Metrology for quality assurance: from sensors to inline measuring systems.
Dr. D. Wehrhahn Meßsysteme für die Qualitätssicherung e.K.
Hanover · Krefeld (on-site system operation)New on Amplifa
About Dr. D. Wehrhahn Meßsysteme
Dr. D. Wehrhahn Meßsysteme für die Qualitätssicherung e.K. has been developing, manufacturing and distributing metrology for industrial quality assurance since 1994 – from individual sensors in standard or custom designs to complete inline measuring systems integrated into the production line, including mechanics and customized software. The portfolio comprises non-contact laser distance and thickness measuring systems (OPTImess, OPTIscan, OPTImess 2D, DeltaMaster), ultrasonic distance and thickness measuring systems based on piezoceramic and capacitive transducer principles, contact measuring systems such as wheel diameter and hot-rolled sheet thickness gauges, as well as foam qualification systems. The solutions are used in the road and railway industry, the steel industry, the tire and rubber industry and the automotive industry, and are distributed worldwide. As part of digitalization, calibration, differential and compensation methods as well as evaluation and forecasting software are offered. The company is certified to DIN EN ISO 9001 and DIN EN ISO 14001 and is based in Hanover.
- Site
- Hannover
- Processes
- Laser metrology / non-contact laser distance measurement, Ultrasonic metrology (distance and thickness measurement; piezoceramic and capacitive transducers), Contact metrology (wheel diameter gauge, hot-rolled sheet thickness measuring system, contact, Thickness measurement based on the laser triangulation principle (DeltaMaster, up to 50, Roll-over measuring system IWMS for wheel profile measurement (flange thickness, flange height, qR, Contact wire wear measuring system CatPro (optical), Contact wire position measuring device OVHWizard (height and stagger), PUR foam qualification system / foam height measuring system
- Materials
- Laser Metrology, Ultrasonic Metrology, Contact Metrology, Roll-Over Measuring System
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1994
- Industries
- Road and railway industry, Steel industry, Tire and rubber industry, Automotive industry, General industrial quality assurance
- 01
Consulting and requirements capture
- 02
Design and software development
- 03
Sensors in standard or custom designs
- 04
Mechanics and system integration
- 05
Calibration and compensation
- 06
Commissioning and maintenance
Measuring Technologies
Laser Metrology
Non-contact 1D and 2D distance and thickness measurement based on the laser triangulation principle, e.g. up to 50 measurements per second with the DeltaMaster-3.
Ultrasonic Metrology
Distance and thickness measurement in air using piezoceramic narrowband or broadband capacitive transducer types.
Contact Metrology
Wheel diameter gauges, hot-rolled sheet thickness measuring systems and contact thickness measuring systems for direct measuring tasks.
Roll-Over Measuring System
System integrated into the track for wheel profile measurement on rail vehicles with ± 0.05 mm accuracy up to 45 km/h.
Locations
Hanover
DEHeadquarters: manufacturing, planning and distribution of sensors and metrological systems
- Laser triangulation sensors DeltaMaster-3
- Ultrasonic measuring systems DELTA MASTER
- Contact wire measuring systems CatPro and OVHWizard
- Foam qualification systems
- Contact thickness measuring systems
Krefeld
DEInstallation site of a roll-over measuring system (indoor/outdoor)
- Roll-over measuring system IWMS for wheel profile measurement
Measuring Systems and Sensors
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser metrology / non-contact laser distance measurementInspection | – | – | – | – | – |
| Ultrasonic metrology (distance and thickness measurement; piezoceramic and capacitive transducers)Inspection | – | – | – | – | – |
| Contact metrology (wheel diameter gauge, hot-rolled sheet thickness measuring system, contactInspection | – | – | – | – | – |
| Thickness measurement based on the laser triangulation principle (DeltaMaster, up to 50Inspection | – | – | – | – | – |
| Roll-over measuring system IWMS for wheel profile measurement (flange thickness, flange height, qRInspection | ± 0.05 mm | – | – | – | – |
| Contact wire wear measuring system CatPro (optical)Inspection | – | – | – | – | – |
| Contact wire position measuring device OVHWizard (height and stagger)Inspection | – | – | – | – | – |
| PUR foam qualification system / foam height measuring systemInspection | – | – | – | – | – |
| Traversing thickness measurement (non-contact thickness measuring system)Inspection | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Roll-over measuring system for wheel profile measurement (indoor/outdoor) | Dr. D. Wehrhahn IWMS | – | – | – | Krefeld |
| Laser sensor (laser triangulation, thickness measurement) | Dr. D. Wehrhahn DeltaMaster-3 | – | – | – | – |
| Laser measuring system (1D/2D) | Dr. D. Wehrhahn OPTImess / OPTIscan / OPTImess 2D | – | – | – | – |
| Ultrasonic distance and thickness measuring system | Dr. D. Wehrhahn DELTA MASTER systems | – | – | – | – |
| Contact wire wear measuring system | Dr. D. Wehrhahn CatPro | – | – | – | – |
| Contact wire position measuring device | Dr. D. Wehrhahn OVHWizard | – | – | – | – |
| Foam qualification system / foam height measuring system | Dr. D. Wehrhahn | – | – | – | – |
Additional services
Quality
The company is certified to DIN EN ISO 9001:2015 (certification body DGZ mbH) for the manufacturing, planning and distribution of sensors and metrological systems and operates an environmental management system certified to DIN EN ISO 14001:2015. Calibration, differential and compensation methods ensure measuring accuracy even under harsh industrial conditions.
| Evidence | Hanover |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1994
Founding; since then delivery of metrology from individual sensors to complete inline measuring systems.
- 2025
Re-certification to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015 (valid until 12.11.2028).
Commissioning of the IWMS roll-over measuring system for rail vehicles in Krefeld.