公开(公告)号：US3860914A

公开(公告)日：1975-01-14

申请号：US32191073

申请日：1973-01-08

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： ZITELLI WILLIAM E ,  MANDEL ALAN F

IPC: G21C17/12 ,  H03K21/40 ,  H03K23/56 ,  G06F1/00

CPC classification number: G21C17/12 ,  H03K21/403 ,  H03K23/56

Abstract: A digital data recorder is described having inherent circuitry characteristics that will re-establish the recorded data state previously established just prior to a power failure upon the return of the source power supply. The retentive characteristics of the recorder are supplied from an arrangement of magnetic memory cores which controllably vary the time constants associated with given portions of the circuitry of a digital counter comprising the major subunit of this invention. In one embodiment the counter is supplied with a zero inhibit to prevent reverse counting past the zero output state, thus preventing a false indication of the recorded data. The circuitry thus described, basically comprising solid state elements, provides a compact, resilient unit with no mechanical moving elements.

Abstract translation: 描述了具有固有电路特性的数字数据记录器，其将在源电源返回时重新建立在电源故障之前先前建立的记录数据状态。 记录器的保持特性由磁性存储器核心的配置提供，磁存储器核心可控制地改变与包括本发明的主要子单元的数字计数器的电路的给定部分相关联的时间常数。 在一个实施例中，计数器被提供零禁止，以防止反向计数超过零输出状态，从而防止记录数据的错误指示。 如此描述的基本上包括固体元件的电路提供了一种紧凑的，没有机械移动元件的弹性单元。

公开(公告)号：US3864631A

公开(公告)日：1975-02-04

申请号：US46133374

申请日：1974-04-16

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： ZITELLI WILLIAM E ,  SZABO ANDRAS I

IPC: G01R15/12 ,  G01R21/133 ,  H03M1/00 ,  G01R15/08 ,  G01R17/06

CPC classification number: G01R21/133 ,  G01R15/125 ,  H03M1/60

Abstract: A multimeter suitable for indicating the ampere-squared hours, the volt-squared hours, and the watt-hours in an electrical circuit. Three separate voltage-to-frequency circuits are connected to shared timing and power supply circuits. Electrical signals corresponding to the voltage and current in the monitored electrical circuit are applied by appropriate connections to the voltage-to-frequency circuits through multiplier circuits. One multiplier circuit squares the current, another multiplier circuit squares the voltage, and still another multiplier circuit provides the product of the current and voltage to yield a power indication. Programmable dividing circuits reduce the number of pulses which are counted and displayed by the multimeter and enable the display of measured parameters in exact engineering units. An output is included for applying a digital signal responsive to the indicated quantities to a recorder or computer.

Abstract translation: 万用表适用于表示电路中的安培小时数，电压平方小时数和瓦特小时数。 三个单独的电压 - 电压电路连接到共享定时和电源电路。 与被监控电路中的电压和电流相对应的电信号通过乘法电路通过适当的连接到电压 - 频率电路来施加。 一个乘法器电路对电流进行平方，另一个乘法器电路对电压进行平方，而另一个乘法器电路提供电流和电压的乘积以产生功率指示。 可编程分频电路可减少由万用表计数和显示的脉冲数，并以精确的工程单位显示测量参数。 包括用于将响应于所指示的量的数字信号应用于记录器或计算机的输出。