DataAcquisition-Report2

DataAcquisition-Report2 - Lab Report #3: Introduction to NI...

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Unformatted text preview: Lab Report #3: Introduction to NI ELVIS BMEN 305 504 Date performed: 09/20/07 Date due: 09/27/07 2 Table of Contents 1. Introduction.. ...2 2. Materials and Methods.... ...2 2.1 Digital Multimeter 2 2.2 Interfacing with LabVIEW 3 2.3 Function Generator and Oscilloscope.3 2.4 Digitals and Diode Signaling ..3 3. Results and Discussion... .....4 4. Conclusion.... .8 3 Introduction The purpose of this lab was to get acquainted with NI ELVIS, a data acquisition system that serves as a unification tool for laboratory equipment such as function generators, power supplies, and multimeters. The lab also taught us how LabVIEW can interface with ELVIS, as LabVIEW can undergo signal processing and analysis. This lab teaches the basics of data acquisition and will help in future labs where we are expected to have mastered these techniques. Materials and Methods Part I: Digital Multimeter 4 The digital multimeter in NI ELVIS was first opened. The values of the three assigned resistors were measured by placing them on the Current HI and Current LO pins on the board. The same was done to measure the value of the capacitor. The following circuit (Fig. 1) was then constructed. Figure 1: Part I, Circuit 1 After setting the DMM to Voltage HI and Voltage LO, the voltage across the 2.2k resistor was measured. After that, the circuit was modified, as shown in Fig. 2 - the 1.0k resistor was replaced with a 1.0M resistor, and the 2.2k resistor was replaced with a 1uF capacitor. The voltage across the capacitor was then measured and the rise in voltage was observed. The circuit was again modified, this time an op-amp was added (Fig. 3). The voltage at the output of the op-amp was measured. Figure 2: Part I, circuit 2 Figure 3: Part I, Circuit 3 Part II: Interfacing with LabVIEW...
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This note was uploaded on 05/05/2008 for the course BMEN 305 taught by Professor Meissner during the Fall '07 term at Texas A&M.

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DataAcquisition-Report2 - Lab Report #3: Introduction to NI...

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