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    • 8. 发明专利
    • INJECTION-FLUID EVALUATING SYSTEM
    • JPH05223724A
    • 1993-08-31
    • JP5712492
    • 1992-02-07
    • KYOWA HAKKO KOGYO KK
    • KATOU YASUKINAGANUMA KOKIOKUBO YUICHIHAYAKAWA EIJIITO KUNIO
    • G01N15/00
    • PURPOSE:To quantitatively and economically predict the occurrence of insoluble fine particles by constituting the system with a pump and circulating path and measuring means composed of a fine particle detecting sensor and number- of-fine-particles analyzer. CONSTITUTION:An injection-fluid injected from an injection-fluid injecting port 8 is circulated in a circulating path 6 by means of a returned fluid circulating pump 5 and buffered and carried by means of a returned liquid 4. When insoluble fine particles are generated when the injection-fluid is carried, a fine particle detecting sensor 12 detects the particles and a number-of-fine-particles analyzer 3 determines the number of the particles. In addition, since this system is constituted of a circulating system 3, the system 3 not only evaluates the presence/absence of insoluble fine particles by one time after the injection-fluid is injected, but can also dynamically evaluate the variation of the fluid with time in the system 3. Therefore, the presence of insoluble fine particles can be quantitatively measured with lapse of time.