Bulk measurement
Two rings track changes in fluid composition along the line.
Measurement technologies
Impedance
sensors.
Compare wire probes, ring electrodes and wall arrays by how they mount and which part of the flow they measure.
View configurations
Technology portfolio
Sensing geometries
Bulk measurement
Two parallel wires span the pipe bore. One excites the fluid and the other collects the current between them.
Spatial distribution
Ten electrodes around the inner wall reveal where a film, deposit or different fluid changes the near-wall response.
Local measurement
A needle enters perpendicular to the pipe axis. Its two exposed tips register passing gas–liquid interfaces.
Local measurement
Interleaved electrode fingers follow the curvature of the pipe wall and sense the material touching it.
Bulk measurement
A straight sensing rod spans the bore of a metal spool. The surrounding pipe is the reference electrode.
Images illustrate design geometries. Materials, dimensions and calibration are specified for each application.
Measurement principles
How the sensors work.
See how EIT maps conductivity, infrared absorption measures gases and ultrasound detects suspended particles or deposits.
Explore the three technologies