Applus+ around the world
Close Countries Panel
  • Belgium
  • Brazil
  • China
  • Czech Republic
  • France
  • Germany
  • India
  • Indonesia
  • Italy
  • Japan
  • Malaysia
  • México
  • Poland
  • Russia
  • Slovakia
  • South Africa
  • South Korea
  • Spain
  • Sweden
  • Taiwan
  • Thailand
  • Turkey
  • UK
  • United Kingdom
  • USA
Close Divisions Panel
Energy & Industry Division
Industrial and environmental inspection, vendor inspection, technical assistance, non-destructive testing (NDT) and technical staffing for all type of industries.
Logo RTD Logo VELOSI Logo NORCONTROL Logo Intec Logo K2
Logo Ingelog Logo JAN Logo Kiefer Logo Novotec Logo NRay
Logo PTJava Logo Skc Logo XRay Logo Qualitec
Laboratories Division
Multidisciplinary laboratories.Testing and engineering for product development. Conformity testing and product certification. SYSTEMS CERTIFICATION.
Logo Applus Laboratories Logo Applus Certification
Automotive Division
Statutory vehicle inspection services and emission & gas testing solutions worldwide.
Logo Applus Automotive Logo Applus ITVE Logo NCT Logo Applus Bilsyn Logo K1
Logo Technologies Logo ITVs Logo Riteve
IDIADA Division
Design, engineering, testing and homologation services for the automotive industry worldwide.
Logo Applus IDIADA

Electromagnetic (EM) Services

The electromagnetic (EM) field method typically involves the generation of an electromagnetic field into the earth to measure the response of the induced secondary field signal. There are two main types of EM method: time domain electromagnetics (TDEM) and frequency domain electromagnetics (FDEM). TDEM instruments measure the decay time of the induced field signal whereas the FDEM method measures the amplitude and the phase of the EM signal. EM data is used to determine terrain conductivity and the presence of metal and is capable of detecting both ferrous and non-ferrous materials in the subsurface. This is important in environmental projects, where detecting changes in conductivity and the presence of metal is critical.
Applus+ provides clients with professional EM services and real-time results that can facilitate site characterisation. We are able to use EM services in conjunction with other geophysical services to create a thorough subsurface-investigation package. Combining EM services with complementary services such as ground penetrating radar is often valuable from an environmental perspective.
Clients who partner with Applus+ for their EM services will gain:
  • Rapid data acquisition and processing
  • The chance to interface directly with GPS for the real-world positioning of results
  • Advanced data processing
  • A package of complementary geophysical services
  • Environmental site assessments
  • Engineering support
Applus+ geophysicists can design surveys that are tailored to the specific needs of each client, providing timely and accurate data in a professional report.
Electromagnetic services provide a fast and reliable way of quickly ascertaining subsurface information. Engineers and construction firms can benefit from an EM survey. EM data can help determine the presence of subsurface metal (utilities or underground storage tanks, for example). It also can detect changes in soil conductivity and changes in subsurface properties such as water content or contaimiation in the subsurface.
With its highly trained personnel and the most advanced software on the market, Applus+’s advanced EM services offer site-characterisation solutions to a range of specialist environmental and engineering problems.
Our EM method allows for rapid and accurate data collection and processing, thereby increasing both the productivity and cost efficiency of our clients’ projects.
Electromagnetic (EM) Services Electromagnetic (EM) Services
Site map