Wilcoxon - Model F4/F7 -Electromagnetic/Piezoelectric Shaker System

F4 electromagnetic shaker:
 Usable frequency range 10 - 7,500 Hz
 Blocked force output1 see graph on page 2
 Maximum continuous current 1.5 amp rms
 Maximum continuous current w/ air cooling 2.5 amps
 Nominal electrical impedance 25 Ω
 DC electrical resistance 13 Ω
 Resonance frequency, blocked 40 Hz, nominal
 Connector2 Bendix PT06A-8-3S
 Cable R4M-8B-8B-J9B-10

F7 piezoelectric shaker/impedance head:
 Usable frequency range 500 - 20,000 Hz
 Blocked force output1 see graph on page 2
 Maximum input, voltage 800 V rms
 Maximum acceleration 1,000 g
 Capacitance 8.0 nF
 Connector2 Bendix PT06A-8-3P
 Cable R4-4M-J9-10

Accelerometer nominal values:
 Charge sensitivity 9 pC/g (0.92 pC/m/s2)
 Voltage sensitivity3 13 mV/g
 Capacitance3 700 pF
 Frequency range, ±3 dB 10 - 20,000 Hz
 Connector2 Microdot 10-32
 Output cable R1-1-J1-6

Force gage nominal values:
 Charge sensitivity 175 pC/lb (39 pC/N)
 Voltage sensitivity3 75 mV/lb (17 mV/N)
 Capacitance3 2,300 pF
 Frequency range, ±3 dB 10 - 40,000 Hz
 Connector2 Microdot 10-32
 Output cable R1-1-J1-6

Mass below force gage (including stud) 20 grams (0.044 lb)
Effective stiffness 3x106
 lb/in (5.2x108
 N/m)
Diameter of mounting surface 0.63 in. (1.66 cm)
Mounting stud, stainless steel 3/8-16 UNC
Recommended screw down torque 100 lb/in (11 N/m)
Temperature range 0° to +80°C
Base material titanium
Weight:
 Parts rigidly attached to structure (incl. F7)
 Suspended weight
 Total weight
3.4 lb (1.5 kg)
4.8 lb (2.2 kg)
8.2 lb (3.7 kg)