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HH系列定向傳感器內部裝有三只磁通門傳感器以及三只石英加表，加表采用高溫型軟硅膠浮固定在胎體骨架上，從而就大大降低了MWD儀器高震動、強沖擊對其影響的力度，進一步提高了定向傳感器測量精度以及使用壽命，并在工作溫度范圍內，對六只傳感器的溫漂及輸出均做了嚴謹的非線性補償。
方位伽馬又叫聚焦伽馬，可在1秒鐘更新200組方位伽馬數據，工作溫度0至150攝氏度。
HH series directional sensor consist of
three high precision fluxgate sensors and three quartz accelerometers, in which all six sensors are fixed into the framework with advanced heat resisting soft
silicone material. The novel fixation method significantly reduces the negative
effects of high vibration and impact of MWD equipment, and increases the
accuracy and service life of the directional sensor. In addition, nonlinear
temperature compensation is adopted for six sensors within the working
temperature range.
Amuthal gamma is also called focused gamma, which can update 200 gamma data at different roll angles within the working temperature range from 0 to 150℃.
