2022_Seismographs

School-Use Seismographs Assembly by using 3D Printed Parts by Yoshio Okamoto 2022-08-20

Information about my micro-barometer (JSESE 2022) is as follows,
http://www.yossi-okamoto.net/Microbarometer/Pascal_index.html

This page is the support page of our conference presentation this year (GeoSciEdiX 2022) as the following.

Yoshio Okamoto, Yuichi Naoki, Haruka Nishiguchi and Yutaka Maruo (2022): School-Use Seismographs Employing 3D-Printed Parts -Subsequent Developments and Practical Issues-, GeoSciEdIX, e-Poster
http://www.yossi-okamoto.net/2022_Matsue/GeoSciEd9_Poster_Seismograph_final_v6.pdf
Yoshio Okamoto(2022): School Seismographs Made with 3D Printed Part, JpGU2022, e-Poster
http://www.yossi-okamoto.net/2022_JpGU-GeoSciEdIX/JpGU_Poster_Seis_2022finalv2.pdf

0. Basic Concept
School and home use
Cheap costs
Digital recording with Arduino Uno and PC
Ground displacement proportional record
Same performance equivalent with the 59-Type JMA seismographs; 5 [sec] free period pendulums, 100x displacement of ground motion
Easy assembling: Not use special tools except coil winding and pendulum mass lathing
Daily materials purchased from DIY centers and Net shops

Now, the pages are under construction, so i will show you only photos, during the conference, the captions will be added.

1. Body & Pendulum
Horizontal component
Vertical component

2. Magnetic circuit

3. Amplifier

4. Softwares

5. Digital devices