Avståndsmätning med Hög Noggrannhet till Låg Kostnad
Active sensors are used a lot in the society and industry, for example to gain better control over processes or to get proximity sensing features in different products. Within industry there is great interest in developing safe automation products that can be controlled with high accuracy but still at a low cost.The goal of this project is to develop a prototype of a non-contact rangefinder that measures distance using infrared light. The sensor is to be used for various applications in industries with relatively high accuracy and be compact, but at a low cost. By implementing a rangefinder into a product, more accurate detections of an object?s presence can be done.In this project a new distance sensor, EPC600 from ESPROS, was used. The EPC600 measures distance by the phase shift method, the EPC600 is also equipped with a temperature and ambient light sensor. After creating a model for corrections of measurements, an accuracy of ±10mm was reached for distances up to 2500mm under influence of ambient light of 400lux. The dimensions of the sensor are 29x20x24mm and the cost of the prototype is 250SEK.