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公开(公告)号：US3673863A
公开(公告)日：1972-07-04
申请号：US3673863D
申请日：1970-02-24
Applicant: GEORGE CTIRAD SPACEK
Inventor： SPACEK GEORGE CTIRAD
Abstract: This invention relates to methods and means of measuring fuel consumption of vehicles propelled by combustion engines, and of stationery combustion engines. This invention relates also to methods and means of generating electrical signal in proportion to the speed of the vehicle, particularly sailboats and sailplanes, whether propelled by an engine or not. In the case of stationery combustion engines, the invention relates to methods and means of generating electrical signal in proportion to the flow of the fuel, and utilizing these electrical signals to give the operator instantaneously information about fuel consumption, preferably in gallons per hour, of the engine. In the case of vehicles propelled by combustion engines, the invention relates to methods and means of generating electrical signals in proportion to the speed of the vehicle, and of utilizing these electrical signals to give the operator of the vehicle information about fuel consumption per unit time, preferably in gallons per hour, to give the operator information about fuel consumption per distance travelled, preferably in miles per gallon, and to give the operator information about speed of the vehicle, preferably in miles per hour.
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公开(公告)号：US3638126A
公开(公告)日：1972-01-25
申请号：US3638126D
申请日：1969-08-21
Applicant: GEORGE CTIRAD SPACEK
Inventor： SPACEK GEORGE CTIRAD
CPC classification number: H03D9/0616
Abstract: This invention relates to a balanced high-frequency converter for mixing of microwave signals over large bandwidth. The essential characteristics of this invention is the placement of a pair of semiconductor diodes at the intersection of a waveguide with one coaxial line in such manner that the broad walls of the waveguide are utilized as the continuation of the outer conductor of the coaxial line. Thus the waveguide does not cause an impedance mismatch for signals propagating on the coaxial line, allowing coupling of wideband signals into the diodes. The resulting beat frequency signal is extracted through the waveguide. An extension of the above principle allows the construction of a doubly balanced frequency converter, in which two pairs of semiconductor diodes are placed across the waveguide and in which one coaxial line couples signals to one pair of diodes and a second coaxial line couples signals to the second pair of diodes. The broad walls of the waveguide are utilized as continuation of the outer conductors of the coaxial lines, thereby eliminating impedance mismatch and allowing efficient frequency conversion over a broad frequency range.
Abstract translation: 本发明涉及用于在大带宽上混合微波信号的平衡式高频转换器。 本发明的基本特征是将一对半导体二极管放置在波导与一个同轴线的交叉点处，使得波导的宽壁被用作同轴线的外导体的延续。 因此，波导不会对在同轴线路上传播的信号造成阻抗失配，从而允许将宽带信号耦合到二极管中。 通过波导提取产生的拍频信号。 上述原理的延伸允许构建双平衡变频器，其中两对半导体二极管跨越波导放置，并且其中一个同轴线将信号耦合到一对二极管，并且第二同轴线将信号耦合到 第二对二极管。 波导的宽壁被用作同轴线的外导体的延续，从而消除阻抗失配并允许在宽频率范围内进行有效的频率转换。
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公开(公告)号：US3584306A
公开(公告)日：1971-06-08
申请号：US3584306D
申请日：1967-09-18
Applicant: GEORGE CTIRAD SPACEK
Inventor： SPACEK GEORGE CTIRAD
CPC classification number: H03D9/0625
Abstract: This invention relates to a balanced high frequency converter for mixing of microwave signals over large bandwidth. The essential characteristics of this invention are the placement of semiconductor diodes at the intersection of a waveguide with two coaxial lines in such manner that the broad walls of the waveguide are utilized as the continuation of the outer conductors of the coaxial lines. Thus the waveguide does not cause an impedance mismatch for input signals propagating on the two coaxial lines, allowing coupling of input signals at any frequencies to the diodes. The resulting beat frequency signal, generated in the semiconductor diodes, is extracted through the waveguide.
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