Nonintrusive Sensor System Developed Using a Force-Sensing Resistor for Pipeline Integrity Monitoring

Table 3

Pressure measured using intrusive and nonintrusive sensors.

Intrusive sensor (bar)	Nonintrusive sensor (bar)	Gap	%
6.16	6.19	0.029	0.5
5.66	5.72	0.063	1.1
5.15	5.28	0.133	2.6
4.64	4.80	0.159	3.4
4.13	4.28	0.156	3.8
3.62	3.80	0.175	4.8
3.11	3.28	0.170	5.5
2.61	2.76	0.154	5.9
2.09	2.20	0.106	5.1
1.59	1.68	0.093	5.8
1.07	1.12	0.045	4.2
0.97	1.04	0.065	6.7
0.87	0.92	0.048	5.5
0.77	0.80	0.033	4.3
0.67	0.72	0.051	7.7
0.57	0.60	0.031	5.5
0.46	0.48	0.018	3.9
0.36	0.40	0.038	10.6
0.26	0.29	0.027	10.3
0.16	0.16	0.004	2.3
0.00	0.00	0.000	0.0