Measuring Devices TRIZ Cases

A concentrated force-sensor row in a solid measuring roller cuts vibration error and force shunts for more accurate strip flatness measurement.

A TOF camera tracks strip flatness during hot rolling without heat-sensitive sensors, reducing calibration effort and enabling real-time control.

Multi-frequency electromagnetic sensing measures hot-rolled tube or bar diameter and thickness without radioactive sources or temperature-sensitive readings.

Two magnetic flux directions separate surface flaws from total defect signals, enabling precise inner defect detection in steel plates.

Running-meter tracking links web defects to reel position and process conditions, improving unwinding fault analysis despite thickness variation.

Combined scanning and spot radiation thermometers map both steel plate surfaces after cooling to catch uneven temperature and prevent quality defects.

Dual measurements in high- and low-tension strip zones let one controller switch feedback loops to improve flatness and reduce residual stress.

Periodic tension reduction enables optical strip flatness measurement during endless rolling, cutting roll maintenance while preserving control.

Dual-frequency electromagnetic coils measure hot-rolled profile diameter and wall thickness without radioactive sources, angular scanning, or conductivity-specific calibration.

Continuous thickness and length measurement lets rolled strip cuts align with tolerance zones, improving sorting accuracy and reducing waste.

A mathematical process segments rolling stock by mass to track material accurately across varying speeds and thicknesses.

Integrating detection coils into the rolling stand support structure eliminates transverse vibrations, ensuring accurate detection of small surface defects.

Numerical control drives hydraulic rollers to restore housing circularity, eliminating manual smithing and associated musculoskeletal trauma.

Independent nozzle rows in a single spray boom provide flexible descaling parameters without increasing device complexity or space requirements.

Cooling shell gap regulation uses coolant pressure or volume flow measurements to determine precise roll surface distance, avoiding unreliable direct sensors.

A split roll shape detection device computes meandering and plate shape using reactive forces measured by torque detectors.

Upstream traction control compensates for entry variations, maintaining narrow cross-sectional tolerances without adjusting common drive speeds.

A staggered light and dark pattern enables high accuracy flatness measurement of hot rolled steel sheets.

Adjusting projection angles compensates for looper angle changes, maintaining light pattern pitch consistency to ensure accurate flatness measurement.

Extracting measurement references from high-stress zones to eliminate rolling force distortions and improve roll pass determination accuracy.

Decoupled measuring bars with multiple force sensors reduce measurement uncertainty and improve resolution across the strip width.

Convert rolling mill coil data to processing coil datasets using image analysis of winding mirrors.

Optimizing mandrel tapers and side relief rates in pilger rolling to achieve precise tube dimensions.

A control system adjusts the tension ratio between roller assemblies to prevent belt slippage.

Replacing S-roller drives with linear drives eliminates residual stresses from bending, improving strip geometry and flatness for continuous manufacturing.

A casting and rolling system uses a speed master roller frame to dictate rotational speed for constant mass flow regulation.

Merging clamping and rotation reduces device size while maintaining tensile stress accuracy for reliable surface inspection.

A method calculates relative movement-dependent wear using sliding zone length and process variables for real-time monitoring.

Laser-based contour measurement of bent metallic strips resolves accuracy and reliability issues in tensionless rolling environments.

A laser scanner method generates shadow edges to determine shape parameters of elongated products.