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HH系列定向传感器内部装有三只磁通门传感器以及三只石英加表，加表采用高温型软硅胶浮固定在胎体骨架上，从而就大大降低了MWD仪器高震动、强冲击对其影响的力度，进一步提高了定向传感器测量精度以及使用寿命，并在工作温度范围内，对六只传感器的温漂及输出均做了严谨的非线性补偿。
方位伽马又叫聚焦伽马，可在1秒钟更新200组方位伽马数据，工作温度0至150摄氏度。
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℃.
