卡西尼装上首台仪器将在明年发射的卡西尼土星探测器最近装上了首台科学仪器。这台仪器称为无线电与等离子波子系统（ＲＰＷＳ），将用于确定土星的转动速度，并研究其内部磁场、闪电及与带电离子的相互作用。该子系统的天线长１０米（见图），是卡西尼探测器上伸出的三根... Cassini to install the first instrument The Cassini Saturn probe, to be launched next year, has recently been fitted with the first scientific instrument. Known as the Radio and Plasma Wave Subsystem (RPWS), this instrument will be used to determine Saturn’s rotational speed and to study its internal magnetic field, lightning and its interaction with charged ions. The subsystem antenna length of 10 meters (see photo), Cassini detector extends three ...