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If the bubbles are below the threshold it is displayed to the user as microbubble activity. When a bubble equal to or greater than the threshold is detected an audio and visual alarm is generated and the arterial pump is stopped, this effectively terminates the cardiopulmonary bypass. The operator must identify and remove the bubble before ...
An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.
In an ionisation type smoke detector, ambient air is allowed to freely enter the ionization chamber. The chamber contains a small amount of americium-241, which is an emitter of alpha particles which produce a constant ion current. If smoke enters the detector, it disrupts this current because ions strike smoke particles and are neutralized ...
The AN/MPQ-64 Sentinel is an X-band electronically steered pulse-Doppler 3D radar system used to alert and cue Short Range Air Defense (SHORAD) weapons to the locations of hostile targets approaching their front line forces. It is currently produced by Raytheon Missiles & Defense.
A sample of air is collected from a target volume, which may be the interior truck, pallet, box, or other container, using a vacuum aspiration system. The device that collects this sample is typically known as a "sampler". In portable instruments, the collected air sample is directly injected into the detector.
Fermilab's disused 15-foot (4.57 m) bubble chamber The first tracks observed in John Wood's 1.5-inch (3.8 cm) liquid hydrogen bubble chamber, in 1954.. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it.
Bubble Mouse. Shoot bubbles to save the city from mischievous cats! Unlock 98 puzzles and 6 locations in this free addictive match 3 bubble saga, which includes power-ups, bubble ring mini-games ...
They use fans to suck in the air, filter it, and either analyze it automatically there and then or collect and store it for later analysis in a laboratory. Active sensors use either physical or chemical methods. [8] Physical methods measure an air sample without changing it, for example, by seeing how much of a certain wavelength of light it ...