RAM-5000 3C

 
RAM-5000 Computer Controlled High Power Ultrasonic System
  RF Burst Power to 5 kW to drive EMATs or other low frequency transducers.
  Complete measurement systems can be configured with up to 3 Gated Amplifiers.
  Modular construction allows instrument configurations specifically for unique applications.
  Computer Control using a Digital I/O Card or an Optional IEEE-488 Interface.
  Superheterodyne Receiver, Phase Sensitive Detection, and Gated integration provide superb
      analog signal processing.
  Determination of both signal amplitude and phase enables sensitive and accurate
     measurements of changes in ultrasonic velocity and attenuation.
  Measurement of acoustic resonance frequencies using sampled CW technique.
  
  The RAM-5000 is a modular ultrasonic system designed to satisfy the needs of the acoustic
  researcher in materials science or advanced NDE. Its functionality is similar to the RAM-10000
  but much of the circuitry has been redesigned for improved performance, the packaging is more
  robust, and care has been taken to satisfy international standards for electronic instrumentation.
  The RAM-5000 will also accept multiple gated amplifiers so that a wider frequency range can be
  covered by a single instrument.
 
  Its purpose is to transmit RF bursts of acoustic energy into a test piece, receive signals following
  the burst, and manipulate and analyze these signals in various ways. Examples include the
  determination of acoustic attenuation, velocity, stress, material texture, and a number of other
  physical properties. Gated- amplifier, high-power outputs are obtainable over a frequency range
  far in excess of one decade. Typical high-power (5KW) frequency ranges are 0.05 to 5 MHz and
  0.5 to 7 MHz. At 1KW these ranges are extended to ~5 and just under 20 MHz respectively.
  The high power is particularly valuable when using electromagnetic acoustic transducers (EMATs).
 
  Various versions of the instrument may be chosen to meet the user's specific needs.
  The most popular configurations are the pulser-receiver and the full measurement system.