| 摘要 |
PCT No. PCT/FR88/00105 Sec. 371 Date Oct. 31, 1988 Sec. 102(e) Date Oct. 31, 1988 PCT Filed Feb. 25, 1988 PCT Pub. No. WO88/06727 PCT Pub. Date Sep. 7, 1988.Instrument comprising a burner (22) provided with a window (221), on the axis of which is disposed a flame spectrophotometric device consisting of a focusing lens (222, 231), a chopper (223) introducing a number of optical filters (224) at the rate of one per characteristic line in the spectrum of the element under analysis, an optoelectronic cell (232) disposed within the focusing zone of said lens, a demodulation assembly for demodulating the electric signal emitted by said cell, and devices for amplifying and displaying the electric signal emitted by said assembly. Special provisions render the instrument portable and autonomous without detracting from its high precision. |
