Dasylab

Manufactured by National Instruments

Sourced in Germany

DASYLab is a graphical programming software for data acquisition, analysis, and control. It allows users to create customized measurement, automation, and control applications without extensive programming knowledge.

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Lab products found in correlation

Ni usb 6341, by National Instruments (1 mentions)

2 protocols using dasylab

Mechanical Testing of PLA Cylinders and Rat Femora

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Before implantation, mechanical testing was performed using a pneumatic universal testing machine (SincoTec^®, Clausthal-Zellerfeld, Germany). The settings for the testing machine were selected with the help of the control software PneuSys^®. Vertical movements, defined as the difference between the starting versus the ending point of the force transmitting bar, were measured directly at the actuator of the testing machine being connected to the bar. The data were recorded by means of a data-logging card at a scanning rate of 200 Hz. The data were processed with a program written in Dasylab^® (Dasylab^© National Instruments Ireland Resources Limited, Provider: measX GmbH & Co.KG, Mönchengladbach, Germany). In order to reduce the data volume for post-processing, the arithmetic mean was calculated during the test for each twenty measurement values. This reduced data set was then read out in the Excel^® program for further post-processing. Independent measurements were performed for three PLA cylinders and three rat femora. The axial compression test was performed with a preload of 10N and a linear load increase to failure (or set force) at a frequency of 0.02 and 0.03 Hz.

Lauer A., Wolf P., Mehler D., Götz H., Rüzgar M., Baranowski A., Henrich D., Rommens P.M, & Ritz U. (2020). Biofabrication of SDF-1 Functionalized 3D-Printed Cell-Free Scaffolds for Bone Tissue Regeneration. International Journal of Molecular Sciences, 21(6), 2175.

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Isometric Force Transducer Analysis

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Voltage signals from isometric force transducers were digitized (NI USB-6341, National Instruments) with data acquisition occurring at 10Hz using multichannel data-integration software (DASYLab ®, National Instruments). A segment of 4096 consecutive data points of steady state LARC tension data were normalized to the maximum tension during this time (example tracing, Figure 1A). A Hanning window was applied to filter out very low frequency signal (i.e. stress relaxation) and prevent discontinuity artifact during FFT analysis. FFT was then performed using Excel Analysis ToolPak (Microsoft Corp). Frequency domain output was in ~2.4mHz intervals. A frequency range of interest (0.005–0.200 Hz or 0.3–12 cycles/min) was determined by preliminary data of carbachol-induced LARC in human DSM (not shown) and prior studies of DSM LARC in both humans and other species [2 (link),1 (link),15 (link)–18 (link)]. A real signal was defined as having an associated amplitude on the power spectrum which was the maximum as well as being greater than 2 standard deviations (SD) above the mean amplitude over the aforementioned frequency range (example spectrum, Figure 1B).

Colhoun A.F., Speich J.E., Cooley L.F., Bell ED I.I.I., Barbee R.W., Guruli G., Ratz P.H, & Klausner A.P. (2016). LOW AMPLITUDE RHYTHMIC CONTRACTION FREQUENCY IN HUMAN DETRUSOR STRIPS CORRELATES WITH PHASIC INTRAVESICAL PRESSURE WAVES. World journal of urology, 35(8), 1255-1260.

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