[Development of a recorder of environmental parameters for small biocabin]

A recorder for recording temperature in a small biocabin on board the recoverable satellite and the speed of a centrifuge incorporated in the cabin was developed. Using the internal timer and A/D converter of a microcomputer, it automatically measures the temperature in the biocabin and the speed of the centrifuge alternatively every 30 min, then writes the data to Flash Memory 28C64. It demonstrated that the recorder controlled by a low consumptive PIC microcomputer is suitable for use in the small biocabin.