地震観測用長期間連続可視記録装置の試作

Abstract

An ink-writing recorder by a new recording system is developed for the long term continuousobservations of earthquakes. One of the distinctive features of this new recording system is thatthe two pen-galvanometers are drived at a right angle to the feeding direction of the recordingpaper. By this system the long term continuous recording is possible without changing the record-ing paper. The paper feeding system of this recorder is similar to that of the line-printer systemof the computer. And the size of the recording paper is the same as a standard form of the line-printer system.Paper recorded by this new system will be efficiently stacked in the standard cabinets, easilyused and can be conveniently copied.