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Flow cell and particle measurement device using same

A technology for measuring equipment and particles, which is applied in the direction of measuring devices, individual particle analysis, particle and sedimentation analysis, etc., and can solve the problem that the convergence angle of the condenser lens system cannot be fully utilized.

Inactive Publication Date: 2005-09-14
RION COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the flow cell 100 used for conventional particle detection equipment, the inner walls b, c, d and e are disadvantageously limited by the particles flowing through the particle monitoring area M The path of the scattered light Ls, and the converging angle of the condensing lens system 101 not fully utilized

Method used

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  • Flow cell and particle measurement device using same
  • Flow cell and particle measurement device using same
  • Flow cell and particle measurement device using same

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Embodiment Construction

[0014] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0015] Figure 1 is a perspective view of a first embodiment of a launder according to the present invention; figure 2 (a) is a cross-sectional view viewed from direction A in Fig. 1, and figure 2 (b) is a sectional view observed from B direction in Fig. 1; Fig. 3 is a perspective view according to the second embodiment of the launder of the present invention; Fig. 4 (a) is a sectional view observed from the C direction of Fig. 3, And Fig. 4 (b) is a sectional view observed from the D direction of Fig. 3; Figure 5 is a schematic structure of a particle measuring device according to the present invention.

[0016] As shown in Figures 1 and 2, the flow cell 1 of the first embodiment is made up of transparent parts, and is provided with a channel 2 for allowing the sample liquid to flow therethrough in the direction of the arrow so as to form a particle m...

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Abstract

According to the present invention, there is provided a flow cell which can detect scattered light more efficiently by fully utilizing the condensing angle of a condenser means. In the flow cell in which a particle monitoring area M is formed within the flow cell by irradiating with laser light La, and scattered light Ls generated by particles contained in sample fluid passing through the particle monitoring area M is condensed by a condenser lens L so as to obtain information including a particle diameter, inner walls are provided such that the scattered light Ls is condensed in a state where the condensing angle [theta] of the condenser lens L is fully utilized

Description

technical field [0001] The present invention relates to a flow cell through which a flowing sample liquid flows so as to obtain information such as particle diameters by detecting light scattered by particles contained in the sample liquid when light is irradiated, and The invention also relates to a particle measurement device using a launder. Background technique [0002] like Image 6 The flow cell 100 shown in (a) for conventional particle detection equipment is composed of transparent parts and has a straight channel 100a with a set length and a rectangular cross-section. Moreover, the shape of the launder as a whole is an L-shaped pipe. Through the condensing lens system 101 (see Japanese Patent Application Laid-Open No. 11-211650), the central axis of the straight channel 100a substantially corresponds to the axis receiving the scattered light Ls. Incidentally, reference numeral 102 denotes a laser light source, and reference numeral 103 denotes a photoelectric conv...

Claims

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Application Information

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IPC IPC(8): G01N15/14
CPCG01N15/1459G01N2015/1493G01N15/1434
Inventor 松田朋信
Owner RION COMPANY