ptac

Studies on the PTAC Detecting System for Fiber Optic Interfering Sensor

干涉型光纤传感器PTAC法相位检测研究

PTAC Strengthens Operation and Marketing of Fax Machines

PTAC加强传真机营销工作

An alternating current phase tracking ( PTAC ) homodyne scheme has been used to process output signal of the Michelson interferometer .

在信号处理过程中采用了交流相位跟踪零差补偿技术（PTAC）。

Preoperative transcatheter arterial chemotherapy ( PTAC ) was used with the method of Seldinger in 14 cases of advanced rectal cancer .

应用Seldinger法对14例中晚期直肠癌行术前动脉灌注化疗（PTAC）。

( Methods ) In 18 cases , PTAC was performed 1 ~ 2 times in each case with an intermission of 7 ~ 10 days before operation .

（方法）对18例直肠癌分别进行1～2次术前动脉插管化疗，化疗后观察临床症状、肿块大小。

The hybrid integrated optical accelerometer is a kind of practical accelerometer , which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme ( PTAC ) .

混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术（PTAC）。