Title: Microcomputer atomic absorption spectrophotometer
Application Number: 90110282 Application Date: 1990.12.30
Publication Number: 1062975 Publication Date: 1992.07.22
Approval Pub. Date: Granted Pub. Date: 1995.06.21
International Classifi-cation: G01N21/31
Applicant(s) Name: Metal Inst., Chinese Academy of Sciences Address: 110015
Inventor(s) Name: Jiang Zhimin, Liang Yanzhi
Attorney & Agent: ZHU GUANGLIN
Abstract:
     This invention relates to a microcomputerized equipment for measuring trace elements by means of atomic absorption spectrometry, which si composed of light source, optical channel system, atomizing device and signal detecting and measuring unit. The light source includes power supply, heavy hydrogen lamp and two element lamps and its light goes through a semitransparent-semireflector and a lens into atomizing device, monochromic device and photomultiplier tube, whose output is input to microcomputer through preamplifier, main amplifier, inverter, zero holder and A/D converter. The test result is printed out or displayed. Its advantages are quick, precise and correct measurement and Chinese-character output from microcomputer.
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