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    • 8. 发明授权
    • Current squaring circuit
    • 电流平方电路
    • US4081696A
    • 1978-03-28
    • US740724
    • 1976-11-10
    • Minoru OdaShinzi Badono
    • Minoru OdaShinzi Badono
    • G01R19/02G01D3/02G01R15/00G01R19/10G06G7/20H03K17/00
    • G06G7/20
    • This squaring circuit has an input connected to the collector of a PNP transistor which has its emitter connected to the emitter of an NPN transistor. This NPN transistor has the collecotor maintained at a predetermined voltage and the base connected to the base of another NPN transistor. The latter NPN transistor has the collector connected to both a source of constant current and its base, and has the emitter maintained at a predetermined voltage and connected to the emitter of another PNP transistor which has its collector connected to an output of the circuit and its base connected to the base and the collector of the first mentioned PNP transistor which has its collector connected to the input. Both PNP transistors have approximately the same characteristics as both NPN transistors.
    • 该平方电路具有连接到PNP晶体管的集电极的输入端,其PNP晶体管的发射极连接到NPN晶体管的发射极。 该NPN晶体管具有保持在预定电压的绞合器,并且基极连接到另一个NPN晶体管的基极。 后一个NPN晶体管的集电极连接到恒定电流源及其基极,并且其发射极保持在预定电压并连接到另一个PNP晶体管的发射极,该PNP晶体管的集电极连接到电路的输出端, 基极连接到第一个提到的PNP晶体管的基极和集电极,其集电极连接到输入端。 两个PNP晶体管具有与两个NPN晶体管大致相同的特性。
    • 9. 发明授权
    • Fluorescent X-ray sulfur analyzer
    • 荧光X射线硫分析仪
    • US4037099A
    • 1977-07-19
    • US631702
    • 1975-11-13
    • Minoru OdaShinji Badono
    • Minoru OdaShinji Badono
    • G01N23/223G01N23/00
    • G01N23/223G01N2223/076
    • A fluorescent X-ray sulfur analyzer is disclosed and includes a radiation source for irradiating a sample with X-rays or .gamma.-rays, a radiation detector for detecting the radiation generated from the sample irradiated by the X-rays or .gamma.-rays and a first analyzer for selecting only fluorescent X-ray pulses from the output of the detector. The analyzer further includes a first pulse rate measuring device for measuring the pulse rate of the pulses selected by the first analyzer, a second analyzer for selecting only pulses of compton scattered rays from the output of the detector and a second pulse rate measuring device for measuring the pulse rate of the pulses selected by the second analyzer. An operational circuit is provided for operating the outputs of the first and second pulse rate measuring devices and is calibrated to compensate for the error caused by the variation of the carbon-hydrogen ratio to realize an accurate weight content of the sulfur in the sample.
    • 公开了一种荧光X射线硫分析仪,其包括用X射线或γ射线照射样品的辐射源,用于检测由X射线或γ射线照射的样品产生的辐射的辐射检测器和 用于从检测器的输出中仅选择荧光X射线脉冲的第一分析仪。 该分析器还包括:第一脉冲率测量装置,用于测量由第一分析仪选择的脉冲的脉搏率;第二分析器,用于仅选择来自检测器的输出的康普顿散射光的脉冲;以及第二脉冲速率测量装置, 由第二分析仪选择的脉冲的脉搏率。 提供了用于操作第一和第二脉冲率测量装置的输出的操作电路,并且被校准以补偿由碳氢比的变化引起的误差,以实现样品中硫的精确重量含量。