| 摘要 |
FIELD: seismology. ^ SUBSTANCE: device has seismic transducer, circuit for automatic control of amplification, block for extracting and processing pulse signal, and block of classifying. The block of classifying has comparators, the number of which is equal to the number of threshold levels. The outputs of the comparators are connected to the inputs of the analyzer of time intervals. The output of the analyzer is connected to the input of the calculation circuit. ^ EFFECT: simplified design. ^ 1 dwg |
