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Device for heating up of a graphite tube in a graphite furnace of an atomic absorption spectrometer
Device for heating up of a graphite tube in a graphite furnace of an atomic absorption spectrometer
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机译:在原子吸收光谱仪的石墨炉中加热石墨管的装置
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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.
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