ELECTRO-DYNAMIC VIBRATION TESTING

LDS V964 WITH INTEGRATED SLIP-TABLE

    • Vibration Research VR 9500 controller 8 channels
    • 18000F-lbs Sine & Random
    • 36000F-lbs 1/2 Sine shock
    • Usable frequency: DC -2500 Hz
    • Continuous displacement: 1.5 in

ETS M437A SHAKER WITH GT800M SLIP TABLE

    • Vibration Research VR 9500 controller 8 channels
    • Force, Sine and Random: 8800 lbf
    • Force, shock (6 MS): 17600 lbf
    • Usable frequency: DC -2500 Hz
    • Continuous displacement: 3.5 in
    • Total harmonic distortion at rated output: < 0.5% from DC (0.1 Hz) to 500 Hz;< 1.0% from 500 to 5,000 Hz

UNHOLTZ DICKIE 206

    • Vibration Research VR 9500 controller 8 channels
    • Force, Sine and Random: 1700 lbf
    • Force, shock (6 MS): 3400 lbf
    • Usable frequency: DC -2500 Hz
    • Continuous displacement: 1.0 in

MRAD SHOCK TABLE

    • Vibration Shock Table
    • 2ms to 20ms Delta V
    • 50G @ 20ms
    • 250G @ 2ms
    • 340G @ 3ms

Test Modules

SINE – Run swept and/or fixed-frequency sine wave vibration tests, with control of acceleration, velocity, and displacement.

SINE ON SINE – Run mixed-mode tests with up to 32 sine tones simultaneously.

RANDOM – Run Controlled spectrum random tests (tests with a spectrally shaped gaussian amplitude distribution).

iDOF® – Prevent under or over testing on high value products where tight tolerances and short duration random testing is required.

SINE ON RANDOM – Run mixed-mode tests with sine tones superimposed on a random background.

RANDOM ON RANDOM – Run controlled spectrum random tests with swept random “tones” superimposed on a random background.

KURTOSION® – Re-introduce the high acceleration peaks back into your random vibration tests. Our patented -solution to when your in-service vibration environment is not Gaussian.

RANDOM IMPORT – Import your time-based vibration data recording and convert to a power spectral density curve with breakpoint table.

FATIGUE DAMAGE SPECTRUM – Measure your products fatigue and calculate its lifespan. Commonly used life acceleration techniques are applied to shorten test time.

SHOCK – Run standard classical shock pulses as well as (optional) user-defined or SRS synthesized transient pulses.

SRS – Perform Shock Response Spectrum (SRS) analysis. Run a shock pulse defined by a frequency vs. G peak table. Many different waveform synthesis generation techniques included.

TRANSIENT CAPTURE – Capture a transient waveform for post process. Use alone for data acquisition, or with SRS for Shock Response Spectrum analysis.

FIELD DATA REPLICATION – Reproduce, in your test lab on your shaker, the actual acceleration waveforms you measure in the field. The controller automatically compensates for shaker and fixture response.

EARTHQUAKE – Run a shock pulse defined by a frequency vs. G peak table. Many different waveform synthesis generation techniques included.

HALT/HASS VIBRATION TABLE VALIDATION:

WHAT IS THE TRUE MAGNITUDE OF FORCE THE DEVICE UNDER TEST EXPERIENCES

    • Determine how the energy is distributed across the table compared to the control accelerometer located at the center bottom of the table
    • Validate the Power Spectral Density in each Quadrant of the Table
    • Validate the proper location to place the Device Under Test
    • Validate the proper fixture configuration for correct energy transfer to the Device Under Test
    • Validate detailed vibration data of subcomponents throughout the Device Under Test
    • Identify unexpected movement of electronic components from resonance frequencies
    • Compare the Calibration data with Validation Data
    • We use ISO 17025 Calibrated Vibration Research VR 9500 controllers – 16 channels
    • We use ISO 17025 Calibrated Single Axis and Triaxial Accelerometers to capture data

TEMPERATURE/ HUMIDITY TESTING

    • Watlow F4T controllers
    • Specview Software
    • Temperature: -80C to +177C
    • Humidity 5-98%RH
    • Product Control Loop
    • 1.2cuft, 3 cuft, 8 cuft, 10 cuft, 12 cuft, 16 cuft, 32 cuft, 48 cuft, 64 cuft and Walk-In 1200 cuft controlled environment

SALT FOG/ SPRAY/ CORROSION TESTING

    • Available Internal Dimensions 3.4 cuft, 36 cuft
    • Custom 8′ Tall Salt Fog chamber
    • MIL-STD-810G 509.5
    • ASTM G85
    • Associated DX-9204 Salt Fog
    • ESSP-SS540 Salt Spray
    • Custom Salt Fog Chamber 2′ Length X 2′ Width X 8.5′ Tall inside Thermotron F12-CHV-5-5
    • Temperature/Humidity Chamber

TEMPERATURE/ ALTITUDE/ SPACE SIMULATION TESTING

    • Temperature: -70C to +177C, 100,000 ft. Altitude
    • Temperature: -70C to +170C, 500,000 ft. Altitude
    • Product Control Loop
    • Rapid Decompression
    • 3 cuft controller environment
    • 48 cuft controlled environment

Tenney Space Jr

    • Temperature Range: -70 to +170 Deg. C
    • Watlow F4T controller
    • 500,000 Ft. W/Mechanical Trap (2.66X10-7 Torr)
    • 100,000 Ft. W/LN2 Trap

HALT/ HASS TESTING

The Qualmark Typhoon 4 is designed specifically for the task of performing Highly Accelerated Stress Screening (HASS) and HALT on large products. Tthe 48″ x 48″ vibration table is capable of supporting hundreds of pounds of products and fixturing, and delivers more energy in the lower frequency ranges of today’s Surface Mounted technology products.

    • 2 grms to 80 grms 6 DoF Random Vibration X, Y, Z, Pitch, Roll &Yaw
    • Product control vibration
    • Temperature -100C to +200C at 60C per minute change rate
    • Product control temperature
    • Spectrum Analyzer 8-16 additional accelerometers
    • Triaxial accelerometer monitoring
    • HALT/HASS 3.0 with Humidity
    • Available chambers: 4.0, 3.0, 2.5, 2.0
Contact us to learn more about our custom test equipment!
 

Testing Equipment

H&H Environmental Systems offers a variety of testing equipment available for rent or sale. Contact us for inquries on any of the machines listed or to request custom equipment.

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