Thank you for your interest


Dr. D. Wehrhahn

Meßsysteme für die Qualitätssicherung

Hildesheimer Straße 140

D-30173 Hanover


Fon +49 511-512665

Fax +49 511-522152



For general information, please use the following form:


All blocks marked with an * must be completed.











Please send us:  


I have the following measurement task:



(Please describe in detail the requirements and add, if possible, a sketch, a drawing or photograph of the measurement object as an attachment).


We also require the following information to give you a suggested solution:


Use on a   Trolley
    Two-way vehicle
Compensation of vehicle movement required  
Camera display of the measuring position   yes  no
GPS position detection   yes  no
Pole detection by camera   yes  no
FMA software   yes  no
Pantograph for uplift measurement   yes  no
Compensation   yes  no
Presentation desired   yes  no
Please send me an e-mail for new additions / changes  








Fields with * have to be filled/accepted.


* I read the Data protection and accept it!



OVHWizard in operation in Gotthard base tunnel

OVHWizard measures conductor rail


OVHWizard is