本设计选择双积分型A/D转换芯片，并采用光电隔离装置，有效地降低了电源噪声和电机干扰，大大提高了转换精度。

The double integration A/D converter and the electro-optical isolation device are used to reduce the mains noise and motor interference, which can significantly improve the accuracy of A/D conversion.

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公布的实数属性' % s '必须是单精度，实数，双精度或扩展型。

Published Real property '% s' must be Single, Real, Double or Extended.

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II 型由双隔离差压传感器和集成放大电路模块组成，具有高精度、稳定性好、可靠性高、动态性能好等特点。

BP93420D-II is made of HT20 piezoresistance differential pressure sensor and integrated circuit. has capability of high precision, good stability, high reliability and good sensibility.

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