Non-contact and maintenance-free sensor for measuring volume flow by CSI Technical Group | Friday, March 7, 2014 | 0 comment(s) The Bulkscan® LMS511 uses time-of-flight technology for non-contact measurement of volume flow on conveyor belts. Using the multi-echo technology,... Sensors, General Automation. Read More Comments View All 0 Comment(s). You must be logged in to post comments.