公开(公告)号：US06738312B1

公开(公告)日：2004-05-18

申请号：US10311170

申请日：2003-04-16

Applicant: Kah Chye Tan ,  Zenton Goh ,  Kwok Chiang Ho

Inventor： Kah Chye Tan ,  Zenton Goh ,  Kwok Chiang Ho

IPC: G01H500

CPC classification number: G01H5/00 ,  Y10S367/902

Abstract: The invention relates to an arrangement for measuring the speed of sound, the arrangement comprising: an electrical pulse generating means (402) for generating an output electrical pulse signal (404), a transmitting transducer (403) for converting said output electrical pulse signal (404) into an output acoustic pulse signal (405), a reflector (407) for reflecting said output acoustic pulse signal (405), thereby producing a reflected acoustic pulse signal (409), a receiving transducer (408) being arranged such as to receive said output acoustic pulse signal (405) transmitted directly from said transmitting transducer and said reflected acoustic pulse signal (409) reflected by said reflector, wherein said receiving transducer converts the received output acoustic pulse signal (405) into a reconstructed output electrical pulse signal (410) and the reflected acoustic pulse signal (409) into a reconstructed reflected electrical pulse signal (411), a speed determination means for determining the speed of sound (412) using the reconstructed output electrical pulse signal (410) and the reconstructed pulse signal (411).

Abstract translation: 本发明涉及一种用于测量声速的装置，该装置包括：用于产生输出电脉冲信号（404）的电脉冲产生装置（402），用于将所述输出电脉冲信号（ 404）输出到输出声脉冲信号（405），用于反射所述输出声脉冲信号（405）的反射器（407），从而产生反射声脉冲信号（409），接收换能器（408） 接收从所述发送换能器直接发送的所述输出声脉冲信号（405）和由所述反射器反射的所述反射声脉冲信号（409），其中所述接收转换器将所接收的输出声脉冲信号（405）转换成重建的输出电脉冲信号 （410）和反射的声脉冲信号（409）转换成重建的反射电脉冲信号（411），速度确定装置，用于确定 g使用重建的输出电脉冲信号（410）和重构脉冲信号（411）的声速（412）。

公开(公告)号：US06724337B1

公开(公告)日：2004-04-20

申请号：US10089649

申请日：2002-07-02

Applicant: Kah Chye Tan

Inventor： Kah Chye Tan

IPC: H03M112

CPC classification number: H03M1/129

Abstract: A method is provided for analog/digital converting of at least one analog low-frequency signal with an analog/digital converter which can detect only an analog signal with a frequency above a predetermined border frequency value, wherein at least one analog low-frequency signal and at least one analog high-frequency signal are provided. An analog intermediate signal is generated from said analog low-frequency signal(s) and said analog high-frequency signal(s) and is input to the analog/digital converter. The analog intermediate signal is converted into a digital intermediate signal, and a digital low-frequency signal corresponding to said analog low-frequency signal is determined from the digital intermediate signal.

Abstract translation: 提供一种用于模拟/数字转换至少一个模拟低频信号的方法，该模拟/数字转换器只能检测具有高于预定边界频率值的频率的模拟信号，其中至少一个模拟低频信号 并提供至少一个模拟高频信号。 从所述模拟低频信号和所述模拟高频信号产生模拟中间信号，并将其输入到模拟/数字转换器。 模拟中间信号被转换为数字中间信号，并且根据数字中间信号确定对应于所述模拟低频信号的数字低频信号。