Bias control of electrostatic transducers
    1.
    发明申请
    Bias control of electrostatic transducers 有权
    偏置控制静电传感器

    公开(公告)号:US20030048698A1

    公开(公告)日:2003-03-13

    申请号:US09949420

    申请日:2001-09-07

    IPC分类号: H04R019/00

    摘要: A method and system for controlling bias voltage for use with an electrostatic transducer are provided. The bias voltage is dynamically varied or set as a function of imaging mode, depth gain compensation, elevational apodization, azimuthal apodization, timing with respect to the transmit waveform, center frequency of transmit and receive waves and desired modulation. Opposite polarity on sub-elements is also provided for removing signals from electromagnetic interference and crosstalk between elements.

    摘要翻译: 提供了一种用于控制与静电换能器一起使用的偏置电压的方法和系统。 偏置电压根据成像模式,深度增益补偿,高程变迹,方位角变迹,发射波形的定时,发射和接收波的中心频率以及期望的调制而动态变化或设置。 还提供了子元件上的相反极性,用于从电磁干扰和元件之间的串扰中去除信号。