| 摘要 |
PURPOSE:To attain to shorten a measuring time by arbitrarily contacting a time base on recording paper while enabling the dot display of input, by mounting an analogue/digital converter, an input data memory means, a dot data fabricating means, a time base contraction indicating means and a graphic dot printer. CONSTITUTION:A clock generator 13 imparts a clock pulse for controlling an arithmetic unit 25 to the input port 33 of the arithmetic unit 25. A time axis contraction indicating means 15 is, for example, a change-over switch and a contact piece 23 for changing over the connection with a power source side terminal 17 and an earth side terminal 19 is connected to the input port 33 through an intermediate terminal 21. When the contact piece 23 is connected to the power source side terminal 17, a wave form contracted in a time base direction is outputted but, when it is connected to the earth side terminal 19, voltage is not applied and, therefore, a usual wave form is outputted. Therefore, wave form display due to a usual time base and wave form display due to time base contraction can be selectively performed by manipulating the change-over switch 15. |
