Instruments for Electric Measurements

Sensor signals can be measured by means of standard instrmnents, of course. Indeed, for testing it is useful to have an oscilloscope and a digital voltmeter. On the other hand, it is better to do sensor measurements by means of a somewhat modified computer. Signal processing facihties would be available, and graphical representation would be included. 

Digital input/output terminals are the basis for cooperation of sensor and data acquisition cards. A typical process of cooperation is to start the measurement of an external instrument by a digital trigger puke from 

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Figure 10. Schematics of the experimental setup for intracavity laser absorption spectroscopy (ICLAS). CD chopper driver PM power meter Mj, M2, M3, M4 spherical high reflection mirrors Mp = pump mirror MN monochromator PMT photomultiplier SP silicon photocell PC Pockels cell WF wedged filter LIA lock-in amplifier R recorder MS microscope OF optical fiber S sample (solution on BLM) IEM instruments for electrical measurements (see Figure 2).

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