The Ethernet based network structure of Crystal Instruments Spider Systems provides the maximum flexibility and scalability for the configuration of test and measurement instruments in the lab environment. With the implementation of IEEE 1588 Precision Time Protocol (PTP), the same Ethernet connection used for data transmission also provides time clock synchronization. This advanced technology is applied to CI Spider systems, ensuring the possibility of nearly any topology of device and computer connections. In theory, the user will be able to access the test instruments on the network at any time and any distance, with electrical physical limitations as their only limit.Read More
A new software release of EDM 7.1 is now available from Crystal Instruments. This new updated version of Engineering Data Management Software (EDM) provides users with convenient improvements and enhancements to the vibration control software (VCS). EDM 7.1 also supports the elegant and powerfully updated new versions of Spider hardware.Read More
Crystal Instruments (CI) is proud to announce that we reached an agreement with Alava Ingenieros (locations in Madrid, Barcelona, Zaragoza and Lisbon) for the distribution of our products in Spain and Portugal.
Álava Ingenieros – Grupo Álava has been providing high technology solutions since it was founded in 1973. The company focuses on the following technological fields: sensors, data-acquisition, predictive maintenance, calibration, testing, security, communications, imaging, photonics and nanotechnology, and environmental, marine and terrestrial technologies. They provide value-added services such as technical advice, integration, configurations, commissioning, training, support and post-sales service. Álava Ingenieros seamlessly connects manufacturers, systems integrators and end-users to provide technology that contributes to social development.Read More
Summertime…birds chirp in the warm early mornings, crickets sing late into the evening haze, and the Vibration Institute holds their Annual Training Conference and Expo! This year’s exhibition was hosted by VI as well as Reliabilityweb.com, the world’s most trusted source of the latest reliability and uptime maintenance news and information in the Predictive Maintenance and Reliability Industries. As organizers of the expo, they even hosted numerous interesting live-streamed interviews with industry professionals right on the exhibit floor.Read More
Stability is an important part of ensuring operability of power generation systems. Large transients can cause power systems to become unstable and can eventually lead to blackouts. Power systems need to be designed to withstand large disturbances and maintain stability under changing operating conditions. Devices such as the generator automatic voltage regulator (AVR) and power system stabilizer (PSS) are widely used to manage these system instabilities. These control devices can be attached to power generation systems to help improve stability.Read More
The EDM Modal MIMO Stepped Sine Testing option provides multiple Stepped Sine excitations to measure Frequency Response Functions (FRFs). The MIMO Stepped Sine test runs with one frequency at a time, thus providing a high signal-to-noise ratio of sine excitations. The drive voltages can be specified, or input forces are controlled to provide the proper excitation levels for the structure under test. During MIMO Stepped Sine testing, a multiple number of sweeps with different phase conditions are implemented to make the MIMO FRF measurement possible. This process is equivalent to the randomized phase situation of MIMO FRF testing using uncorrelated random excitation methods. An accurate sine tracking filter provides leakage-free response spectra. A system identification step prior to the stepped sine test helps control excitation levels.Read More
In 2010, Crystal Instruments introduced the fourth generation of vibration controllers, the Spider-81 and Spider-81B. Through continuous revisions in the past years, these flagship models have improved and evolved into the most reliable vibration controller offered in the market. Now in 2018, Crystal Instruments is proud to announce a new edition of the Spider-81 and Spider-81B.Read More
What is WBV used for?
Many industrial workers are subjected to whole-body vibration on a regular basis, which can have a noticeable effect on their health. Employers are expected to provide an accurate risk assessment of whole-body vibrations resulting from use of their equipment. WBV measurements are therefore necessary to provide access to vibration emission data. The availability of accurate vibration emission data is essential to the process for employers completing a vibration risk assessment.
For the third year in a row, Sentek Dynamics and Crystal Instruments attended the Automotive Testing Expo in Stuttgart, Germany. This event is regarded as the world’s largest vehicle, component, validation technology, and services exhibition that featured more than 400 exhibitors with over 9,000 attendees. It was very exciting to have the opportunity to interact with the industry and display our products to a global audience.Read More
Crystal Instruments pioneered the concept of using Dual ADCs at each input channel. With the two ADCs working in parallel and set to different voltage ranges, Spiders system can measure low amplitude variations within a high amplitude input signal with great amplitude resolution and accuracy.
With advancements in electronic components and manufacturing, electronic components with lower noise have evolved. Crystal Instruments integrated the advances in electronics into the Spider systems to achieve an additional 10 dB in dynamic range, extending the dynamic range of Spider systems to 160 dBFS. An experimental analysis highlighting this new achievement is published in this article.Read More