Crystal instruments
Crystal Instruments designs, produces, sells, and services hardware and software for machine vibration monitoring, dynamic measurement and environmental testing.
- 408-986-8880
- 408-834-7818
- info@go-ci.com
- 2090 Duane Avenue
Santa Clara, CA 95054
United States
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Multiple-Input Multiple-Output (MIMO) Sine Test
EDM Modal Sine Testing includes a dedicated test setup and operation process flow using a single or multiple modal shakers outputting a sine wave to acquire FRF signals. The Source Output type is either Swept sine or Stepped sine. The sweep mode can be linear or logarithmic. The FRF signals of each measurement DOFs with respect to defined reference DOF will be constructed. The output drive level can be defined to run the test under no control strategy, or the response of a control channel can be specified to run the test in a closed loop.
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Standard Modal Analysis
EDM Modal Standard Modal Analysis provides the user with a complete arsenal of tools, from FRF data selection and parameter identification to results validation and mode shape animation.
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Dynamic Signal Analyzer & Data Recorder
Spider-20
The Spider-20 series of products are compact yet powerful data acquisition and dynamic measurement systems. These units provide four 24-bit precise high-fidelity input channels, and a unique software-selectable tachometer-input/signal-source output channel. Each input is individually programmable to accept AC or DC voltage or output from an IEPE (ICP) sensor with built-in electronics. Input channels can be programmed to sample up to a rate of 256 kHz. The Spider-20E is a small scale (5 ⁵/16 x 4 ⁵/16 x 1 ⁵/16 inch) device weighing only 18 ounces. This handheld unit features three push-button controls and five LED status indicators. This little powerhouse can run over 6 hours on its internal rechargeable battery which can be replaced in the field with a backup battery.
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Temperature Measurement System
Spider-80Ti
The Spider-80Ti is a front-end from the Spider-80Xi hardware platform that enables temperature measurement. Spider-80Ti supports temperature measurements from Thermocouples and RTD (Resistance Temperature Detector) sensors.
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Structural Testing Application Examples Using EDM Modal
Illustrated below are some customer applications in varying industries who are using the hardware and software by Crystal Instruments to analyze and understand the structural properties of their test specimen(s). Analyzing the modal characteristics namely natural frequencies, damping and mode shapes of the test unit further helps in improving the design to enhance the mechanical behavior of the test unit.
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MESA Vibration Control
MESA tests are specifically required when the unit under test is too heavy or too big and exceeds the capabilities of a single shaker. In a MESA application, multiple shakers provide excitation to the test specimen in a single axis. Different relations like same magnitude and phase for drives, different phase for drives, different magnitude and phase for drives, can be set for this MESA test.
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Route Based Vibration Data Collector
The Crystal Instruments CoCo series are portable devices for vibration monitoring and predictive maintenance applications. The system consists of a CoCo analyzer and the Engineering Data Management (EDM) software. The CoCo is used to make field measurements and the EDM software in Vibration Data Collector (VDC) Mode is used to setup the CoCo hardware and define routes before field measurements, and to download data from the CoCo to analyze and archive afterwards.
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Real Time Digital Filters
Real Time Digital Filters can be used to filter a measured signal in real time. Filter characteristics can be defined by the user to meet the requirements of a specific application. Real-time digital filters are applied in the data conditioning phase. The filters are designed with a graphic design tool and then uploaded to the front-end for real-time calculation. The graphic design tool defines the filter performance vertical axis with a dB scale. The horizontal axis is defined as relative frequency.
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Single-Axis Shaker Vibration Testing
Modular Vibration Control Systems - Scales up to 512 Channels
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512 Channel Systems
Spider-80X/Spider-80Xi
The Spider-80X is designed for applications in three fields: dynamic data acquisition, vibration control, and machine monitoring. Each front-end features eight analog input channels and two channels that may be software selected as analog outputs for vibration control or tachometer inputs for the analysis of rotating machinery.
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Vibration Diagnostics System
VDS
The Vibration Diagnostic System (VDS) is a vibration data management system designed specifically for the machinery Predictive Maintenance (PdM) community. It harnesses the graphic display capabilities of Crystal Instruments EDM Software for the work of machinery vibration analysts. It allows the user to quickly get to the data for a machine of interest and displays that data in the familiar Tri-axial or Single Axis view. Users can quickly compare other data from the same machine, quickly navigate back into the historical data of the machine, and quickly compare the data to that of other machines in the database. The software supports the construction of Average (a.k.a. baseline) data for a class of machines and allows easy comparison to that data as well. A full suite of cursors designed specifically for PdM analysis is provided for inuitive user interaction with the data.In addition to great graphics, an extensible machine modeling system was developed specifically for vibration analysis. VDS allows users to model machines based on the elements of the machine that can contribute to the vibration energy of the whole. Model bearings, rotors such as motor bars, couplings such as flexible and fluid couplings, account for slip in fluid couplings, model gears and pulley systems, and model turbines by accounting for each stage. The system is wide open, users can create new elements to use within a system. Users that may not want to do all that are provided with a comprehensive library of machine components such as AC and Induction Motors, Couplings, Gears, Pulleys, Pumps, and other components. Single and double gear shafts allows users to model many kinds of gear boxes with an unlimited number of stages. This ability alone lets users model their machines to view and use to keep track of vibration pickup locations, record the forcing frequencies of each part of the system, and attach attributes such as manufacturer and other part information.
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Multiple Shaker Control
EDM Multi-Shaker Control (MSC) is a software option included in the EDM testing package along with VCS. Multiple Shaker Control provides one centralized interface to interact with multiple controllers running separate tests at the same time. Multi-shaker controllers are not time synchronized unlike in MIMO VCS, in which all drives are time synchronized.
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Engineering Data Management SOoftware
EDM Modal
Engineering Data Management (EDM) is a PC-based software program designed for real-time data management and processing. This easy-to-use, Windows-native software manages the communication between the PC and all Crystal Instruments hardware platforms. EDM Modal is a complete Modal Testing and Modal Analysis suite for Experimental Modal Analysis (EMA). EDM Modal was developed based upon the sophisticated technologies of modern modal analysis theory and technique. With its intuitive controls and powerful features, EDM Modal is the ultimate tool for modal analysis applications. An intuitive interface allows users to manage highly complicated tests that can involve hundreds of measurement points and multiple excitations. This interface also allows for simple tests to be conducted quickly and with little effort. Regardless of how complicated the modal test is, EDM Modal provides the exact and precise tools required to achieve your goal.
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Chamber Controller Software
EDC (Embedded Device Control) is specifically designed software for Sentek chamber system controllers running Temperature and Humidity environmental tests. The EDC software features an intuitive interface, a powerful data review function and live data viewing. The combined EDM controller software provides one central location to set up parameters and a schedule between all three environments, with or without a connected controller. The powerful import and export features allow users to easily transfer test configurations between computers.
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MIMO Vibration Controller
Spider-80M
The Spider-80M platform is based on the efficient Spider-80Xi architecture and is dedicated to MIMO VCS control and MIMO structural testing applications. Each Spider-80M chassis features 8 outputs capable of carrying out 6-degree of freedom MIMO testing. One Spider-80M chassis and multiple Spider-80Xi chassis can chain together to form a very large system with up to 504 input channels.
