大多数静电计都有修正零点漂移的方法。
Most electrometers include a means to correct for zero drift.
因此，需要引入其它高精度稳定测量环节，用以修正漂移误差，提高导航精度。
It is necessary to introduce other high precision measure method for excursion error correcting and guidance performance improvements.
表指示器应当是平衡式的并有微调，这样零点漂移可以不用调节可动元件来修正。
Gauge Pointers shall be balanced and provided with a micrometer adjustment so that zero shift may be corrected without adjusting the movement.
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