Modal Test Systems

Labworks Modal test systems are typically designed with extremely light armatures and lower stiffness armature suspension systems to minimize mass and stiffness loading effects in resonant mode analysis testing. Usually featuring a single mounting point for use with a Stinger Collet or threaded stingers, these systems have a central clearance hole completely through the shaker to allow easy stinger length adjustment and for use with tensioned wire excitation testing. The large displacement of our MT-160 systems facilitates low frequency modal testing. High amplifier output voltages insure against velocity related clipping under mechanically resonant conditions.
Modal Test Systems
Force Ratings
Freq. Range
Accessories
Dedicated Modal Test Systems

Sine: 60 lbf pk (270 N pk)

Random: 25 lbf rms (111 N rms)

Shock: 70 lbf pk (312 N pk)

Blocked Armature: 60 lbf pk 270 N pk)
DC to 6,500 Hz

SI-163

Sine:
    30 lbf pk (134 N pk) (nat. cooled)

    40 lbf pk (178 N pk) (Opt. Blower)

Random: 15 lbf rms (67 N rms)

Shock: 50 lbf pk (220 N pk)

Blocked Armature: 40 lbf pk (178 N pk)

DC to 6,500 Hz
    
SI-163            CB-152

Sine: 25 lbf pk (111 N pk)

Random: 10 lbf rms (45 N rms)

Shock: 35 lbf pk (99 N pk)
DC to 6,500 Hz

SI-163

Sine: 60 lbf pk (270 N pk)

Random: 28 lbf rms (125 N rms)

Shock: 70 lbf pk (312 N pk)
DC to 10,000 Hz

SI-160

Sine: 30 lbf pk (134 N pk)

Random: 15 lbf rms (67 N rms)

Shock: 38 lbf pk (170 N pk)
DC to 10,000 Hz

SI-160

Sine: 25 lbf pk (111 N pk)

Random: 11 lbf rms (49 N rms)

Shock: 33 lbf pk (150 N pk)
DC to 10,000 Hz

SI-161

Sine: 13 lbf pk (58 N pk)

Random: 8 lbf rms (36 N rms)

Shock: 24 lbf pk (107 N pk)
DC to 10,000 Hz

SI-161

Sine: 9 lbf pk (45 N pk)

Random: 7 lbf rms (31 N rms)

Shock: 21 lbf pk (93 N pk)
DC to 10,000 Hz

SI-161
Modal / General Purpose Systems

Sine: 110 lbf pk (490 N pk)

Random: 45 lbf rms (200 N rms)

Shock: 110 lbf pk (490 N pk)
DC to 6,500 Hz

MS-129-140          SI-140

Sine: 75 lbf pk (330 N pk)

Random: 28 lbf rms (125 N rms)

Shock: 75 lbf pk (330 N pk)
DC to 6,500 Hz

MS-129-139          SI-139

Sine: 40 lbf pk (180 N pk)

Random: 17 lbf rms (75 N rms)

Shock: 45 lbf pk (200 N pk)
DC to 6,500 Hz

MS-129-139          SI-139

Sine: 30 lbf pk (134 N pk)

Random: 15 lbf rms (67 N rms)

Shock: 51 lbf pk (227 N pk)
DC to 6,500 Hz

MS-129-139          SI-139
Modal Test Systems
Force Ratings
Freq. Range
Accessories