Company History 
1958 - Patent for Electromagnetic Shaker
1971 - Digital Transient Recorder
1978 - Digital FFT Analyser
1982 - Switching Power Amplifier
1984 - PC based Data Acquisition System
1985 - 2" stroke Shaker System
1988 - PC based Vibration Control System
1989 - Fiber optic HV Isolator System
1989 - Advanced MOSFET switching amplifier
1995 - High Speed Hard disc Recorder
2000 - Advanced IGBT amplifiers
2000 - USB powered FFT Analyser
2002 - USB powered Vibration Controller
2003 - Dual Coil composite Shaker Armature
2004 - 3" stroke air cooled Shaker System
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About Us
For over fifty years, LDS has specialized in high quality vibration test systems and has become a worldwide leading supplier. The 2003 acquisition of Dactron, Nicolet Technologies and Gould Instruments, has positioned us as a full line supplier of integrated solutions for the entire Physical Test and Measurement market.

Today we
- ACQUIRE 100s of channels of highly dynamic physical data
- RECORD split second transient events as well as continuous signals lasting hours, days or weeks
- ANALYZE frequency content on dynamic signals to improve the performance or quality of materials
- TEST the integrity of mechanical structures, from as small as a semiconductor to complete satellites
- REPORT results efficiently and automatically making life much easier for our customers
LDS is a true global player with four R&D sites and two manufacturing locations in Europe and the US. We serve customers through direct sales and service organizations and via local representatives in over 60 countries worldwide including a strong presence in Asia. LDS is well positioned to meet the many different application needs in the physical T&M world using a broad range of products and many years of experience in solving demanding measurement requirements worldwide. Our financial strength enables continuous reinvestment in future technology and makes us an even stronger partner tomorrow!
LDS is a member of SPX Corporation, a $4.3 billion global provider of technical products and systems, industrial products, services and service solutions. SPX has operations in more than 20 countries with worldwide headquarters located in Charlotte, North Carolina in the United States.
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