Abstract: The invention relates to an automatic separator/extractor and a method of controlling same, with the object, particularly in all manner of fields such as medical science, agricultural science, scientific fields, or pharmaceuticals, of being able to achieve at high speed and accuracy, extraction or separation of precipitate or supernatant at a high quality, accuracy and reliability, above that which can be achieved by manual means.

Abstract: A rotor temperature control system for a centrifuge is provided. This system includes an ambient temperature sensor for detecting ambient temperature around the system, a temperature regulating device for regulating temperature of a rotor of the centrifuge according to an operation factor which is variable within a range of preselected maximum to minimum values, and an operation factor controller for controlling a value the operation factor of the temperature regulating device in a preselected relation to the ambient temperature and a given target rotor temperature to modify the temperature of the rotor to the target rotor temperature. With this arrangement, the temperature of the rotor is modified to a desired value quickly regardless of an initial temperature of the rotor.

Abstract: A management system for use in a centrifuge equipped with a detachable rotor which is rotatable so as to separate density-different samples by a centrifugal force due to the rotation. The management system is for managing the lifetime of the rotor on the basis of the detection results of an operated-condition detector for detecting operated conditions such as the number of times of rotation, running time and rotational speed of the rotor. The management system includes a data storing device which is provided on the rotor to be rotatable therewith and is composed of a magnetic recording medium to allow keeping data relating to the operated conditions of the rotor. Also included in the management system is a data processing unit coupled through a data reading and writing device such as a magnetic head to the data keeping device and also coupled to the operated-condition detector to be responsive to the operated conditions.

Abstract: A rotating machine including a rotating body connected to and driven by a drive unit via a drive shaft is protected by stopping rotation of the rotating body and drive shaft in response to a detected vibration amplitude exceeding a predetermined allowable value at two spaced time instants.