US 4,729,659 A · Method and apparatus for measuring a liquid mobility

Abstract

Liquid mobility is judged by the steps of filling the specimen in a specimen chamber formed in a specimen bed made of a transparent material just up to the level of the upper surface of the specimen bed, of pressing a liquid-absorbent material keeper for keeping a liquid-absorbent material horizontally to make the liquid-absorbent material contact with the specimen bed from the upper side of the specimen chamber, and of continuously detecting an intensity of a scattered light coming from the specimen in the specimen chamber with an optical detector consisting of a light emitting source and a light receiver and being disposed on the side of the lower surface of the specimen bed while the liquid-absorbent material is forced to contact the specimen bed. The liquid mobility is grasped in a short period of time.

Claims17

Dependent claims

A method of measuring a liquid mobility comprising the steps of:

disposing a specimen at least partially containing liquid in a specimen chamber having a recessed form and made at least partially of a transparent material;
pressing a liquid-absorbent material capable of absorbing said liquid against an opening of said specimen chamber to absorb said liquid;
projecting a light onto one surface of said specimen in said chamber from a light source so that the projected light is scattered from said specimen;
detecting an intensity of said scattered light coming from at least said one surface of said specimen;
and
measuring mobility characteristics of said liquid in accordance with a change in the intensity of said scattered light thus detected.

3 more elements

An apparatus for measuring a liquid mobility comprising:

a specimen chamber having an opening in one surface thereof for inserting a specimen at least partially containing a liquid, said specimen chamber being made at least partially of a transparent material;
means for retaining a liquid-absorbent material capable of absorbing liquid contained in said specimen and for pressing said liquid-absorbent material against said opening of said specimen chamber;
an optical detection means arranged on the opposite side of said specimen chamber from said one surface, said detection means including a light source for projecting a light onto said specimen and a detector for detecting an intensity of a scattered light coming from said specimen;
a trigger means for detecting when said liquid-absorbent material contacts said specimen chamber to produce a trigger signal for triggering said optical detection means;
and
means for storing data indicative of the intensity of said scattered light detected by said optical detection means in response to said trigger signal.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for measuring a liquid mobility

Life of this patent

Method and apparatus for measuring a liquid mobility

Life of this patent

Abstract

Claims17