With SPEETEC, SICK is expanding its product range for speed and length measurement of objects moving in a linear path to include technology which measures directly on the material surface. The non-contact sensor is able to measure a wide range of web and continuous materials as well as blanks with an accuracy of just a few micrometers.
For sensitive, soft or smooth surfaces, customers from factory or logistics automation require non-contact measurement options for the length, speed and position of continuous webs and blanks. Optical scanning prevents damage or contamination, thereby increasing product quality. The SPEETEC by SICK offers a new way to measure without slip, without measuring elements or marking and without wear and tear on tactile sensor elements. Materials that cause wear, adhesion or abrasion damage to measurement solutions such as measuring wheel encoders, impairing their function, can be measured by the SPEETEC with a high degree of process reliability and availability.
Safe and highly-accurate measurement principle
Since the SPEETEC is equipped with class 1 lasers, the laser offers an alternative to expensive laser velocimeters and their costly protective measures. The return on investment (ROI) is particularly attractive. For the SPEETEC, this is less than a year. The non-contact measurement is performed with a laser Doppler process at speeds of up to 10 m/s. Two senders emit laser light – one in the direction of movement of the material, the other in the opposite direction. Since the two senders work independently of one another, possible mounting tolerances and surface fluctuations, for example with wavy surfaces, can be balanced out. All measurements are done with high precision: at a resolution of 4 µm, the accuracy relating to the object length of a meter is one millimetre. The repeatability in this case is specified with a half a millimetre. Measured values are output via the TTL or HTL interfaces common in the encoder world, making integration easy.
Increasing productivity while saving resources
With the SPEETEC, length, speed and position can also be detected in linear movements when switching between forward and backward motions. This sensor saves resources, even when measuring the speed of non-continuous products such as boxes or production segments. While velocimeters often require several meters of material feed, with the SPEETEC, individual parts down to the size of a business card can be reliably measured.
The rugged housing is designed for long-term use. Its shape and compact size characterize its high-quality design and enable integration into even the smallest spaces. The long window and the smooth edges indicate the measurement and mounting direction. These features impressed the jury of the iF Design Award. The SPEETEC won the iF Design Award 2020 in the Product category.