WENGLOR laser sensor and WENGLOR safety light curtain introduction

WENGLOR's products include: WENGLOR photoelectric sensors; WENGLOR inductive proximity switches; WENGLOR image processing systems. WENGLOR's photoelectric sensors use state-of-the-art process technology and are designed for high precision and high speed. The WENGLOR sensor not only measures distance and identifies objects, but also distinguishes color and gloss as well as detects luminescent markers. WENGLOR's inductive proximity switches include rugged, rugged all-metal sensors and a waterproof, solid metal sensor that allows easy detection of a wide range of metals in any possible industrial environment. WENGLOR's barcode scanners accurately identify all types of barcodes. WENGLOR's safety light curtain also protects people from harmful work environments. In addition, WENGLOR's image processing system is able to handle the highly complex detection and identification of the industry, and the operation is extremely simple.

There is a correlation between the output of the sensor and the input. Because the input and output are independent of time, the relationship between them, that is, the static characteristics of the sensor, can be an algebraic equation without a time variable, or the input can be used as the abscissa, and the corresponding output is The characteristic curve drawn on the ordinate is used to describe. The main parameters that characterize the static characteristics of the sensor are: linearity, sensitivity, hysteresis, repeatability, drift, and so on.
1. WENGLOR linearity: refers to the degree to which the actual relationship between the sensor output and the input deviates from the fitted straight line. Defined as the ratio of the maximum deviation between the actual characteristic curve and the fitted line to the full-scale output value over the full scale range. 2. Sensitivity: Sensitivity is an important indicator of the static characteristics of the sensor. It is defined as the ratio of the increment of the output to the corresponding increment of the input that caused the increment. The sensitivity is indicated by S.
3. WENGLOR hysteresis: The phenomenon that the input/output characteristic curves do not coincide during the change of the input amount from small to large (positive stroke) and the input amount changes from large to small (reverse stroke) becomes hysteresis. For input signals of the same size, the sensor's forward and reverse stroke output signals are not equal in magnitude. This difference is called the hysteresis difference.
4, WENGLOR repeatability: repeatability refers to the degree of inconsistency of the obtained characteristic curve when the sensor changes continuously in the same direction in the same direction.
5. Drift: The drift of the sensor means that the output of the sensor changes with time when the input amount is constant. This phenomenon is called drift. There are two reasons for drift: one is the sensor's own structural parameters; the other is the surrounding environment (such as temperature, humidity, etc.).
6. Resolving power: When the input of the sensor increases slowly from a non-zero value, the output undergoes an observable change after exceeding a certain increment. This input increment is called the resolution of the sensor, that is, the minimum input increment.
7. Threshold: When the input of the sensor increases slowly from zero, the output undergoes an observable change after reaching a certain value. This input value is called the threshold voltage of the sensor.