会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 22. 发明申请
    • SIGNAL PROCESSING METHOD, SIGNAL PROCESSING APPARATUS, AND CORIOLIS FLOWMETER
    • 信号处理方法,信号处理装置和CORIOLIS流量计
    • US20120059601A1
    • 2012-03-08
    • US12921460
    • 2009-06-10
    • Hirokazu KitamiHideki Shimada
    • Hirokazu KitamiHideki Shimada
    • G06F19/00
    • G01F1/8436G01F1/8431G01F1/8477
    • [Object] To provide a signal processing apparatus which may always perform measurement with constant precision and performs phase measurement with high filtering performance and a small amount of computation even when a temperature of a fluid to be measured changes, air bubbles are mixed into the fluid to be measured, or the fluid to be measured rapidly changes from a gas to a liquid.[Solving Means] In a Coriolis flowmeter in which at least one flow tube or a pair of flow tubes which is included in a measurement flow tube is operated by a driving device using a vibrator to alternately drive the at least one flow tube or the pair of flow tubes, and a phase difference and/or a vibration frequency proportional to a Coriolis force acting on the at least one flow tube or the pair of flow tubes are/is detected by a velocity sensor or an acceleration sensor which is a vibration detection sensor when the at least one flow tube or the pair of flow tubes is vibrated, to thereby obtain a mass flow rate and/or density of a fluid to be measured, the signal processing apparatus includes: a transmitter (90) for transmitting and outputting a modulatable frequency signal; a frequency conversion unit (85) for performing frequency conversion to add (or subtract) an output frequency (FX) of the transmitter (90) to (or from) an input frequency from input signals of the phase difference and/or the vibration frequency proportional to the Coriolis force acting on the pair of flow tubes, which is detected by an electromagnetic pick-off, and controlling the transmitter (90) so that frequency values after the frequency conversion are constant; and a phase difference measurement section (95) for measuring a phase difference between frequency signals converted by and output from the frequency conversion unit (85).[Selected Drawing] FIG. 1
    • 提供一种信号处理装置,其可以始终以恒定的精度执行测量,并且即使当要测量的流体的温度改变时,也可以进行具有高过滤性能和少量计算的相位测量,气泡混入流体 要测量的流体或被测量的流体迅速地从气体变为液体。 [解决方案]在科里奥利流量计中,包括在测量流管中的至少一个流管或一对流管由使用振动器的驱动装置操作以交替驱动至少一个流管或对 的流量管,并且与作用在至少一个流管或一对流管上的科里奥利力成比例的相位差和/或振动频率由速度传感器或作为振动检测的加速度传感器检测 传感器,当所述至少一个流管或所述一对流管振动时,所述信号处理装置包括:发送器(90),用于发送和输出所述待测量流体的质量流量和/ 可调频率信号; 频率转换单元,用于执行频率转换,以将相位差和/或振动频率的输入信号中的(或从)输入频率添加(或减去)发送器(90)的输出频率(FX) 与通过电磁检测器检测到的对流量管上的科里奥利力成比例,并且控制发射器(90)使频率转换之后的频率值恒定; 以及用于测量由变频单元(85)转换并从其输出的频率信号之间的相位差的相位差测量单元(95)。 [所选图] 1
    • 25. 发明申请
    • SIGNAL PROCESSING METHOD, SIGNAL PROCESSING APPARATUS, AND CORIOLIS FLOWMETER
    • 信号处理方法,信号处理装置和CORIOLIS流量计
    • US20110016989A1
    • 2011-01-27
    • US12921456
    • 2009-06-10
    • Hirokazu KitamiHideki Shimada
    • Hirokazu KitamiHideki Shimada
    • G01F1/84
    • G01F1/8477G01F1/8431G01F1/8436
    • [Summary][Object] To provide a signal processing method, a signal processing apparatus, and a Coriolis flowmeter, which may always perform measurement with constant precision and performs phase measurement with high filtering performance and a small amount of computation even when a temperature of a fluid to be measured changes, air bubbles are mixed into the fluid to be measured, or the fluid to be measured rapidly changes from a gas to a liquid.[Solving Means] In a Coriolis flowmeter, a phase difference and/or a vibration frequency proportional to a Coriolis force acting on at least one flow tube or a pair of flow tubes are/is detected, to thereby obtain a mass flow rate and/or density of the fluid to be measured. The Coriolis flowmeter includes A/D converters for converting, into digital signals, analog signals output from velocity sensors or acceleration sensors which are a pair of vibration detection sensors, a pair of quadrature frequency modulators for performing frequency conversion on the digital signals which correspond to the pair of vibration detection sensors, a frequency measurement unit for measuring a frequency based on one digital signal output from the pair of vibration detection sensors, and a transmitter for generating a frequency signal corresponding to θ(1−1/N) of a digital signal of the frequency. A phase difference is obtained based on the signals generated by the quadrature frequency modulators.
    • 发明内容提供一种信号处理方法,信号处理装置和科里奥利流量计,其可以始终以恒定的精度进行测量,并且即使当温度为 要测量的流体变化,将气泡混入待测量的流体中,或者待测量的流体迅速从气体变为液体。 [解决方案]在科里奥利流量计中,检测与作用在至少一个流管或一对流管上的科里奥利力成比例的相位差和/或振动频率,从而获得质量流量和/ 或待测流体的密度。 科里奥利流量计包括A / D转换器,用于将速度传感器或加速度传感器输出的模拟信号转换为数字信号,这些传感器是一对振动检测传感器,一对正交频率调制器用于对数字信号进行频率转换 所述一对振动检测传感器,用于基于从所述一对振动检测传感器输出的一个数字信号来测量频率的频率测量单元和用于产生对应于所述一个振动检测传感器的频率信号的发送器;(1-1 / N) 数字信号的频率。 基于由正交频率调制器产生的信号获得相位差。
    • 26. 发明申请
    • CORIOLIS FLOWMETER
    • CORIOLIS流量计
    • US20100268484A1
    • 2010-10-21
    • US12746874
    • 2009-06-05
    • Hideki Shimada
    • Hideki Shimada
    • G01F1/84
    • G01F1/8477G01F1/8431G01F1/8436
    • A drive device for operating an electromagnetic oscillator includes: an OP amplifier for amplifying an analog input signal from an electromagnetic pick-off; an A/D converter for converting an analog signal output from the OP amplifier into a digital signal; a D/A converter for converting, after digital processing performed by a DSP on the digital signal output from the A/D converter based on phase detection, a digital signal having a processed data amount into an analog signal; and a D/A converter for converting, after the digital processing performed by the DSP on the digital signal output from the D/A converter based on the phase detection, a digital signal having a processed data amount into an analog signal.
    • 用于操作电磁振荡器的驱动装置包括:用于放大来自电磁感应器的模拟输入信号的OP放大器; A / D转换器,用于将从OP放大器输出的模拟信号转换为数字信号; D / A转换器,用于在DSP上对基于相位检测从A / D转换器输出的数字信号进行数字处理之后,将具有处理后的数据量的数字信号转换为模拟信号; 以及D / A转换器,用于在DSP执行基于相位检测从D / A转换器输出的数字信号进行数字处理之后,将具有处理后的数据量的数字信号转换为模拟信号。