The multiple brushless resolver uses multiplication demodulation and signal composition to achieve rate and position signals proper for driving switch reluctance motor.

多极无刷旋转变压器采用乘法解调及信号合成得到适合开关磁阻电机驱动用的速度及位置信号。

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Unlike spectrum analysis, without multiplication, the processing is made at high speed, its results have no connection with power of the signal.

与频谱分析法相比，它不需要进行乘法运算，因而处理速度快，分析结果与信号能量无关。

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Substracting two signals can obtain signal proportional to density and after multiplication and evolution operations, an output signal proportional to mass flow can be obtained.

如果将二者输出的电信号相减，可得到跟密度成正比的信号，然后进行乘法与开方运算，即可得到跟质量流量成正比的输出信号。

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