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    • 2. 发明授权
    • Microwave apparatus and method of operation to determine position and/or
speed of a movable body or discontinuity or change in a material
    • 微波设备和操作方法来确定可移动体的位置和/或速度或材料的不连续性或变化
    • US4659982A
    • 1987-04-21
    • US741604
    • 1985-06-05
    • Jean-Claude Van de VeldeYves LeroyAhmed Mamouni
    • Jean-Claude Van de VeldeYves LeroyAhmed Mamouni
    • G01P3/80G01S11/02G01S13/60G01R23/16
    • G01S11/02G01P3/803G01P3/806G01S13/605
    • This method of constructing microwave systems and processing the signal by correlation is applicable notably to tachometric, telemetric, directional and tracking control systems, to the detection of heterogeneousness and discontinuity in materials by using sensors of the direct-contact or contactless type. The method, based on microwave radiation and utilizing microwave receiving aerials and at least one correlator, comprises the steps of emitting through a radiating aerial a single microwave radiation from a microwave source having predetermined characteristics; receiving the transmitted microwave by means of receiving aerials disposed at different locations; directing the signal thus received towards one or a plurality of correlators, and analyzing the frequency spectrum of the output signal of the correlator or correlators by using Fourier's transformed curve circuits or any other means capable of extracting the fundamental of the output signal or measuring the time elapsing between two passages through zero of the output signal.
    • 这种构建微波系统和通过相关处理信号的方法特别适用于测速,遥测,定向和跟踪控制系统,通过使用直接接触或非接触式传感器检测材料的异质性和不连续性。 该方法基于微波辐射和利用微波接收天线和至少一个相关器,包括以下步骤:通过辐射天线从具有预定特性的微波源发射单个微波辐射; 通过接收设置在不同位置的天线接收所发送的微波; 将如此接收的信号引导到一个或多个相关器,并且通过使用傅里叶变换曲线电路或能够提取输出信号的基准或测量时间的任何其它装置来分析相关器或相关器的输出信号的频谱 通过输出信号的零的两段通过。
    • 3. 发明授权
    • Method and apparatus for measuring the temperature of a body in
microwaves
    • 用于测量微波身体温度的方法和装置
    • US4583869A
    • 1986-04-22
    • US374649
    • 1982-05-04
    • Maurice ChiveEugene ConstantYves LeroyAhmed MamouniMichele RobillardJean-Claude Van de Velde
    • Maurice ChiveEugene ConstantYves LeroyAhmed MamouniMichele RobillardJean-Claude Van de Velde
    • G01K11/00G01K11/22G01K1/00A61N1/40G01J5/52
    • G01K11/006G01K11/22
    • To measure the temperature of a sub-surface volume of a body, for example, living tissue, in microwaves, at least two probes are placed on or near the surface of the body to pick up thermal noise in the microwave range. The two probes are positioned so that the volumes of the body from which the respective probes receive thermal noise signals overlap to provide a common volume from which both of the probes receive thermal noise signals. The signals received by the probes are processed so as to be amplified and to accentuate the signals emitted by the common volume relative to the signals omitted by the remainder of the volumes from which the probes receive thermal noise signals. In one form of apparatus, the two probes are connected in parallel to a correlator the output of which is connected to an amplifier-receiver. In another form of apparatus the probes are connected to an amplifier-receiver, one being connected through a phase shifter. In still another form of apparatus, the two probes are connected through a summing device to a square-law detector, one of the probes being connected through a cyclical phase shifter which is synchronized with the square wave detector.
    • 为了测量身体的基体表面体积的温度,例如活体组织,在微波中,至少两个探针放置在身体表面上或附近,以吸收微波范围内的热噪声。 这两个探针被定位成使得相应探头接收热噪声信号的体的体积重叠,以提供两个探头接收热噪声信号的公共体积。 由探头接收的信号被处理以被放大,并且强调由共同体积发射的信号相对于探头从其接收热噪声信号的剩余体积省略的信号。 在一种形式的装置中,两个探头并联连接到相关器,其相关器的输出端连接到放大器 - 接收器。 在另一种形式的装置中,探针连接到放大器 - 接收器,一个通过移相器连接。 在另一种形式的装置中,两个探针通过求和装置连接到平方律检测器,其中一个探针通过与方波检测器同步的循环移相器连接。
    • 4. 发明授权
    • Method and apparatus for measuring microwave noise
    • 测量微波噪声的方法和装置
    • US4677988A
    • 1987-07-07
    • US714700
    • 1985-03-21
    • Eugene ConstantYves LeroyJean-Claude Van De Velde
    • Eugene ConstantYves LeroyJean-Claude Van De Velde
    • G01K11/00G01R21/04A61B5/05A61N5/02
    • G01K11/006G01R21/04
    • The invention relates to an impedance adaptation control process in low noise reception chains and a miniature microwave thermometer of application of the said process. The process is used mainly in order to measure internal temperature by microwave thermography. The thermal radiation is picked up by means of an aerial (1) which provides a signal (2). This signal (2) is sent alternatively with a signal (5) coming from a standard source to a hyperfrequency amplifier (3) in order to compare the said signals (2,5) and to adjust the source (4) in consequence. According to the invention, in parallel, an additional impedance (15) is placed by intermittance in parallel to the input of the amplifier (3). By means of a synchronous detection (18) of the resulting signal (7), the impedance of the standard source (4) is adjusted so as to equal that of the aerial (1). The invention would, in particular, be applied for gauging the instruments for measuring the noise of dipoles and quadripoles such as microwave thermography.
    • 本发明涉及低噪声接收链中的阻抗适应控制过程和应用所述方法的微型微波温度计。 该过程主要用于通过微波热成像测量内部温度。 通过提供信号(2)的天线(1)拾取热辐射。 该信号(2)交替地与来自标准源的信号(5)发送到超频放大器(3),以便比较所述信号(2,5)并因此调整源(4)。 根据本发明,并行地,通过与放大器(3)的输入端并联放置一个附加阻抗(15)。 通过所得到的信号(7)的同步检测(18),调整标准源(4)的阻抗,以便等于天线(1)的阻抗。 本发明特别适用于测量用于测量诸如微波热成像技术的偶极和四极的噪声的仪器。