公开(公告)号：US4905005A

公开(公告)日：1990-02-27

申请号：US189408

申请日：1988-04-27

Applicant: Herve Arribard ,  Bruno Cornut ,  Gilbert Passade ,  Claude Sesques

Inventor： Herve Arribard ,  Bruno Cornut ,  Gilbert Passade ,  Claude Sesques

IPC: G06F3/05 ,  G01N21/27 ,  H03M1/00 ,  H03M1/38

CPC classification number: G01N21/27 ,  H03M1/1235

Abstract: The object of the present invention is the improvement of logarithmic amplifiers and/or converters and the applications of such devices in particular to photometric analyzer apparatuses.These amplifiers are characterized by the fact that they are linear with an amplification gain programmable by the .mu.P computer and that they may be preceded optionally by a reference voltage system.Application to the measurement of light transmitted by samples.

Abstract translation: 本发明的目的是对数放大器和/或转换器的改进以及这些装置特别是光度分析装置的应用。 这些放大器的特征在于它们与由μP计算机可编程的放大增益是线性的，并且它们可以在可选的参考电压系统之前。 应用于样品传输的光的测量。