As a result, the interface card can generate high- precision pulse signals and can be used in detection of quadrature encoder pulse(QEP) signal.

其主要功能是输出高精度的脉冲，对正交编码脉冲信号进行检测。

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Below is a three month price history chart comparing the stock performance of SM, versus QEP and XEC.

FORBES: Top Buys by Top Brass: Senior VP and General Counsel Copeland's $1.2M Bet on SM

Below is a three month price history chart comparing the stock performance of QEP, versus TOT and PBR.

FORBES: QEP Resources Shares Enter Oversold Territory

Below is a three month price history chart comparing the stock performance of ENP, versus XEC and QEP.

FORBES: ENP Crosses Critical Technical Indicator