公开(公告)号：US3922091A

公开(公告)日：1975-11-25

申请号：US35582773

申请日：1973-04-30

Applicant: MICROMEDIC SYSTEMS INC

Inventor： SUVA TITO ,  SANZ MANUEL C

IPC: G01N21/27 ,  G01N33/483 ,  G06J1/00 ,  H03M1/00 ,  G01J3/42

CPC classification number: G06J1/00 ,  G01N21/274

Abstract: The digital output of a spectrophotometer is multiplied by a factor to correct for drift in the absorbence of a sample standard. The value of the factor is determined by comparing a standard sample which has undergone drift against a preset value stored in the drift correction circuit. Circuitry is provided to accumulate the amount of drift correction and sound an alarm if it exceeds a predetermined value.

Abstract translation: 分光光度计的数字输出乘以一个因子，以校正样品标准品的吸光度漂移。 通过将经历漂移的标准样品与存储在漂移校正电路中的预设值进行比较来确定该因子的值。 提供电路以累积漂移校正量并且如果其超过预定值则发出报警。