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Nonintrusive load monitoring (NILM), nonintrusive appliance load monitoring (NIALM), [1] or energy disaggregation [2] is a process for analyzing changes in the voltage and current going into a house and deducing what appliances are used in the house as well as their individual energy consumption.
A positive displacement meter is a type of flow meter that requires fluid to mechanically displace components in the meter in order for flow measurement. Positive displacement (PD) flow meters measure the volumetric flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes (finite increments or volumes of the fluid).
Because they are used for domestic water measurement, piston meters, also known as rotary piston or semi-positive displacement meters, are the most common flow measurement devices in the UK and are used for almost all meter sizes up to and including 40 mm (1 + 1 ⁄ 2 in). The piston meter operates on the principle of a piston rotating within a ...
Mechanical current meters are mostly based on counting the rotations of a propeller and are thus rotor current meters. A mid-20th-century realization is the Ekman current meter which drops balls into a container to count the number of rotations.
The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...
Thread sizes are denoted by a number or fractional diameter (e.g., 1/4-20 UNC, where "1/4" is the diameter in inches and "20" indicates 20 threads per inch). British Standard Whitworth (BSW) One of the oldest thread standards, primarily used in the UK and former British territories. [12] Defined by the Whitworth profile, which has a 55° thread ...
A magnetic flow meter (mag meter, electromagnetic flow meter) is a transducer that measures fluid flow by the voltage induced across the liquid by its flow through a magnetic field. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux lines.
The FLW 100 and the FLW 200 have been fitted to versions of the Dingo 1 and 2, the upgraded Fuchs 1A8, the GTK Boxer, and Eagle. The FLW 200 was fitted to the Leopard 2 PSO and 2A7 prototypes. While the German version of the Leopard 2A7 is not fitted with an RWS, the Qatari Leopard 2A7+ tanks are fitted with the FLW 200.