How to Parabolic reflector?

Space-borne microwave atmospheric sounding instrument,Laser propelled engine

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2 results about "Parabolic reflector" patented technology

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A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave traveling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis.

Space-borne microwave atmospheric sounding instrument

InactiveCN107450074AAvoid output fluctuationsEliminate interference errorsICT adaptationRadio wave reradiation/reflectionMicrowaveMultiplexer

The invention relates to a space-borne microwave atmospheric sounding instrument, which comprises feed sources, calibration bodies, a motor, plane mirrors, parabolic reflectors, a scanning drive control module, multiplexers and receiver units. The motor is controlled by the scanning drive control module to drive the plane mirror to rotate. The plane mirrors reflect received electromagnetic wave signals to the parabolic reflectors in the form of plane waves by scanning the atmosphere and the calibration bodies. The parabolic reflectors realize secondary reflection to enable the plane waves to be reflected to the corresponding feed sources arranged opposite thereto. The multiplexers are used for separating the frequency of the electromagnetic wave signals received by the feed sources respectively. Each receiver unit comprises a plurality of receivers parallel with the output end of the corresponding multiplexer, and is used for receiving the electromagnetic wave signals matched with the frequency thereof. The space-borne microwave atmospheric sounding instrument has the advantages of being high in performance, high in integration, low in weight and low in power consumption.

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Owner:NAT SPACE SCI CENT CAS

Laser propelled engine

ActiveCN102062019BReduce heat resistance requirementsStable jobRocket engine plantsCombustion chamberHeat resistance

The invention relates to a laser propelled engine. The laser propelled engine comprises a plane lens (1), a conical parabolic reflector (2), a convex reflector (3) and a spray pipe (5). The appearance of the laser propelled engine is similar to that of the traditional liquid rocket engine. The size of a combustion chamber can be amplified or reduced in proportion as required, and the size of the plane lens (1) can be adjusted along with adjustment of the size of the combustion chamber, therefore, the requirement on the heat resistance of the material of the plane lens (1) is reduced. The bottom of the conical parabolic reflector (2) is positioned on the top of the spray pipe, can prevent a high-temperature plasma from refluxing to the combustion chamber and has favorable protecting effecton all optical devices. A laser focus point is always arranged nearby the throat part of the spray pipe, and the spray pipe works stably and is free from upstream influence.

Owner:SHENZHEN XUNTIAN SPACE TECH CO LTD

2 results about "Parabolic reflector" patented technology

Space-borne microwave atmospheric sounding instrument

Laser propelled engine

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