The objectives of this experiment are to:explore and experiment with arrays, clusters, graphs and charts in LabVIEW.

• The objectives of this experiment are to:explore and experiment with arrays, clusters, graphs and charts in LabVIEW.

Arrays are a variable-sized collection (or grouping) of data elements that are all the same type, such as a group of floating-point numbers or a group of strings. A cluster is a fixed-size collection of data elements of mixed types, such as a group containing floating-point numbers and strings. Graphs and charts differ in the way they display and update data. VIs dealing with graphs usually collect data and store them in an array and then plot the data to the graph. In contrast, a chart appends new data points to those already in the display.

This experiment is designed to introduce you to the techniques for creating arrays, clusters, graphs and charts.

Problem Statement/Instructions

Part A - Using a For Loop to Build a Cluster

Use a for loop to build a cluster as shown in the following figure. The cluster has 3 inputs: a floating-point real number, an integer, and an array of numbers generated by the far loop. The output is wired to a waveform graph to display the random numbers.

Part B- Waveform Graph Plot

LabVIEW VI that computes and plots the second order polynomial y=Ax2+Bx+C. The VI should use controls on the front panel to input the coefficients A, B and C, and it should also use front panel controls to enter the number of points N to evaluate the polynomial over x0 to XN-1. Plot y versus x on a waveform graph indicator (problems P6.7 on page 343 of the text).

Copy the VIs (with the front panel showing the results and the diagram panel) and paste it in your MS Word document. Label the figures as "Part A" and "Part B".

References:

Bishop, R.H. (2010). Learning with LabVIEW 2009. Upper Saddle River, NJ: Pearson Education Inc.