发明名称 |
VERFAHREN ZUR ANALOG-DIGITALEN MESSWERTWANDLUNG UND ZUM VERGLEICH MIT WAEHLBAREN DIGITALEN GRENZWERTEN |
摘要 |
The measured value is represented by an analog voltage and is converted into a proportional frequency by a voltage-frequency converter, the frequency pulse being controlled by a logic. They are processed in a two-way counter, transfered to a memory and digitally displayed. The control logic receiver, or generator, a clock pulse for transmission of the last digital measured value to the memory. It also sets the counter and a sign generating flip-flop to a starting value, and controls the voltage-frequency converter operation. A zero test circuit transmits a pulse, when a zero counter state appears at negative starting value, for the counter switching. The measured value conversion is terminated by the control logic after a preset time interval. The digital measured value, accepted by the memory after conversion, is supplied to the digital display via a seven-segment decoder. The stored, digital measured value is compared by two identical comparators with two digital limit values. |
申请公布号 |
DD146354(A1) |
申请公布日期 |
1981.02.04 |
申请号 |
DD19790215909 |
申请日期 |
1979.10.01 |
申请人 |
HEINRICH,WINFRIED,DD;HOSCHKA,SIEGFRIED,DD;RIEGLER,HEINZ,DD |
发明人 |
HEINRICH,WINFRIED,DD;HOSCHKA,SIEGFRIED,DD;RIEGLER,HEINZ,DD |
分类号 |
H03M1/60;H03M1/00;(IPC1-7):G05B1/03 |
主分类号 |
H03M1/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|