Abstract: Disclosed herein are a test apparatus that photographs a home mark of a microfluidic apparatus by using a camera and determining a position of a home of the microfluidic apparatus by using the camera, and a control method thereof. The method of controlling a test apparatus includes photographing a microfluidic apparatus at a predetermined frame rate by using a camera of the test apparatus while the microfluidic apparatus is rotating at a predetermined speed, acquiring a capture image which includes a home mark of the microfluidic apparatus among a plurality of images acquired by the camera, and acquiring information which relates to an encoder of the test apparatus and which corresponds to the home mark of the capture image and determining a position of a home of the microfluidic apparatus based on the acquired information.

Abstract: A test apparatus, which may compare detection data of a detector with reference data and correct a positional error in the detector due to the failing of a motor, and a method of controlling the same are provided. The test apparatus includes a detector configured to irradiate light to a plurality of chambers of a reaction device and detect a detection target, a motor configured to move the detector such that light is irradiated to the plurality of chambers, and a controller configured to compare detection data of the detector regarding the reaction device with reference data, determine a positional error in the detector, and correct the positional error.

Abstract: A rotation driving system and a method to determine the presence of a rotator on a turntable are provided. The rotation driving system includes an encoder to detect rotation information of a motor, and a controller to determine whether or not a rotator is present on a turntable and also, to adjust a gain of the motor according to moment of inertia of the rotator.

Abstract: Disclosed herein are a test apparatus that photographs a home mark of a microfluidic apparatus by using a camera and determining a position of a home of the microfluidic apparatus by using the camera, and a control method thereof. The method of controlling a test apparatus includes photographing a microfluidic apparatus at a predetermined frame rate by using a camera of the test apparatus while the microfluidic apparatus is rotating at a predetermined speed, acquiring a capture image which includes a home mark of the microfluidic apparatus among a plurality of images acquired by the camera, and acquiring information which relates to an encoder of the test apparatus and which corresponds to the home mark of the capture image and determining a position of a home of the microfluidic apparatus based on the acquired information.

Abstract: A test apparatus, which may compare detection data of a detector with reference data and correct a positional error in the detector due to the failing of a motor, and a method of controlling the same are provided. The test apparatus includes a detector configured to irradiate light to a plurality of chambers of a reaction device and detect a detection target, a motor configured to move the detector such that light is irradiated to the plurality of chambers, and a controller configured to compare detection data of the detector regarding the reaction device with reference data, determine a positional error in the detector, and correct the positional error.

Abstract: The control method includes obtaining an assumed angle and an actual angle of each of the plurality of rotation angle detecting members, determining a first rotation angle detecting member, the assumed angle and the actual angle of which differ from each other, determining a second rotation angle detecting member having the actual angle closest to the assumed angle of the first rotation angle detecting member, resetting the given count value of the second rotation angle detecting member to a new count value of the first rotation angle detecting member, changing the actual angle of the first rotation angle detecting member via the new count value of the first rotation angle detecting member to reduce an angular error between the assumed angle and the actual angle of the first rotation angle detecting member.

Abstract: Provided are an apparatus and method for recognizing a home position of a rotatable body. The apparatus includes: a tray including a support surface on which the rotatable body can be seated; a rotatable body position alignment unit for controlling the position of the rotatable body so that the rotatable body is aligned to be in a predetermined position when the rotatable body is seated on the support surface of the tray; a motor including a motor shaft that rotates by power supply, and a turntable that can be coupled with the rotatable body and rotates the rotatable body; and an encoder that is connected to the motor shaft and generates signals for measuring a rotational angle and a rotational direction of the motor shaft.

Abstract: A rotation driving system and a method to determine the presence of a rotator on a turntable are provided. The rotation driving system includes an encoder to detect rotation information of a motor, and a controller to determine whether or not a rotator is present on a turntable and also, to adjust a gain of the motor according to moment of inertia of the rotator.

Abstract: The control method includes obtaining an assumed angle and an actual angle of each of the plurality of rotation angle detecting members, determining a first rotation angle detecting member, the assumed angle and the actual angle of which differ from each other, determining a second rotation angle detecting member having the actual angle closest to the assumed angle of the first rotation angle detecting member, resetting the given count value of the second rotation angle detecting member to a new count value of the first rotation angle detecting member, changing the actual angle of the first rotation angle detecting member via the new count value of the first rotation angle detecting member to reduce an angular error between the assumed angle and the actual angle of the first rotation angle detecting member.

Abstract: An apparatus and method for controlling an optical disk device performs a disk loading and unloading operation based on at least one driving signal containing multiple pulses of different widths. The pulses are applied to control a motor to unclamp the disk relative to a spindle. Because the signal is formed from multiple pulses of different widths, the unclamping operation is performed with little or no shock forces and as a result the disk is ejected without damage and without being dislodged from the device.

Abstract: Provided are an apparatus and method for recognizing a home position of a rotatable body. The apparatus includes: a tray including a support surface on which the rotatable body can be seated; a rotatable body position alignment unit for controlling the position of the rotatable body so that the rotatable body is aligned to be in a predetermined position when the rotatable body is seated on the support surface of the tray; a motor including a motor shaft that rotates by power supply, and a turntable that can be coupled with the rotatable body and rotates the rotatable body; and an encoder that is connected to the motor shaft and generates signals for measuring a rotational angle and a rotational direction of the motor shaft.