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Device for heating up of a graphite tube in a graphite furnace of an atomic absorption spectrometer

机译:在原子吸收光谱仪的石墨炉中加热石墨管的装置

摘要

A circuit useful in replicating the current produced in a photo diode operated as a current source at zero bias. A second scaled area photo diode is used to bias the circuit to maintain the zero bias over a wide range of illumination levels. The circuit operates in the picoampere range and is linear over at least six orders of magnitude.
机译:一种电路,用于复制在零偏压下用作电流源的光电二极管中产生的电流。第二个按比例缩放的光电二极管用于对电路进行偏置,以在较宽的照明水平范围内保持零偏置。该电路在皮安范围内工作,并且在至少六个数量级上呈线性。

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