Read Microphone Data
Recommended for grades 9–14.
Introduction
In the following steps, you will create a simple program using SensorDAQ’s Analog Express VI to collect data for a length of 0.1 second at a rate of 10,000 samples/second. This timing configuration results in 1001 data points. It is important to note how the data are displayed in this example. Namely, this is an example of multi-point data collection, where all data points are displayed on the graph following the collection of all 1001 data points. The Analog Express VI is designed to return data in this multi-point method whenever the data-collection rate is greater than 200 samples/second. At slower rates, data are returned on a point-by-point basis.
Objectives
In this exercise, you will
- Create a LabVIEW VI.
- Become familiar with the LabVIEW environment.
- Acquire Microphone data.
- Display data in a graphical form.
Sensors and Equipment
This activity requires each of the following Vernier sensors and equipment (unless otherwise noted):
Additional Requirements
You will also need a SensorDAQ interface and LabVIEW software for data acquisition.
Download Experiment Preview
The student-version preview includes:
- Step-by-step instructions for computer-based data collection
- List of materials and equipment
The preview does not include essential teacher information, safety tips, or sample data. We strongly recommend that you purchase the book for classroom use.
Standards Correlations
No standards correlations for this experiment.
Experiment 2 from Hands-On Introduction to NI LabVIEW with Vernier Lab Book
Included in the Lab Book
Vernier lab books include a CD with word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.