An oxygen index apparatus

Abstract

The utility model belongs to test equipment technical field relates to an oxygen index appearance, including the combustion cylinder of vertical arrangement, length measuring system, length measuring system includes work end and control end, work end can insert into the combustion cylinder, work end includes guide rail, first measuring rod and second measuring rod, control end includes crossbeam and motor, guide rail vertical arrangement, first measuring rod and second measuring rod all horizontal arrangement, first measuring rod is located below second measuring rod and the orthographic projection of both coincides, one end of both directly or indirectly is connected with guide rail, and each is equipped with an optical displacement sensor in the other end, crossbeam horizontal arrangement is above guide rail, and both are connected with each other, motor is used for driving second measuring rod moves along guide rail. The utility model has realized the automatic calculation of the damage length, does not need the manual sample measurement to reduce the human reading error and the operation time -consuming, has improved the test efficiency and the result accuracy significantly.

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