Patent ID: 6723287
Filing Date: 2004-04-20
Classification: G01N,Y10T

Abstract:
A measuring system for use with an automatic chemical analyzer, said measuring system comprising:a turntable on which plural reaction cells are arranged circumferentially, each of said reaction cells holding a sample to be measured; a detector located in a fixed position relative to said turntable and acting to measure absorbances of said reaction cells in turn as said turntable rotates; a direct drive motor having an encoder, the direct drive motor connected to said turntable and the encoder producing an output signal comprising a plurality of pulses as the turntable rotates between the center points of each reaction cell, said pulses generated each time said turntable rotates through a given angle; a counter for creating an address signal from the output signal from said encoder; a comparator for comparing said address signal produced from said counter with address values previously found when said reaction cells arrive at a detection position, said comparator producing a coincidence signal when a match is found; and means for starting acceptance of absorbance measurements from said detector corresponding to said reaction cells in response to the coincidence signal from said comparator.