Weight measuring method and apparatus thereof
    1.
    发明授权
    Weight measuring method and apparatus thereof 失效
    重量测量方法及其装置

    公开(公告)号:US4212074A

    公开(公告)日:1980-07-08

    申请号:US927938

    申请日:1978-07-25

    CPC分类号: G01G23/3707

    摘要: A weight measuring apparatus comprises a load cell for generating an analog signal corresponding to load applied, and A/D converter for converting an output signal from the load cell into a digital signal, a data processing unit which periodically reads a digital output signal out from the A/D converter to successively write the digital output signal into a first memory area of the memory and produces data corresponding to the weight of load applied to the load cell on the basis of plurality of digital data stored in the first memory area of the memory to write the data into a second memory area of the memory, and a display unit for displaying the data from the data processing unit.The data processing unit compares a plurality of digital data stored in the first memory area. As a result of the comparison, when a given number of or more digital data having the same values are included in the digital data stored in the first memory area, the digital data is produced as output data. On the other hand, when the digital data having the same values fail to reach the given number, the digital data stored in the second memory area and the latest or newest one of the digital data read out from the A/D converter are compared. When the difference between the two compared digital data exceeds a given value, the latest digital data is produced as output data. When, on the other hand, the difference is less than the given value, the data stored in the second memory area is read out and outputted.

    摘要翻译: 一种重量测量装置,包括用于产生对应于所施加的负载的模拟信号的测力传感器,以及用于将来自测力传感器的输出信号转换为数字信号的A / D转换器,周期性地读取数字输出信号的数据处理单元 所述A / D转换器将所述数字输出信号连续地写入所述存储器的第一存储器区域,并且基于存储在所述存储器的所述第一存储器区域中的多个数字数据产生与施加到所述负载单元的负载的权重相对应的数据 用于将数据写入存储器的第二存储区域的存储器,以及用于显示来自数据处理单元的数据的显示单元。 数据处理单元比较存储在第一存储区域中的多个数字数据。 作为比较的结果,当存储在第一存储区域中的数字数据中包括具有相同值的给定数量的数字数据被包括在数字数据中时,产生数字数据作为输出数据。 另一方面,当具有相同值的数字数据不能达到给定数量时,比较存储在第二存储区域中的数字数据和从A / D转换器读出的最新或最新的数字数据。 当两个比较的数字数据之间的差异超过给定值时,产生最新的数字数据作为输出数据。 另一方面,当差值小于给定值时,存储在第二存储区域中的数据被读出并输出。