Makoto Mita

1st Sounding Rocket Symposium (July 17-18, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan

1st Sounding Rocket Symposium (July 17-18, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan

4th Workshop of Nano-Electronics For Space Use (December 15, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan

Balloon Symposium 2016 (November 1-2, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan

We have developed a novel MEMS scanner of the laser radar for landing to the planet. The scanner has to overcome launching vibration and impact and can be used in harsh environment of the space

This paper describes the on-orbit results and lessons learned of the small scientific satellite "INDEX" (REIMEI) for aurora observation and demonstration of advanced satellite technologies. REIMEI is a small satellite with 72kg mass, and is provided with three-axis attitude controlled capabilities for aurora observation. REIMEI was launched into a nearly sun synchronous polar orbit on Aug. 23^<rd>, 2005 (UT) from Baikonur, Kazakhstan by Dnepr rocket. REIMEI satellite functions satisfactorily on the orbit. Three axis control is achieved with accuracy of 0.05 deg. Multi-spectrum images of aurora are taken with 8Hz rate and 2 km spatial resolution to investigate the aurora physics. REIMEI is a small scientific satellite for aurora observation and advanced satellite technologies, and was launched into a nearly sun synchronous polar orbit on Aug. 23^<rd>, 2005 (UTC) from Baikonur, Kazakhstan by Dnepr rocket. REIMEI satellite functions satisfactorily on the orbit. The three-axis attitude control is achieved with accuracy of 0.05deg. REIMEI is performing the simultaneous observation of aurora images as well as particle measurements. REIMEI indicates that even a small satellite launched as a piggy-back can successfully perform the unique scientific mission purposes.

A transmission optics system for a 2D scanning LIDAR system for a deep space explore with a MEMS mirror has been proposed. 2D scanning LIDAR that developed in ISAS/JAXA has many narrow field of views that are placed dispersion array in scanning angle at φ10°. A transmission system of 2D LIDAR has a Passive Q-SW YAG leaser as a transmitter. It shot its leaser pulse on a field of view(φ1.5mrad) of receiver system. In this result, the detection method of the MEMS mirror that is driving in 500Hz has been proposed. From experiment, we found the accuracy of the method was less than 0.5mrad.

A novel micromachined actuator which is developed to produce precise and unlimited displacement. The actuator is driven by impact force between a silicon micro-mass and a stopper. A suspended silicon mass is encapsulated between glass plates and driven by electrostatic force. By hitting a stopper, it generates impact force to drive the whole actuator in a small step (&acd;10nm). It is a micromachined and electrostatic version of the impact-drive actuator. The overall dimension of the device is 3mm×3mm. The driving voltage is 100V and average speed is 2.7μm/s. The total thickness is 600μm.