Result comparison between project's output and conventional ECG machine

We can compare the result of this project's output and conventional ECG machine. The comparison is divided into 2 parts which is its baseline and linearity.

BASELINE

Baseline position is the position of the wave at the x-axis and y-axis ( 0,0 ). The graph can only have ±5 mm error from the baseline and this baseline based on the first graph (at the left side). When measured the baseline position at the graph paper it should consist only ±5 mm.

Result obtain from this project

Result from conventional ECG machine

Both of graph show an acceptable value of error which is below ±5 mm. However this project contain much higher baseline error value of ±2.45 mm to be compared with baseline error value of  ±0.2 mm for the conventional ECG machine. Hence, the baseline condition for the conventional ECG is much more accurate, stable and acceptable. This problem should be utilise to increase to have a precise baseline by setting an accurate and correct range of amplitude of Y axis and time for X-axis. It can be done with the use of properties button in the LabVIEW software.

LINEARITY

For linearity based on the print out graph either it in linear or not and the result is still acceptable if the is only have ±5 % error. Picture below show the linearity of the ECG machine which measured by a straight blue line as an indicator. 

Result obtain of this project

Result from conventional ECG machine

Both of the waveform shown a different percentage of linearity which is the conventional ECG linearity is much more stable and accurate to be compared with the project linearity. As a solution to this problem, a lower gain should be applied to this project to ensure its stability and accuracy.