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Abstract
Provided is an automatic balance adjustable rotor for a centrifuge apparatus which enables to detect a weight unbalance between samples installed to buckets of the rotor, allows the rotor lever to move horizontally by the detection result, and distribute the remaining eccentric unbalance weight by a back lash during the rotation of the rotor. The rotor of the present invention comprises: a rotor lever (100) which ends are configured for supporting buckets in which samples are installed, wherein a block worm gear (104) is installed at the center of the top surface of the rotor lever; a rotor body (110) for supporting and allowing the rotor lever to horizontally move; a lever movement motor (180) installed in the rotor body; and a power transmission means (200) for transmitting a rotational force of the lever movement motor to the block worm gear, allowing the rotor lever to horizontally move.
Abstract
A drying balance (1) including a pan (3) that rests on a weighing system (2) as well as a heat source (5) for heating and drying a sample (4) on the pan. A sensor (11) measures the absorption coefficient, transmission coefficient, or reflection coefficient of the sample (4) in at least one predefined spectral range, or measures the moisture dependent dielectric constant of the sample while the weighing system (2) measures the moisture dependent weight of the sample (4). The drying balance allows the entire calibration curve of the sensor (11) to be determined in a single drying process.
Abstract
A balance plate intelligent game apparatus, structured to include a lower tier balance plate having a circular arc-shaped bottom portion and a transparent upper tier ball disk combined with a transparent top cover. A ball is disposed interior of the game apparatus so that when a young child treads on the balance plate with both feet and swings his body left and right, the ball is caused to roll into a helical groove of the upper tier ball disk from a helical groove of the lower tier balance plate, the ball then falls into a hole located center of the helical groove of the ball disk and drops into the helical groove of the lower tier balance plate, thereby enabling the ball to continuously roll between the upper and lower tiers. |