62.
    发明专利
    未知

    公开(公告)号:FR2467395B1

    公开(公告)日:1983-11-18

    申请号:FR8021328

    申请日:1980-10-06

    Applicant: ASEA AB

    Abstract: A fiber-optic temperature-measuring apparatus which monitors the photo-luminescence of a body of solid material subjected to the temperature to be measured. Exciting radiation is conducted by means of at least one optical fiber towards a material with temperature-dependent luminescence which is in optical contact with the fiber, whereby luminescence occurs. The radiation emitted as a consequence of the luminescence is transmitted via at least one optical fiber from the body to a place of measurement, where a measure of the temperature may be obtained. The luminescent body may consist of a semiconductor material.

    Spectralphotofluorometer
    65.
    发明专利

    公开(公告)号:DE3121216A1

    公开(公告)日:1982-02-04

    申请号:DE3121216

    申请日:1981-05-27

    Applicant: SHIMADZU CORP

    Inventor: OHKUBO KUNIHIKO

    Abstract: A spectralphotofluorometer is described in which at least the excitation monochromator is constructed such that the entry slit and the exit slit are arranged on opposite sides of a plane which contains the mid-point of the grating and is at right angles to its axis of rotation, so that the doubly diffracted light of zero order cannot exit from the exit slit as stray light.

    DEVICE FOR DETERMINING THE PROPORTIONAL AMOUNTS OF ALLOY CONSTITUENTS IN METALLIC ALLOY TEST SAMPLES

    公开(公告)号:GB1541679A

    公开(公告)日:1979-03-07

    申请号:GB990676

    申请日:1976-03-12

    Abstract: An alloy to be tested is formed of a basis metal and a plurality of alloying elements. A diffraction spectrum having lines corresponding to the basis metal and to each of the alloying elements is generated from the alloy by sparking and electrical signals each having an intensity proportional to the intensity of a respective one of the lines of the spectrum are formed. Each of these signals is integrated and the integrated signals corresponding to lines of the alloy elements are each compared with the integrated signal corresponding to the line of the basis metal and difference signals are generated. These difference signals are evaluated by being passed through a threshold circuit which sounds an alarm when they lie outside a predetermined range. The device can be calibrated by comparing each of the signals corresponding to one of the alloying elements with only a portion of the signal corresponding to the basis metal so that the arrangement can be set up to generate an output only when the alloy being sampled has a composition different from a predetermined calibrated composition.

    SPECTROPHOTOMETER WITH PARALLEL SENSING

    公开(公告)号:GB1537933A

    公开(公告)日:1979-01-10

    申请号:GB3712477

    申请日:1977-09-06

    Abstract: A light source (2, 3) uniformly illuminates a specimen (1). The light radiated by the specimen (1) is collected by a lens (5). A slit (6) restricts the angle of the light emanating from the lens (5), which is thereupon decomposed by a dispersion device (8) into the various wavelengths. A lens arrangement (9) focuses the decomposed light and projects it onto a plurality of photodetectors (10) which are arranged in the plane of the focused spectrum. The signals of the photodetectors are evaluated in an electronic device (11). This spectrophotometer makes it possible for the intensities of the individual light components to be measured simultaneously.

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