Crystal Instruments will be exhibiting at the Advanced Engineering show located at Birmingham, UK from October 30-31, 2019. Our products will be displayed in the Alphatech Ltd booth.Read More
How do you select the reference location for a modal test? What needs to be considered? Let's discuss this to see how to think about this.Read More
Join Crystal Instruments in Seattle, Washington from October 8-9, 2019 for an Experimental Modal Measurement & Analysis Seminar featuring Dr. Pete Avitabile.Read More
Is it really necessary to reject a double impact?
Are they really a problem?
Let's talk about this.
I know that many people will say that a double impact is totally unacceptable. It is not the optimum condition for collecting impact data for a modal test. However, under certain circumstances, it may be reasonable to accept a measurement that has resulted from a double impact. Let's discuss this problem that may arise when a double impact occurs and explain how to determine if the measurement is acceptable or not.Read More
The Society of Automotive Engineers (SAE) held the 2019 Noise and Vibration Conference in Grand Rapids Michigan this year. The conference, which is a biennial event, took place from June 10th to the 13th and drew roughly 1,000 engineers focused on NVH (Noise, Vibration and Harshness) and sound quality measurements. Crystal Instruments was proud to take part in sponsoring the conference this year.Read More
Crystal Instruments is pleased to offer 15- or 30-day rental systems, providing users with an easy and accessible option to try one of our latest systems. Users can access the full power of Crystal Instruments’ Engineering Data Management (EDM) software along with a full featured hardware system.
Visit www.crystalinstruments.com/ci-rentals to learn more.Read More
Combined vibration testing is gaining prominence due to the advancement of test equipment technology driven by the need to accomplish simultaneous testing of multiple measurement quantities. Vibration testing combined with temperature, humidity or a combination of other quantities has enabled the creation of test environments closely resembling typical scenarios in which DUTs operate.Read More
I ran one test with an x-excitation and can see some modes and another test with a y-excitation and see some different modes. Could I use an oblique angle instead?
Well, that's a very good question. Its one that comes up often in terms of running modal tests with a shaker excitation. Of course it is totally acceptable to run one test with a shaker at some oblique angle to the structure. But the only thing we need to be careful about is to assure that we don't select the reference point at the node of a mode.Read More
The 2019 IEST ESTECH conference was held in Las Vegas, NV from April 29 through May 2nd, 2019. This year, Dr. James Zhuge provided a technical presentation explaining Crystal Instruments’ combined Temperature, Humidity, and Vibration (THV) Control system. Dr. Zhuge provided the opportunity for attendees to gain first-hand knowledge regarding Crystal Instruments latest technologies offered for environmental testing systems. The Crystal Instruments THV system provides one convenient user Interface to set up schedules for temperature, humidity, vibration, and more.Read More