Crystal Instruments / Sentek Dynamics  

Santa Clara,  CA 
United States
  • Booth: 848


Crystal Instruments (CI) is a leading supplier of dynamic measurement systems and software for vibration testing, modal analysis, and acoustic measurements. Backed by over 30 years of engineering expertise, CI's products are used for machine diagnosis, design verification, product testing, and process improvement by manufacturers of electronic and mechanical products. 

Sentek Dynamics provides complete solutions for vibration and environmental testing. In collaboration with sister company (CI), Sentek Dynamics develops and markets a wide range of vibration test equipment, environmental test chambers, and instruments for control, data recording and analysis.

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 Press Releases

  • The GRS is a rugged, lightweight, battery powered dynamic data recorder and real-time dynamic signal analyzer with unparalleled performance and accuracy. It is ideal for a wide range of industries that require high grade acoustic and vibration measurements. These industries demand quick, easy, and accurate data recording in addition to real-time processing in the field.

    Read about how NASA will use the GRS to measure supersonic flights:

    GRS Highlights

    • A ruggedized and weatherproof enclosure.
    • Two external battery supplies guarantee 12 hours of full operation.
    • Solar panels can be used to power the GRS and charge its external batteries to facilitate continuous remote operation.
    • Four input channels are available, serviced by two 24-bit ADCs. The DSP implements patented technology (US patent no. 7,302,354) to achieve better than 150 dBFS.
    • Built-in GPS receiver allows time synchronized data sampling with up to 100 ns accuracy using Crystal Instruments’ patented (US patent no. 11,611,946) GPS time synchronization technology.
    • Equipped with cellular and satellite modules to allow remote operation.
    • Scheduling feature for full autonomous operations.


  • Premium Spider-81 Vibration Controller
    First vibration controller that directly integrates time-synchronized Ethernet connectivity with embedded DSP technology...

  • Spider-81 vibration test controllers have voltage, charge, TEDS, and IEPE inputs which are ideal for shock, vibration and acoustic measurement or general purpose voltage measurement. The internal flash memory stores test configuration data for controlling up to 64 channels simultaneously in addition to storing real-time analysis data. Multiple output channels provide various signal output waveforms that are synchronized with the input sampling rate. A bright LCD screen displays testing status information. Ten monitoring connections on each unit are used to read signals of analog inputs and outputs. Built-in isolated digital I/O and RS-485 serial ports enable interfacing with other hardware.

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