| 摘要 |
PURPOSE:To measure separately and continuously the time of measuring two or more objects by providing a memory of a count number and push-button switches for resetting a counter, restarting the count and stopping the count. CONSTITUTION:When a start switch 3 is depressed, a clock 4 operates, and a pulse is integrated by a counter 5. When a switch 1 is depressed, the output of a one shot 10 becomes an L, an AND circuit 15 provides no output, and a time count is stopped, and on the other hand, an AND circuit 16 provides an output, a measuring time is shifted to a memory 6 from a counter 5 in accordance with the memory command from a preset counter 9, and the counter 5 is reset by a resetting circuit l1. After C1R1 seconds of the switch 1, the output of the one shot 10 becomes an H, and the count of a measuring object is started again. When a switch 2 is depressed, Q of a one shot 11 becomes the L, and the time count of the counter 5 is stopped. In this way, the time of measuring objects of two or more is measured separately and continuously in a simple way, and it can be halted temporarily. |
