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Lenterra Inline Rheometer (LIR) A fiber-optical technology bringing a solution to your process monitoring needs. LIR provides multiple characterization of flowing material in real time in a desired locality within your processing equipment. Inline or offline. Liquids or powders. Read more Drag Force Flow sensor The heart of LIR is DFF - a robust and reliable sensor that delivers sensitive measurements of shear stress and temperature in a flow. No moving parts and no electronics. Fiber-optical sensing and connectivity. Find out more RealShearTM Wall Shear Stress sensor An extension of DFF sensor, Lenterra’s RealShearTM is the smallest of its kind floating-element-based sensor. Installed flush with the wall of a mixer or pipe, it provides direct measurement of wall shear stress exerted by flowing liquid or gas, in real time. Small footprint. Sensitive measurement. More details Data on your computer screen Lenterra’s plug-and-play LENFLOW measurement software connects all parts of LIR, communicates with the interrogator, and displays multiple flow characteristics during the measurement. The post-processing software LENSIGHT includes a number of tools for specific and detailed analysis of the acquired data while comparing with results of other measurements. Intuitive controls. Modifiable graphics. Learn more In line and real time
Revolutionary step in rheometry
Off-line product testing is not sufficient to assure that a process consistently results in product with predetermined specifications. Lenterra’s inline solution opens a window to adequate process design, to knowledge and control of factors that are responsible for process variability. LIR offers a prospective for reliable production of a quality product. Learn more

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Lenterra Inline Rheometer (LIR) Read more Drag Force Flow sensor Find out more RealShearTM Wall Shear Stress sensor More details Data on your computer screen Learn more In line and real time
Revolutionary step in rheometry
Learn more

One solution for your many needs

LIR characterizes powders, liquids or any other material that flows or can flow

We will help you understand flow properties of your material by measuring forces and temperature inline, inside your processing equipment, locally and instantaneously. Whether you are trying to define the process endpoint, develop a scaling formula or just want to expose a distinctive quality of a material, we can help you to find a way.

Micro-optical flow force measurement technology

Lenterra’s measurement technology relies on extreme sensitivity of optical resonators to provide a miniature and sensitive but robust and simple flow sensor with no moving parts.

DFF probe is essentially a hollow pin of a millimeter diameter with a system of optical strain gages incorporated within. Minute deflection of the pin tip is detected by the fiber-optical gauges and transmitted to the optical controller as light signal via optical fibers. Using lightwave-based measurement, the sensors are nonconductive, electrically and chemically passive, and immune to electromagnetic interference.

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