Opto-electronic sensor
It is the topic of a class of opto-electronic 2D zero position indicators.
It is the topic of a class of opto-electronic 2D zero position indicators.
Sensors of this type consist of three components:
The features of the precision level define the detection range and the sensitivity of the complete system. The opto-electronic pick-up module includes the integrated emitter-receiver-unit and also the signal processing.
Light of an LED is directed to the level vial and reflected strongly in the area of the bubble. By means of a standard 4-quadrants-analysis the position of the focal point of the reflecting area is calculated from the single current values. In this manner it is possible to determine the position of the bubble within the detection range of the system. The procedure permits the accurate adjustment of the zero position with support of an actuator.
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... that the animal got its name because of its ability to balance. Libelle comes from libra, the diminutive of the Latin word libra (scales). Above all, this was used to designate spirit levels and the instruments of measurement technology are still known today under the word dragonfly.