公开(公告)号：US20160298987A1

公开(公告)日：2016-10-13

申请号：US14916398

申请日：2014-09-05

申请人： HOTTINGER BALDWIN MESSTECHNIK GMBH

发明人： Marco M. SCHAECK ,  Herbert KITZING

IPC分类号： G01D18/00 ,  H03F3/45

CPC分类号： G01D18/00 ,  G01D18/004 ,  H03F3/45071 ,  H03F2200/261 ,  H03F2200/375 ,  H03M1/1004 ,  H03M1/1028 ,  H03M1/12

摘要： The present invention relates to a measuring amplifier (103) with background calibration and adjustment, as well as to a method for carrying out the background calibration and adjustment for such a measuring amplifier. The measuring amplifier amplifies, digitizes and processes at least one measurement signal (111) from at least one measuring transducer (102) with the aid of at least one amplifier arrangement (108). This can be intermittently replaced by an additional amplifier arrangement (107), which enables its interruption-free calibration and, if necessary, adjustment. In the calibration, both a zero point error as well as an amplification error of the amplifier arrangement are reliably determined. Moreover, the amplifier arrangement is calibrated directly and not indirectly. Thereby a high accuracy is achieved without measurement interruption. Furthermore, only one additional amplifier arrangement is generally required, even for a measuring amplifier with plural channels.

摘要翻译： 本发明涉及具有背景校准和调整的测量放大器（103）以及用于对这种测量放大器执行背景校准和调整的方法。 所述测量放大器借助于至少一个放大器装置（108）放大，数字化并处理来自至少一个测量传感器（102）的至少一个测量信号（111）。 这可以被额外的放大器布置（107）间歇地替代，这使得其无中断校准和必要时进行调整。 在校准中，可靠地确定放大器布置的零点误差以及放大误差。 此外，放大器布置被直接校准，而不是间接校准。 从而在没有测量中断的情况下实现高精度。 此外，即使对于具有多个通道的测量放大器，通常仅需要一个附加的放大器布置。