5.9 KiB
5.9 KiB
Actuators and Sensors
Sensors
Inertial Sensors
Bibliography
cite:collette12_compar cite:collette12_review cite:fleming13_review_nanom_resol_posit_sensor
Actuators
Piezoelectric
Voice Coil
Suppliers
Actuators
Sensors
Accelerometers
Geophones and Seismometers
Force sensor
Interferometers
Positioning Systems
ESRF Equipment
Geophones
L-28LB
| Natural Frequency [Hz] | 4.5 |
| Weight [g] | 140 |
| Sensitivity [V/(m/s)] | 31.3 |
We define the parameters of the geophone and we plot its bode plot (figure fig:L28LB_bode_plot).
w0 = 4.5*2*pi; % [rad/s]
ksi = 0.38;
G0 = 31.3; % [V/(m/s)]
G = G0*(s/w0)^2/((s/w0)^2 + 2*ksi*(s/w0) + 1); <<plt-matlab>>
L-4C
| Natural Frequency [Hz] | 1 |
| Weight [g] | 2150 |
| Sensitivity [V/(m/s)] | 276.8 |
The transfer function from the velocity and the measured voltage is defined below.
Its bode plot is shown on figure fig:L4C_bode_plot.
w0 = 2*pi; % [rad/s]
ksi = 0.28;
G0 = 276.8; % [V/(m/s)]
G = G0*(s/w0)^2/((s/w0)^2 + 2*ksi*(s/w0) + 1); <<plt-matlab>>
Accelerometers
Pieozoelectric acc. 356b18 - 3 axis
| Sensitivity | 0.102 $V/(m/s^2)$ |
| Measurement Range | 4.9 $m/s^2$ pk |
| Frequency Range | 0.5 to 3000 Hz |
| resonant frequency | > 20000 hz |
| broadband resolution | 0.0005 $m/s^2$ rms |
Ceramic acc. 393B05 - 1 axis
| Sensitivity (±10 %) | 1.02 $V/(m/s^2)$ |
| Measurement Range | 4.9 $m/s^2$ pk |
| Frequency Range (±5 %) | 0.7 to 450 Hz |
| resonant frequency | > 2500 hz |
| broadband resolution | 0.00004 $m/s^2$ rms |