A Wireless Sensor Network with Enhanced Power Efficiency and Embedded Strain Cycle Identification for Fatigue Monitoring of Railway Bridges

Table 1

Power consumption of a sensor node with AFE.

Resistance of strain gage	Resistance of resistors and	Current	Overall power consumption	Power consumption AFE
		mA	mW	mW
120	0	19.6	58.8	39.5
120	300	6.77	20.3	12.7
700	300	3.83	11.5	6.5