| 摘要 |
<p>The radio activity level measuring device, for isotopes etc. employs a system for determining the true mean rate of input pulses representing the radio-active rays. This system has means receiving the pulses to produce an output signal representing their appearance, supplied to means for establishing the mean relative to the duration of the output signal. The second means provide a mean output signal at a respective level corresponding to a predetermined number and an output signal which indicates that each mean level has reacted a predetermined input pulse level. Third means provide an estimated signal, corresponding to the mean output signal for the highest mean level.</p> |
