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
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
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
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
Head Expanders
Structure Guided
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To test large, heavy packages, the Guided Head Expanders provide additional restraints and load support to handle tough transportation and other challenging test profiles.
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Product
Vibration Control & Analysis Systems
APEX Series
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The UD APEX Vibration Controller is now available with up to 32 input channels. Two hardware configurations are offered, the popular APEX SL with 4-16 channels, and the all new APEX PRO with 20-32 channels (both configurable in 4 channel increments). Each unit offers the latest technology in digital signal processing and shaker control algorithms providing real time vibration test control for Random, Sine, Shock, Resonance Dwell, SRS, Random on Random, Multi-tone Sine on Random, Multi-Sine Control, TRAC (time replication acceleration control) testing and Transducer Calibration, as well as extensive data acquisition and analysis. The vibration controller modular software may be initially customized for specific applications or easily expanded in the future without performance penalties. The vibration controller software provides an abundance of comprehensive features that ensure simple, safe, accurate and reliable vibration testing.
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Product
Induct-A-Ring Shaker Systems
T2000 Series
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The T2000 Series of vibration test systems is designed to meet the ever-changing challenges of today’s moderate to extreme level test requirements. The T2000 Series is used by many different industries with a proven track record of unmatched and as yet unchallenged performance and long term reliability.
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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
Head Plates
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For low-frequency testing, a head plate provides a large mounting surface at an economical price and is recommended for testing multiple items with low center-of-gravity.
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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
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
Electrodynamic Shakers
S-Series
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The S-Series Vibration Test Systems cover a wide range of force output [300 to 6,000 lbf (1.3 - 26.7 kN)] in support of small to moderately large payloads. The S-Series shakers are supplied with SC Series power amplifiers, featuring ultra-rugged Silicon Carbide MOSFET output transistors.
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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
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
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).
