Lab 1 Bio 3U03 - 1 Experiment 1. Introduction to iWorxTM...

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Comment line entry Mark AutoScale Double Display Time Half Display Time 1 Cursor 2 Cursors Double Display Time Half Display Time Analysis Marks XYView ScopeView FFT 2 Cursors & 1 Cursor Main Journal Experiment 1. Introduction to iWorx TM and LabScribe TM Note : There will be no lab report. However there will be a brief quiz at the end, designed by the TA and worth 2 marks. This software is a data recording and analysis software that permits you to collect data and analyse it quickly and efficiently. With this software, we are going to explore many aspects of physiology over the term. As an introduction lab to this software we are going to learn basic functions of this software that you will need for subsequent labs. Note: In the labs you will be carrying out over the term, some of the exercises are similar to those suggested by the manufacturers of iWorx TM and LabScribe TM and have been modified from the Laboratory Manual which they publish, while other exercises are entirely different. Equipment Setup 1. Start up the computer. 2. Use the USB cable to connect the computer to the USB port on the rear panel of the iWorx unit. 3. Use the power switch on the rear to turn on the unit and confirm that the red power light is lit. Note : Each exercise should be performed and saved separately. After one exercise, please save it with proper label, close it and open a proper new setting for the next exercise. Exercise 1. Finger Pulse Measurement 1. Click the LabScribe2 icon and answer “OK” in the box which appears. 2. Click on the Settings menu and select the Introduction Lab settings file. 3. Notice that each Channel has its own recording area, with a title area at the upper left corner (eg. Channel 1 and 2) followed in sequence by icons representing Zoom In , AutoScale , Zoom Out , Add Fucntion , and the Value of the voltage at the upper right. Above the Channel 1 is the sampling Speed , the Display Time , the Mark button, the comment entry line and the Record button. Figure 1-1. AutoScale button, Mark button and Comment line on the Main window tool bar. 1
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1. We will use pulse plethysmography to collect data about your finger blood flow in this tutorial exercise. The plethysmograph detects very small changes in volume as the blood flow into your finger increases and decreases with each cardiac contraction. 2. Plug the DIN connector on the end of plethysmograph into the Channel 3 and place the plethysmograph on the volar surface (where the fingerprints are located) of the distal (outermost) segment of the middle finger, and wrap the Velcro strap around the finger to attach the unit firmly in place. 3. Click Record and record the finger pulse for 60 seconds. Each pulse represents the blood flow to the finger from one cardiac contraction. If the peak of the pulse goes down, use the Invert function in the right-click menu for Channel 3 to orient the image in the correct direction. Click AutoScale in the Pulse Channel title area and see the rhythmic signal almost fill the Channel
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Lab 1 Bio 3U03 - 1 Experiment 1. Introduction to iWorxTM...

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