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
Apex Series Calibration Kit
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The APEX Series Calibration Kit provides calibration personnel the ability to re-certify the calibration of the APEX SL or APEX PRO control systems in-house. A simple Windows based program and an RS232 digital interface to a Keithley multi-meter, goes through system checks and verifications, and provides a detailed printed report of pass/fail, actual and expected values, and tolerances for each parameter checked.
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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
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
Hybrid Slip Table Assemblies
HST
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UD’s HST Series features a highly damped, rigid reinforced concrete-filled base, permanent positive mechanical alignment, and our exclusive Integrated Guidance and Isolation System (IGIS).
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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
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
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
Replacement Power Amplifiers
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Unholtz-Dickie offers a full line of high-performance Class D switching power amplifiers. These amplifiers, used in UD’s new shaker systems, are offered as replacements for older, water-cooled vacuum tube amplifiers or bipolar transistor amplifiers.
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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
Apex Series Hardware
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APEX SL and APEX PRO advanced architecture incorporates multiple digital signal processors from ADI. The versatile and proven SHARC and Blackfin processors are the industry standard for high performance and power efficiency. This powerful control system hardware set is used exclusively for control loop processing and host communication, assuring accurate real-time control and simultaneous data acquisition, while all graphics related processing is reserved for the host computer’s multi-core processor.
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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.
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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
Slip Tables
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Unholtz-Dickie offers three configurations for fully integrated slip table assemblies for vibration testing; the ST Series, HST Series and the CSTA Series. Horizontal slip tables are used for three-axis sequential testing (x, y, z axes) or used when it is necessary to maintain product positioning with respect to gravity.
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Product
Transducer Calibrator Systems
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Unholtz-Dickie Transducer Calibration Systems have earned their place in industry as the standard for calibrating accelerometers and velocity transducers. The Model 680C is UD's latest generation of an automated transducer calibration system, utilizing the expanded features of the i5 based APEX SL-C Windows vibration control system.
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Product
Acquire, Analyze, Import Vibration Data
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Reproducing actual field vibration data is a key feature of the APEX Series Vibration Controllers! It provides four distinct and important choices for analyzing and importing data for creation of random, transient shock, and time replication acceleration control (TRAC) tests. Collecting data and importing the information into the controller is accomplished by using the Signal Analyze/Transient Capture and Data Acquisition modes, or by importing stored ASCII file data. The Import Data Manger provides guidance and extensive editing options for optimizing the new test. The resulting test reference (time or frequency spectrum) can then be performed at the vibration test system.
