| 摘要 |
PURPOSE:To make it possible to perform automatic measurement, by making the liquid surface of a sample approach to the central axis of rotation, thereby securing measuring accuracy, and linking the processes of sample feeding, measurement, discharge, and washing. CONSTITUTION:A sample 3 is injected to a sample container 2 through a solenoid valve V1 from a sample injecting pipe 11. When the sample 3 reaches a specified amount, the solenoid valve V1 is closed, a solenoid valve V2 is opened, atmospheric pressure is applied, and the sample left in the injecting pipe 11 is pushed into the sample container 2. Then, a solenoid valve V3 of a discharge pipe 12 is opened and sucking is performed. The sample 3 is picked into the sample container 2 at the position of a tip 12a of the discharge pipe accurately. The liquid surface at this time is close to a plane including a central axis 5 of rotation. Then, all the selenoid valves are closed. Cooling water is made to flow through a pipe 18, and the temperature of the sample is decreased. With the sample container 2 being rotated by a motor, the fluidizing point is optically measured. The sample is heated by a heater 34 after measurement, the container 2 is inclined, and the sample is discharged through a pipe 14. Washing of the sample container 2 is performed by injecting the sample 3 from the injecting pipe 11 by a common washing method. |
