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
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.
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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 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
Electrodynamic Shaker Systems
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A test machine that uses magnets and electricity to shake products.
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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
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
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
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
Electrodynamic Shakers
H-Series
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The H-Series provides an intermediate force range of vibration test systems consisting of the SC Series Class D power amplifier with integrated DC field supply, H560B electrodynamic shaker and a remote cooling blower. Systems are provided as complete packages including EMI shielded console with 3-phase line filtering, interface cabling, integrated safety interlocks, and full featured interface panel for the power amplifier. All systems are direct coupled for maximum rated performance and require no transformer reconnections or switching circuits.
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Product
Word Report Generator
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The Automatic Report Generating Utility is now included with each new APEX SL or APEX PRO Vibration Control System. This highly desirable feature provides an automatically generated test report in an MS Word document.
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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
Slip Table Assembly
ST Series
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The ST Series Slip Table Assembly is one of three base configurations offered by Unholtz-Dickie for its vibration test systems. It is ideally suited for sequential 3-axis test capability with minimized cross axis response; for testing heavy, oversized, or non-symmetrical loads; and for products where orientation with respect to gravity is necessary.
