Expt_24

# Expt_24 - Lab-in-a-Box Experiment 24 The Wien-Bridge...

This preview shows pages 1–2. Sign up to view the full content.

Lab-in-a-Box Experiment 24: The Wien-Bridge Oscillator Name: ______________________ Pledge: _____________________ ID: ______________________ Date: ______________________ Procedure R 1 8 2 0 8 2 0 R 2 V o R f 2 2 k +9V 1 0 k 0 + C 2 0 . 1 u 8 . 2 k - C 1 0 . 1 u V 2 + - 0 -9V U 1 L F 3 5 6 N 3 2 7 4 6 1 5 + - V + - O U T B 1 B 2 R g Figure 1: Circuit Diagram for Wien bridge oscillator. Analysis: 1. Determine the expected frequency of oscillation generated by the Wien-bridge oscillator shown in Figure 1. 1 of 2

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Measurements: 2. Using a digital multimeter, measure the actual resistances of the 22 kΩ resistor, the 8.2 kΩ resistor, and the trim pot at its highest resistance value. 3. Using the measured values of the resistances, calculate the gain ( 2 / o V V ) of the circuit. What do you expect the output to be? 4. Using the digital multimeter, measure the resistance of the trim pot at its lowest resistance value. 5. Using the resistances of the resistors found in step 2 and the trim pot value measured in step 4, calculate the gain of the circuit. What do you expect the output to be?
This is the end of the preview. Sign up to access the rest of the document.

## This lab report was uploaded on 04/10/2008 for the course ECE 2074 taught by Professor Stilwell during the Fall '08 term at Virginia Tech.

### Page1 / 2

Expt_24 - Lab-in-a-Box Experiment 24 The Wien-Bridge...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online