarek Gustave El Moussa was born on August 21, 1981, to a Lebanese Catholic father, whose family migrated to Egypt, and a Belgian mother, whose maiden name is Arnould, [3] in Long Beach, California. [4]
In the case of VHS, a linear control track at the tape's lower edge holds pulses that mark the beginning of every frame of video; these are used to fine-tune the tape speed during playback and to get the rotating heads exactly on their helical tracks rather than having them end up somewhere between two adjacent tracks. However, the exact ...
Jan Koller (Czech pronunciation: [ˈjan ˈkolɛr]; born 30 March 1973) is a Czech former professional footballer who played as a striker.He was noted for his height, strong physique and heading ability.
Alan Robert Kohler AM is an Australian financial journalist, television personality, and former newspaper editor. He is known for presenting the finance segment on the news on ABC Television , and as the founder of The Constant Investor , a former online subscription service for investors.