Abstract: Systems and methods for control and signal processing in variable inductance, resonant circuit monitoring devices are disclosed, including improved techniques for energizing the sensor resonant circuit using excitation signal frequency sweeps, techniques for validating sensor readings and characterizing sensor frequency outputs to measured physical parameters and improved techniques for isolating background electromagnetic noise and distinguishing knows from sensor measurement signals.

Abstract: One variation of a method for slicing a type of whole bread buns includes: retracting a cutting block along a chute into a load position; dispensing a whole bread bun into the chute between the cutting block and a blade extending across the chute; advancing the cutting block along the chute toward the blade; detecting contact between the cutting block and the blade at a contact position; at a first time, advancing the cutting block into a pierce position offset from the contact position toward the blade by a pierce distance less than a common width of the type of whole bread buns; and, at a second time succeeding the first time by a pierce duration, advancing the cutting block from the pierce position into a slice position adjacent the blade to drive the whole bread bun fully through the blade.

Abstract: One variation of a system for buttering and toasting bread buns includes: a butter stage including: a vessel containing liquefied dairy fat and defining a permeable surface, a pressure supply fluidly coupled to the vessel, and a first paddle assembly configured to catch a bun crown dispensed into the butter stage, to compress a sliced face of the bun crown directly against the permeable surface, and to release the bun crown from the butter stage; and a toast stage including a toasting surface arranged vertically below the permeable surface, a heating element arranged behind the toasting surface, and a second paddle assembly arranged vertically below the first paddle assembly and configured to catch the bun crown released from the first paddle assembly, to compress the sliced face of the bun crown directly against the toasting surface, and to release the bun crown from the toasting surface.

Abstract: One variation of a system for packaging a foodstuff includes: a ramp; a bag dispenser adjacent the ramp and dispensing a bag into a load position; a paddle pivotable about a hinge arranged above the ramp, comprising a leading edge opposite the hinge and engaging the ramp, and extensible between a retracted setting and an extended setting, the leading edge of the paddle in contact with the ramp in the retracted setting and inserted into the mouth of the bag in the extended setting; an actuator coupled to the paddle and extending the paddle between the retracted setting and the extended setting; and a conveyor advancing the a foodstuff toward the bag dispenser, foodstuff contacting a bottom surface of the paddle and pivoting the paddle about the hinge to separate an upper layer of the bag from a lower layer.

Abstract: A process for producing high purity silicon characterized by the employment of an electric arc heater into which a silicon halide is injected together with a metal reductant such as an alkali metal or an alkaline-earth metal which are reacted together by projecting them tangentially into a reaction chamber to cause the formation of liquid silicon and a gaseous metal halide salt which are separated in a suitable manner such as centrifugally or by condensation.

Abstract: A process for producing high purity silicon characterized by the employment of an electric arc heater into which a silicon halide is injected together with a metal reductant such as an alkali metal or an alkaline-earth metal which are reacted together by projecting them tangentially into a reaction chamber to cause the formation of liquid silicon and a gaseous metal halide salt which are separated in a suitable manner such as centrifugally or by condensation.