ESTECH 2018 Review

Crystal Instruments (CI) recently attended IEST’s ESTECH 2018 conference in Orlando, Florida. This conference is for leading professionals in product reliability, nanotechnology facilities, environmental testing, and controlled environment rooms (clean rooms). From various working groups, seminars, and classes, ESTECH is a great opportunity to meet and understand the changing demands in industry, academia, and government.

Read More

Operational Modal Analysis

Experimental modal analysis (EMA) is based on forced excitation tests during which Frequency Response Functions (FRFs) are measured. However, real world loading conditions often differ considerably from those used in lab testing. Since all real-world systems are to a certain extent non-linear, the models obtained under real loading will be linearized for much more representative working points. Additionally, environmental influences on system behavior, such as pre-stress of suspensions, load-induced stiffening or aero-elastic interaction, will be taken into account.

Read More

Crystal Instruments Achieves ISO 9001:2015 Certification

Crystal Instruments is proud to announce that we have successfully achieved ISO 9001:2015 accreditation by TÜV SÜD America Inc.  TÜV SÜD is one of the world's leading testing, certification, and inspection providers.

ISO 9001 is the world’s most widely recognized standard for quality management systems. It helps organizations meet the expectations and needs of their customers. The new ISO 9001:2015 standard has several benefits over the 2008 version. It puts greater emphasis on leadership engagement and helps address organizational risks and opportunities in a structured manner. Supply chain management is addressed more effectively.  

Read More

Automotive Testing Show and Conference, Mexico 2018

Automotive production is one of the most dynamic of industries in Mexico. The country has become a global player in both the automotive OEM and auto parts sectors. Many leading motor companies have made their move towards manufacturing in Mexico, so the need for vibration testing and instrumentation has increased as well. Conferences and trade shows have seen an uptick as a result, with a generation of intrigued engineers fiercely researching the possibilities and specialties of the testing and simulation industry throughout the country.

Read More

Multiple Shaker Table Systems

There are many different shaker table arrangements based on various types of MIMO testing applications. The Multiple Shaker Table System ranges from Multiple Exciter Single Axis (MESA) to Multiple Exciter Multiple Axis (MEMA) with 2 to 6 shakers involved (e.g., three axis translational shaker table, four-poster, 6 DOF Multi Axis Shaker Table (MAST), etc.)

Multi-Exciter Single-Axis (MESA) is a type of application in which multiple exciters provide dynamic input to a test item along a single axis. For cases in which two exciters are driven to a common specification with respect to both phase and amplitude, the output may be described basically in one axis of excitation. For cases in which two exciters are driven to independent magnitude and/or phase specifications, the output may need to be described in terms of a forward axis and aft axis and, perhaps, a rotational axis about the test item’s center-of-gravity (CG).

Read More

Crystal Instruments International Sales Meeting - Europe

During the second week of April, Crystal Instruments hosted an International Sales Meeting for our European distributors. With 4 employees from CI, we had over 28 people in attendance in Barcelona, Spain. Our attendees consisted of our partners in Europe: Belotti Sistemi, Akron, Kvalitest, dBVib, ViaXys, ADM, DIRA, Alava Ingenieros, MotionTech, EmTEST, THP, AcSoft, VibroAkustik, Amtest – TM Kft., Kistler Eastern s.r.o., ProgramTeh, Sartorom, Ecspdm, and Dynamic-TM.

Read More

Vibration Training Course in Gothenburg, Sweden

Kvalitest (Crystal Instruments’ Distributor for Sweden & Finland) organized a vibration training course for their customers in Gothenburg, Sweden from April 18-19, 2018.

The course presenter was Mr. José Luis López from Advensys. Mr. Lopez has extensive experience in the field of vibration testing and provides training courses all over Europe.

The training included an overview of theoretical concepts needed to understand the physical basis behind vibration testing and the equipment required. The testing technicians were provided with the opportunity to understand and perform tests according to relevant standards.

Read More

Announcing DIRA representing Crystal Instruments (Data Acquisition Products) in Spain

Crystal Instruments and Dira Serving the Spanish Territory
Dira is a Spanish company dedicated to offering digital solutions for predictive maintenance. Dira has been testing rotating machinery by operating the CoCo-80X in VDC (vibration data collector) mode with very successful results. Dira has confirmed that the CoCo-80X capabilities are sufficient in detecting mechanical failures such as: unbalance, misalignment, looseness, gear box defects, etc. The CoCo-80X has built-in electronic filters to envelope detect which are very useful to detect bearing failures in early stage.

Dira highlights Crystal Instruments’ full support by Mr. Jordi Gargallo (European Sales Manager) and Trung-Duong Nguyen (Application Engineer) to install and to use the software. The customized support offered to the clients by Crystal and Dira is appreciated by the end users of this technology.

With Crystal Instruments’ full support and commitment, Dira will offer complete predictive maintenance solutions in combination with a high level of technical service oriented to the digital transformation of the plant maintenance.

Read More

Vibration Tests for Seismic Qualification

Earthquakes are one of the most destructive forces of nature with the potential to cause devastating life and property losses. In addition to buildings and structures, equipment damaged by earthquakes may directly or indirectly generate hazards for people or the environment. For the safety of employees and the public, equipment designed to perform safety measures (e.g. shut down a reactor) or to function under certain levels of earthquakes for specified periods of time should pass a seismic qualification or a verification of earthquake resistance.

Read More

Multiple Input Multiple Output (MIMO) Vibration Control vs. Single Shaker Vibration Control

Vibration testing has been carried out since the 60’s of the 20th century. Concurrently, vibration control systems evolved into the current network-based 4th generation systems. During the last several decades, single shaker vibration testing has been performed for a wide range of industries and has contributed to the progress of modern industries. Many products have been qualified through single shaker vibration control testing to ensure their survival through launching, operating or transportation environmental conditions. 

With the development of multiple shaker table systems, the availability of Multiple Input Multiple Output (MIMO) controllers and Multiple Input Multiple Output (MIMO) vibration control started emerging a couple of decades ago. Due to the readiness of standards, (e.g., Mil STD 810G, Method 527 and IEST DTE 022 working group recommendation) MIMO Testing has gained a huge momentum in the past decade. The increased usage of multiple shaker testing systems has been adopted by not only our military and defense industries, but also NASA, automotive, and many other commercial industries as well.  

Read More