Optical Sensors
These sensors operate on yarns from 20 to 5,000 denier and are scanned at 50Khz to provide an accurate assessment of the yarn profile, which with a range of sophisticated signal processing techniques software (patented and patent pending) provides very accurate measurement of:
Interlace - Nodes/m, distance between nodes and CV.
Broken Filaments - Individual broken filaments
Slubs - Differentiates slubs from BFs allowing segregation of these more serious faults
Denier Variation - Quantifies Short Term Denier Variation levels and Identifies both cyclic and transient faults
Denier Change - Changes of less than 3% to identify blown out and cross over filaments
ATY Bulk - Core and Loop factors across the full range of yarns
Twist Level - Twist and twist balance in multi ply yarns
In most applications, Interlace and Broken Filaments as well as Twist Level and Broken Filaments can be monitored simultaneously from a single sensor. 
Spin Finish Level Sensors
Spin finish measurement is made via conductance with conversion to spin finish level for each merge. The sensors are scanned at 250Hz to provide data on; mean spin finish level, short term variation and transient events. Data capture is provided for transient faults.
Tension Sensors
Tension is measured using Strain gauge based sensors with a frequency response of up to 450Hz, provide data on:
Yarn Tension - in a range of locations (depending on the process) with scanning at 250Hz, data is assessed against Tracking, Positional and Global limits, data capture is provided for both tracking and global faults.
Crimp Modulus - data is provided from analysis of the winding tension data acquired at 2kHz. Data is assessed against global and positional limits.
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