RealShear

RealShear

RealShearTM Sensors

Lenterra's RealShear™ Wall Shear Stress sensors enable direct measurement of wall shear stress induced by liquid flows in mixers and pipes, or other vessels. The floating element of the sensor is mounted flush with the inner surface of a pipe, vessel, or rotor-stator workhead, providing in-line measurement with no disturbance to the process flow.

Key Features

RealShear F-Series

LIR provides in-line, real-time flow characterization to industries and laboratories looking to improve the overall efficiency and enable scale up of their manufacturing processes.
Majority of pharmaceutical, food, biologically active and other processes involving complex fluids, suspensions or powders require inline control to get a high quality product.

Model Number Measurement range1, Pa Resolution,2,3 Pa Nominal Resonance Frequency, Hz
F-100
±100
0.2
80
F-400
±400
0.7
150
F-1K
±1,000
1.5
230
F-5K
±5,000
6
450
F-25K
±25,000
20
820
  1.  Custom measurement ranges available
  2.  When used with an LOI interrogator
  3. Corresponds to one standard deviation of zero force noise

RealShearM-Series

DFF provides in-line, real-time measurement of shear or drag force in mixing and processing operations.
A highly promising PAT tool – continuous in-line flow monitoring eliminates guesswork and the need for costly, time-consuming offline measuring.

Model Number Measurement range1, Pa Resolution,2,3 Pa Nominal Resonance Frequency, Hz Housing shaft length, mm
M-200
±200
0.4
70
40.6
M-600
±600
1.6
80
40.6
M-2K
±2,000
5
150
40.6
M-5K
±5,000
11
220
40.6
M-25K
±25,000
40
440
40.6
M-1000
±100,000
80
900
30.6
  1.  Custom measurement ranges available
  2.  When used with an LOI interrogator
  3. Corresponds to one standard deviation of zero force noise

Product Specifications

Probe construction

Housing

Hollow stainless steel (316L) threaded (1/4-80 thread) shaft with 5/8” hexagon head. Fiber Bragg gratings adhered to the stainless steel (316L) lever inside housing.

Base

Material: SS 316L

Strain relief boot

Material: Polyolefin Plastic

Floating element

Material: SS 316L

Instrument cable

Material: SS squarelock tube covered with PVC tube Outside diameter: 0.24” (6.1mm)
Length: 6.5 ft (2m)
Operating temperature: -10oC to 60oC (14oF to 140oF)

Fiber optic connector

Connects the sensor with LOI interrogator Type: Duplex LC/PC fiber connector

Ingress Protection: IP67 – Dust Tight, Waterproof Operating temperature: -40oC to 85oC (-40oF to 180oF)

Directional response

Specifications are subject to change without notice