Labview monitors

Laborelec s future realisations are vibration analysis, control of inspection robots, and all types of system monitoring. LabVIEW will be used as common tool for developers for the coming years. The synergy effect of a common language for everything concerning acquisition, analysis and processing of data will be beneficial for the whole company. 

Signals from detectors were monitored on-line by Virtual Bench-Lab View computation programs or labVIEW 7 programs. Treatments of data were done using Origin 6.1. 

Both the vertical and horizontal sphere displacements can be measured using a photoelectric sensor. During the wear experiments the fiictional and the normal forces, the vertical (linear wear) and horizontal sphere displacement, as well as the electrochemical parameters (current and potential) is continuously monitored using a Macintosh computer ruiuiing on LabView-Language-based software developed in LMCH of the EPFL. 

Labview software was specially developed to generate optimised phase holograms that couple the specific RF-modulated wavebands back into the fiber collimator, and at the same time equalize their intensities by changing the maximum phase levels applied to the different pixel blocks. The selected wavebands were then routed via a circulator to a 22-km high dispersion fiber (HDF) of dispersion coefficient 382.5 ps/nm and insertion loss 4.6 dB. An optical spectrum analyzer (OSA) was used to monitor the spectrum detected by a photodiode built in the Network Analyzer, as illustrated in Fig. 4. 

Figure 2 Snapshot of the console window of the monitoring and control interface developed in LABVIEW. The peaks represent online calibrations of the nitrate and nitrite measurements against a standard sample (100 ppm or 10 ppm).

Experimental setup Using EEG data monitoring equipments from Nihon Kohden, an EEG cap with 19 chan-nels/electrodes were placed on the scalp of a subject based on 10-20 electrode placement systems. The robot is connected wirelessly to the EEG machine and a computer. Labview program from a computer was used to send signal to control the robot and at the same time create trigger data to EEG machine. The signal sent wirelessly to the robot via Xbee connection while connection to the EEG machine is via NI-USB6008. 

The dynamics of the write operation were monitored with the circuit shown in Figure 7.25a, which amounts to a bipotentiostat familiar to electrochemists. The S electrode is biased by the write voltage, and the S and D currents are monitored independently and simultaneously. Control of the D voltage permits different bias values for and VsG, and the entire experiment is conducted by a data acquisition system with LabVIEW software. The SG current for PQT and PVFc devices, both containing PEO-EV, is shown in Figure 7.25b for a VsG =-h3 V write pulse lasting 2 s. " ... 

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