page 3 of 3 2007.03.06

A leader, not a follower

A success story linked to innovation
BTSR’s vocation for innovation has allowed it to introduce a revolutionary new solution on to the market. We refer to the sensor using the image variation technique, which differs markedly from the products currently available on the market (piezoelectric sensors, capacitive sensors, traditional optical sensors) and, in its applications, gives the user important advantages in terms of yarn movement control and quality of the production processes.
The technique used, which is covered by an international patent, is just one of over 200 solutions that the company has designed and developed in recent years.
These devices, available in the latest IS3 F version, are based on a new concept: checking the yarn profile and, within a window visible to the sensor, continuous monitoring its variations.
The IS3 F family of sensors uses, in particular, a sophisticated control technique based on lens/optic ceramic bidimensional analysis. This technique makes it possible to monitor the yarn by bringing it into contact with the lens (self-cleaning) or positioning it within the large yarn reading area (8 mm) without it coming into contact with the lens.
The sensor thus functions like a small camera, which can pick up both a vibration and a linear movement of the yarn. It can monitor any type of thread or yarn and it can even be applied in extreme conditions since it is not influenced by environmental conditions (machine vibrations, humidity, accumulated dirt/dust, water/oil contamination –IP67 certification-).
The BTSR sensors that use the image variation technique allow the dynamic monitoring of the yarn running, verifying its movement and detecting abnormalities even in the presence of non moving yarn.
These new sensors, developed in the company’s R&D department with a view to guaranteeing complete customer satisfaction, thus offer important advantages over the traditional solutions available on the market. Their miniaturisation means that they can be installed on many types of machine, even in positions inaccessible to other sensors, while the use of the most recent technology guarantees an extremely competitive cost/performance ratio. The yarn movement speed, the sensitivity adjustment and the reaction time (programmable from 5 to 5000 msec) can be decided by the user wishing to verify, beyond doubt, the state of yarn movement and/or breakage.