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    • 1. 发明申请
    • APPLICATION SPECIFIC INTEGRATED CIRCUITRY FOR CONTROLLING ANALYSIS OF A FLUID
    • 用于控制流体分析的特殊集成电路
    • WO2004086020A3
    • 2005-03-24
    • PCT/US2004008555
    • 2004-03-19
    • SYMYX TECHNOLOGIES INCKOLOSOV OLEG VGAMMER VLADIMIRMATSIEV LEONIDSPITOVSY MIKHAIL B
    • KOLOSOV OLEG VGAMMER VLADIMIRMATSIEV LEONIDSPITOVSY MIKHAIL B
    • G01N9/00G01N27/00G01N33/28
    • G01N33/28G01N2291/0427
    • A circuit for determining characteristics of a fluid under-test is provided. The circuit includes analog-to-digital processing circuitry for interfacing with a sensor and host electronics. The analog-to-digital processing circuitry includes a frequency generator for providing stimulus to the sensor and receiving a response signal from the sensor. Conditioning circuitry for reducing analog signal offsets in the response signal and signal detection circuitry for identifying amplitude data of the response signal are provided. Further provided is analog-to-digital conversion circuitry for converting the detected amplitude data into digital form. Memory for holding calibration data and approximated fluid characteristics of the fluid under-test is included in the circuitry. The digital form of the response signal is processed in conjunction with the calibration data and approximated fluid characteristics to generate fluid characteristics of the actual fluid under-test. In other disclosed embodiments, the fluid characteristics can be obtained directly from a processed signal, which is differentially processed through a compensation device that is actively controlled by circuitry. In this alternative embodiment, curve fitting processing is not needed, as the processed signal itself provides the information that identifies the fluid characteristics for the fluid under-test.
    • 提供了一种用于确定待测流体特性的电路。 该电路包括用于与传感器和主机电子设备进行接口的模数转换处理电路。 模数处理电路包括用于向传感器提供刺激并从传感器接收响应信号的频率发生器。 提供了用于减少响应信号中的模拟信号偏移的调节电路和用于识别响应信号的幅度数据的信号检测电路。 还提供了用于将检测到的幅度数据转换成数字形式的模数转换电路。 用于保持校准数据的存储器和被测流体的近似流体特性包括在电路中。 响应信号的数字形式结合校准数据和近似流体特性进行处理,以产生实际待测液体的流体特性。 在其他公开的实施例中,流体特性可以直接从经由由电路主动控制的补偿装置进行差分处理的处理信号获得。 在该替代实施例中,不需要曲线拟合处理,因为处理的信号本身提供识别流体未被测试的流体特性的信息。
    • 2. 发明申请
    • APPLICATION SPECIFIC INTEGRATED CIRCUITRY FOR CONTROLLING ANALYSIS OF A FLUID
    • 用于控制流体分析的特殊集成电路
    • WO2004086020A2
    • 2004-10-07
    • PCT/US2004/008555
    • 2004-03-19
    • SYMYX TECHNOLOGIES, INC.KOLOSOV,Oleg, V.GAMMER,VladimirMATSIEV, LeonidSPITOVSY, Mikhail,B.
    • KOLOSOV,Oleg, V.GAMMER,VladimirMATSIEV, LeonidSPITOVSY, Mikhail,B.
    • G01N27/00
    • G01N33/28G01N2291/0427
    • A circuit for determining characteristics of a fluid under-test is provided. The circuit includes analog-to-digital processing circuitry for interfacing with a sensor and host electronics. The analog-to-digital processing circuitry includes a frequency generator for providing stimulus to the sensor and receiving a response signal from the sensor. Conditioning circuitry for reducing analog signal offsets in the response signal and signal detection circuitry for identifying amplitude data of the response signal are provided. Further provided is analog-to-digital conversion circuitry for converting the detected amplitude data into digital form. Memory for holding calibration data and approximated fluid characteristics of the fluid under-test is included in the circuitry. The digital form of the response signal is processed in conjunction with the calibration data and approximated fluid characteristics to generate fluid characteristics of the actual fluid under-test. In other disclosed embodiments, the fluid characteristics can be obtained directly from a processed signal, which is differentially processed through a compensation device that is actively controlled by circuitry. In this alternative embodiment, curve fitting processing is not needed, as the processed signal itself provides the information that identifies the fluid characteristics for the fluid under-test.
    • 提供了一种用于确定待测流体特性的电路。 该电路包括用于与传感器和主机电子设备进行接口的模数转换处理电路。 模数处理电路包括用于向传感器提供刺激并从传感器接收响应信号的频率发生器。 提供了用于减少响应信号中的模拟信号偏移的调节电路和用于识别响应信号的幅度数据的信号检测电路。 还提供了用于将检测到的幅度数据转换成数字形式的模数转换电路。 用于保持校准数据的存储器和被测流体的近似流体特性包括在电路中。 响应信号的数字形式结合校准数据和近似流体特性进行处理,以产生实际待测液体的流体特性。 在其他公开的实施例中,流体特性可以直接从经由由电路主动控制的补偿装置进行差分处理的处理信号获得。 在该替代实施例中,不需要曲线拟合处理,因为处理的信号本身提供识别流体未被测试的流体特性的信息。