-
公开(公告)号：US5005015A
公开(公告)日：1991-04-02
申请号：US390125
申请日：1989-08-07
摘要： A system and method for detecting the state and thickness of water accumulation on a surface incorporates a plurality of spaced, thin, electrically resonant circuits bonded to the surface and a radio frequency transmitter for exciting the circuits to resonance. A receiver detects the resonant signal from each circuit, determines the resonant frequency and quality factor of the circuit and correlates that information with predetermined data representing changes in resonant frequency and quality factor as a function of liquid water and ice accretion to thereby establish the state and thickness of water overlaying the circuits.
摘要翻译： 一种用于检测表面积聚的状态和厚度的系统和方法包括多个间隔的薄的电连接到该表面的电路，以及射频发射器，用于激励电路进行共振。 接收机检测来自每个电路的谐振信号，确定电路的谐振频率和质量因子，并将该信息与表示谐振频率和质量因数变化的预定数据相关联，作为液态水和积冰的函数，从而建立状态和 覆盖电路的水的厚度。
-
公开(公告)号：US4268779A
公开(公告)日：1981-05-19
申请号：US66286
申请日：1979-08-13
CPC分类号： H05B6/681
摘要： A circuit for controlling power consumption of a load, by controlling the flow of current thereto, utilizes at least one parallel combination of non-linear resistance elements, such as a varistor and the like, and a gateable semiconductor switching device, such as a triac and the like, to substantially reduce or prevent current flow when the semiconductor switching device is gated to an "off" condition and to enable normal current flow to a load when the semiconductor switching device is gated to an "on" condition. Embodiments of the power circuits for control of magnetron power, in a microwave oven, are illustrated.
摘要翻译： 用于通过控制电流的流量来控制负载的功耗的电路利用非线性电阻元件（例如变阻器等）的至少一个并联组合，以及可选择的半导体开关器件，例如三端双向可控硅开关元件 当半导体开关器件选通到“关闭”状态并且当半导体开关器件选通到“导通”状态时能够使负载正常流动，从而大大减少或防止电流流动。 示出了在微波炉中控制磁控管功率的电源电路的实施例。
-
公开(公告)号：US4211911A
公开(公告)日：1980-07-08
申请号：US3866
申请日：1979-01-16
申请人： Rudolph A. Dehn
发明人： Rudolph A. Dehn
CPC分类号： H05B6/707 , G01R1/24 , G01R21/12 , H05B6/6447 , H05B6/688 , H05B6/705 , Y02B40/143
摘要： A module board comprised of a microstrip transmission line, terminating resistors and detectors is mounted over two coupling apertures spaced one quarter guide wavelength along a rectangular waveguide. The microstrip line has a length of five quarters of a wavelength as measured in the secondary line system. Output signals representing forward and reflected power flow in the waveguide are developed by the two detectors. This power sensor is low cost and compact and is suitable for a microwave oven.
摘要翻译： 由微带传输线，终端电阻器和检测器组成的模块板安装在沿着矩形波导间隔四分之一引导波长的两个耦合孔上。 微带线具有在二次线系统中测量的五分之一波长的长度。 表示波导中的正向和反射功率流的输出信号由两个检测器开发。 该功率传感器成本低，结构紧凑，适用于微波炉。
-
4.发明授权Microwave heating apparatus with improved multiple couplers and solid state power source 失效具有改进的多个耦合器和固态电源的微波加热装置
公开(公告)号：US4006338A
公开(公告)日：1977-02-01
申请号：US645511
申请日：1975-12-31
申请人： Rudolph A. Dehn
发明人： Rudolph A. Dehn
CPC分类号： H05B6/705 , H05B6/6426 , H05B6/688 , H05B6/72 , H05B2206/044 , Y02B40/143
摘要： A cut-off tubular housing has flat surfaces for mounting multiple solid state microwave oscillators using microstrip circuitry, each exciting a wire-like resonant coupler wound on a central dielectric support tube for receiving a frankfurter or other material body. The couplers are longitudinally spaced and angularly staggered so that energy coupled to different regions of the body is absorbed by the material to thereby isolate couplers and hence sources even at close spacings. In a rectangular configuration, a non-resonant box has a planar array of serpentine or spiral resonant couplers with adjacent couplers oriented orthogonally to minimize coupling.
摘要翻译： 截止管状壳体具有平坦表面，用于使用微带线路安装多个固态微波振荡器，每个激励用于接收法兰克福弗勒法勒或其他材料体的中央电介质支撑管上的线状谐振耦合器。 耦合器纵向间隔开并成角度地交错，使得耦合到主体的不同区域的能量被材料吸收，从而即使在紧密的间隔处也隔离耦合器并因此分离源。 在矩形构造中，非谐振箱具有蛇形或螺旋谐振耦合器的平面阵列，其相邻耦合器正交定向以最小化耦合。
-
5.发明授权
公开(公告)号：US4296296A
公开(公告)日：1981-10-20
申请号：US066300
申请日：1979-08-13
IPC分类号： H05B6/66
CPC分类号： H05B6/68 , Y02B40/143
摘要： A power supply for controlling the duty-cycle of a microwave oven magnetron and the like power-energizing load, includes a parallel combination of a non-linear resistance element, such as a varistor and the like, and a gateable semiconductor switching device, such as a triac and the like, in series with a power supply voltage-doubler diode, connected in parallel across the magnetron. The flow of current through the magnetron is substantially reduced or prevented when the semiconductor switching device is gated to an "off" condition and is substantially enabled to a normal current flow value when the semiconductor switching device is gated to an "on" condition, typically by high frequency squarewaves provided at the gate electrode.
摘要翻译： 用于控制微波炉磁控管等的占空比的电源等功率供能负载包括非线性电阻元件（例如变阻器等）的并联组合，以及可选择的半导体开关器件 作为三端双向可控硅开关元件等，与电源倍压二极管串联连接在并联的磁控管上。 典型地，当半导体开关器件选通到“关闭”状态时，通过磁控管的电流流动被大大减小或阻止，并且当半导体开关器件选通为“导通” 通过在栅电极处提供的高频矩形波。
-
公开(公告)号：US4237731A
公开(公告)日：1980-12-09
申请号：US28180
申请日：1979-04-09
申请人： Rudolph A. Dehn
发明人： Rudolph A. Dehn
CPC分类号： H05B6/6452 , G01K7/16 , G01K7/22
摘要： A high impedance four wire temperature sensing system is comprised of a thermistor or other sensor and four leads such that a constant current is impressed on the sensor via two leads and the voltage across the sensor is read via the other two. The sensor and leads have microwave surface resistivity much higher than impedance levels in microwave ovens so that negligible microwave energy is coupled to the sensing system. The high resistance leads in a rigid probe to be inserted into the food and in a flexible cable are electrically conductive iron oxide magnetic tape or are deposited conductors.
摘要翻译： 高阻抗四线温度感测系统由热敏电阻或其他传感器和四根引线组成，使得恒定电流通过两根引线施加在传感器上，传感器两端的电压通过另外两根读出。 传感器和引线的微波表面电阻率远高于微波炉中的阻抗水平，因此可忽略的微波能量耦合到传感系统。 高电阻引入刚性探头插入食物，柔性电缆中是导电氧化铁磁带或沉积导体。
-
公开(公告)号：US4320274A
公开(公告)日：1982-03-16
申请号：US111550
申请日：1980-01-14
申请人： Rudolph A. Dehn
发明人： Rudolph A. Dehn
IPC分类号： H05B6/64
CPC分类号： H05B6/6494 , Y10S99/14
摘要： A continuous conductor pattern applied to a dielectric cooking utensil improves the distribution of microwave energy to the bottom surface of food being cooked. The energy is coupled from the electromagnetic field within the oven cavity by metal strip pickup probes on the hand grips or side walls which are part of the embedded metal layer. The conductor pattern on the bottom wall couples energy from the pickup probes to the central region of the utensil.
摘要翻译： 施加到介电烹饪器具的连续导体图案改善了微波能量分布到烹饪食物的底面。 能量通过作为嵌入金属层的一部分的手柄或侧壁上的金属条拾取探头从炉腔内的电磁场耦合。 底壁上的导体图案将来自拾取探头的能量耦合到器具的中心区域。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.015 秒)
