Abstract: The invention is an image taking method comprising: taking images with a microscope in an analyzing space (40) at focal plane positions (5) shifted with an equal step size; and selecting an image from the taken images for further image processing.

Abstract: A control method for a centrifuge is performed by a motor drive unit to drive a motor of the centrifuge using pulses from an angle sensor. The method has a start phase, a regulated acceleration phase, a holding phase, a regulated deceleration phase, a regulated gentle deceleration phase, and a position adjustment phase.

Abstract: The invention relates to a method and apparatus for determining a chemical component from a sample, where the sample is measured on a test strip with the help of a color reaction. The method concerns finding the measurement time Tm for measuring the reflection of the test strip. The method comprises the following steps: a) Recording the R(t) function, b) Determining the T0 starting time at the detection of the wetting through of the sample, c) Generating the function R(t)+L(t), d) Monitoring and storing the ext[R(t)+L(t)] extreme value of the R(t)+L(t) function, and, at the same time, e) Generating the function R(t)+L(t)−ext[R(t)+L(t)] from the time of reaching an ext[R(t)+L(t)] extreme value, f) when the R(t)+L(t)−ext[R(t)+L(t)] function reaches a predetermined C(t) value, determining the Tm measuring time.