An Experiment Monitoring Signals of Coal Bed Simulation under Forced Vibration Conditions

Table 3

Technical data of the acceleration sensor.

Main technical parameters
Model	YD-32T	Linear	≤1%
Sensitivity V/ms^2	0.1	Transverse sensitivity	≤5%
Frequency range (Hz) (+10%)	10~6000	Output amplitude	±5 VP
Install resonance point (Hz)	23 K	Output offset voltage	8~12 VDC
Range m/s^2 (+10%)	20	Supply current	2~20 mA
Resolution (m/s^2)	0.0002	Excitation voltage	9 V
Weight (g)	40	Output impedance	≤150 Ω
Geometry (mm)	Six party 18 × 18 × 23	Shell insulation resistance	>108 Ω
Output mode	Top output	Discharge time constant	≥0.2 s
Mounting screw	M5	Year stability	3%
Operating temperature range	−40°C~+80°C