Experimental Research on Quick Structural Health Monitoring Technique for Bridges Using Smartphone

Table 3

Main instruments parameters.

Instrument	Brand	Model	Parameter
Piezoelectric accelerometer	SINOCERA	CA-YD-188	Sensitivity: 500 mV/g ± 5%; Measurement range: 10 g; Frequency range: 0.3–2500 Hz
Laser displacement sensor	MICR-EPSILON	ILD 11300	Measuring range: 50 mm to 150 mm; Resolution (dynamic): 100 microns
Laser transmitter	Ruic	Red-light semiconductor laser	Output wavelength: 650 nm; Overall dimensions: Φ 20 mm × 90 mm; Light spot diameter is 3 mm at a 20 m distance