Thickness profile measurement of blown films (non-contact and contact measurement 10µm to 500µm)

The systems of the BTS 8104 family are designed as reversing systems and are based on the capacitive technology. They are directly applied immediately behind the calibration cage on the bubble and therefore offer a very fast and efficient control. Adaptive reversing speed allows an ideal adjusting of the measurement to each step of the extrusion process. Therefore, these systems present the basis for a perfect film production regarding quality and material input.

Advantages:

100 % non-contact and contact capacitive measurement methods
Different coating for different film types
Adaptive reversing speed to ensure fast controlling
No consequential costs due to isotopes or X-rays
Short control loop ensured by measurement on the bubble

Material parameter:

Thickness up to 300µm (reversing) and 500µm (traversing), non conductive material
Width from 255mm to 3600mm (double flat)
Bubble vibration (horizontal) up to 10Hz (non-contact sensor, reversing - BTS 8101NC)
Different sensor coatings allow measurements on different film types

The BTS family are designed as reversing and traversing measurement systems equipped with capacitive sensors. The innovative technology allows extreme precise measurements for increased production efficiency.

BTS 8104.NC

Catalogue "Measuring and inspection systems for plastics processing industry" (PDF, 1.52 MB)

The non-contact version thicknessCONTROL BTS 8104.NC is based on a patented pneumatic position control. This version works with the non-contact air bearing technology which allows a perfect compensation of the movement on the bubble.

Features:

100% non-contact measurement
Resolution <0.1 µm
No calibration necessary during measurement

BTS 8104.C

Catalogue "Measuring and inspection systems for plastics processing industry" (PDF, 1.52 MB)

The BTS 8104.C is designed for reversing measurements after the extrusion. The capacitive sensor is available with different coatings.

Features:

Resolution <0.1 µm
Without reverse-frame the sensor can be used for measurement on flat films
No calibration necessary during measurement

BTS 8102.EC

Catalogue "Measuring and inspection systems for plastics processing industry" (PDF, 1.52 MB)

The BTS 8102.EC C-frame is based on the combisensor principle equipped with non-contact capacitive sensors. The distance between sensor and film is measured with the capacitive sensor. The eddy-current sensors ensures the thickness signal by a reference measurement to a second target. The system is designed as a C-frame and can be integrated in the flat layer section.

Features:

100% non-contact measurement principle
Resolution <0.1µm
Adaptable traversing speed

BTS 8101.EC

Catalogue "Measuring and inspection systems for plastics processing industry" (PDF, 1.52 MB)

The BTS 8101.EC O-frame is based on the combisensor principle equipped with non-contact capacitive sensors. The distance between sensor and film is measured with the capacitive sensor. The eddy-current sensors ensures the thickness signal by a reference measurement to a second target. The system can be integrated in the flat layer section.

Features: