Unholtz-Dickie Corporation
The company is comprised of engineers driven by a commitment to build the most advanced vibration test systems in the world. This has evolved into an organization that leads the Vibration Test Industry not only in terms of product innovation & development, but in product performance, reliability, and technical service and support.
- (310) 347-4120
(310) 316-0275 - (203) 265-2690
- info@udco.com
- 6 Brookside Drive
Wallingford, CT 06492
United States of America
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Product
Electrodynamic Shaker Systems
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A test machine that uses magnets and electricity to shake products.
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Product
Long Stroke Thrusters
6X Thruster Systems
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The SA15-6X-S is regarded as an industry standard Long Stroke Thruster Test System. It is widely regarded as the workhorse for production testing of automotive AIRBAG sensors by leading suppliers of automotive airbags and associative control modules. The SA15-6X-S was designed to produce highly accurate and repeatable acceleration pulses in the horizontal plane; pulses such as classical haversine and half sine waveforms, and for simulating actual crash waveforms imported as ASCII amplitude/time history or as a transient capture. The long stroke capability and powerful SA Series power amplifier can reproduce crash waveforms with velocity changes up to 17 MPH.
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Product
Electrodynamic Shaker Systems
High Frequency Vibration Testing
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Typical electrodynamic shakers have a usable frequency range up to 2,000-3,000 Hz. For higher frequency applications, UD engineers have developed two different shaker systems optimized for sine & random vibration tests up to 5,000+ Hz. and extreme SRS shock events out to 10,000 Hz.!
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Product
Slip Table Assembly
CSTA Series
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Unholtz-Dickie introduced the Combined Slip Table Assembly (CSTA) in the late 1960''s to meet the demand for positive mechanical alignment between the shaker and its companion horizontal slip table. The challenge was to achieve this positive, permanent alignment feature without requiring an expensive seismic mass in the vibration lab floor. The original CSTA design has been continuously improved over the years and has now become the industry standard for permanently aligned, integral reaction mass slip tables.
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Product
Long Stroke Thrusters
LS-Series
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The LS Series Long Stroke Thruster Test Systems are highly regarded as the industry standard for long stroke transient testing. This equipment is used in the design and production test of automotive airbag sensors by leading suppliers of automotive airbags and associative control modules.
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Product
Long Stroke Thrusters
Seismic Test Systems
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Unholtz-Dickie offers the world’s first all air-cooled, electrodynamic long-stroke testers for telecommunications, earthquake simulation, and transportation applications. Up to 2,300 lbs (1,040 kg) of payload can be supported on a 48x48 inch (1.2 x 1.2 m) footprint on either the slip plate of the horizontal LS12H thruster or the bearing-guided head expander of the vertical LS12V unit. Both are driven by the highly reliable SAI120 SiC amplifier with an integrated switching cabinet for either vertical or horizontal testing. And because it’s an electrodynamic shaker, relatively high frequencies of up to 1,000 Hz can be achieved.
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Product
Head Expanders
Standard
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These light-weight magnesium head expanders provide reliable and effective solutions for any large, broadband package testing needs.
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Product
Electrodynamic Shakers
R-Series
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The R-Series vibration test systems are designed to provide reliable performance for medium and high force applications. The R-Series Shaker Armature incorporates a multi-ribbed design, which provides maximum stiffness and minimum weight, resulting in a high acceleration to specimen weight ratio and impressive acceleration and frequency performance.
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Product
Command Link
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The APEX Series Controllers offer an optional RS232 Amplifier/Shaker interface and a software command/status panel to operate UD’s newly enhanced SA and SAI Series amplifier/shaker systems. The SA-Command Link provides identical functionality as the standard SA Amplifier front panel switch buttons, LED status indicators and current/voltage meters. In addition, it provides a Power Save selection to automatically power down the UD SAI Amplifier/Shaker system after a test has finished or aborted, and current / voltage limits can be set to abort the test for added system / specimen protection. Now the complete UD test system can be initiated, monitored, and controlled from one convenient location.
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Product
Apex Series Software
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An extensive library of APEX Series vibration control software modules is available with an unprecedented number of functions and features to satisfy basic testing needs, as well as advanced applications, data acquisition, and specialized custom testing.
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Product
Instrumentation
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Unholtz-Dickie designs and manufactures a variety of transducer signal conditioners, accelerometers, remote charge preamplifiers, vibration monitors & limiters, transducer testers, buffer amplifiers and other special purpose instrumentation accessories for vibration testing control and measurement.
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Product
Head Expanders
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Unholtz-Dickie offers a wide range of head expanders and head plates to maximize the versatility of any electrodynamic shaker. The head expanders are manufactured from light-weight magnesium alloys, providing high strength-to-weight ratio.
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Product
Electrodynamic Shaker Systems
Model T4000 / T5000 / T5500 Series
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The T4000/T5000/T5500 Series of vibration test systems provide extreme test level requirements. These systems are used in a variety of industries requiring high force output, including satellite, communication, and space launch vibration and PYRO shock applications.
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Product
Sine Monitor Analysis Response Tool
SMART tool
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The Sine Monitor Analysis Response (SMART) Tool is a powerful software utility available with all new APEX SL and APEX PRO Control/Analysis workstations. The SMART Tool not only provides the standard capabilities of a stand-alone sinusoidal oscillator, but also provides measurement and spectrum displays of the resulting vibration when driving the shaker. These features are extremely useful in establishing system confidence checks of the complete vibration test system, performing fixture and test specimen vibration surveys, troubleshooting system faults, and aiding in preventive maintenance.
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Product
Long Stroke Thrusters
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UD Long Stroke Thruster Systems are highly regarded as the industry standard for long stroke transient testing featuring large displacements from 6 to 24 inches (152 - 610 mm). This equipment is used in the design and production test of automotive airbag sensors by leading suppliers of automotive airbags and associative control modules. A specially configured 12 inch LS Thruster is available and used primarily by Telecommunications Companies for earthquake simulation and transportation replication applications.
