
TMS modal shakers from PCB Piezotronics offer significant benefits
with smaller sizes and easier set up
PCB Piezotronics,
a world leader in vibration, acoustic, pressure, force and torque
sensors offers a range of modal shakers from The Modal Shop (TMS)
that offers significant benefits to users with smaller sizes
and easier set up than competitive products.
The shaker range from TMS is specifically designed for use in
modal applications unlike most conventional shakers that are
intended for vibration testing installations. For the latter,
the shaker mass needs to be very high compared to the mass of
the product being tested so that the shaker remains stationary
while the product under test moves. In modal testing, by comparison,
the applied force only needs to be low so that the shaker mass
can be reduced making it easier to move around and position accurately.
Consequently, TMS modal shakers can be used with an adjustable
lateral support stand and weigh considerably less than standard
vibration test shakers making them easier to manoeuvre into position
- models weighing less than 25% of competing systems can achieve
the same results.
TMS modal shakers also feature a convenient through-hole armature
to make shaker set up much easier. Once the shaker has been positioned,
the "stinger" can be adjusted to the length required
by sliding it into the shaker armature then, when in the correct
position, it can be locked in place by tightening the collet
on the shaker. Competitive shaker systems without through-hole
armatures feature threaded inserts on the shaker table and a
rigid armature meaning careful movement of a heavy shaker is
necessary to get the distance set correctly.

To avoid frustrating delays in setting up carefully planned test
installations, TMS offers modal exciters and vibration shakers
as complete systems that include shaker, amplifier, cooling package
(as required) and an all-inclusive accessories box. As a market
leader, TMS shaker systems provide all the essentials with no
hidden costs and the PCB Group company is committed to continuing
excellence in the field of sound and vibration through systems
designed to meet the needs and simplify installations for test
and measurement professionals.
TMS's line of modal exciters and vibration shakers are available
as complete turnkey systems as standard with models ranging from
9 to 489N. Available designs include the new SmartShakerTM with
integrated power amplifier, a variety of mini, through-hole modal
exciters, platform vibration shakers and the new SmartAmpTM power
amplifiers.
Each exciter includes a trunnion base with ergonomic EasyTurnTM
handles to make adjusting shaker position and alignment as simple
as possible. The exciter is also accompanied by all necessary
cables and a companion amplifier. Accessory kits include stingers
in various sizes, chucks and collets for easy connection of shaker
and test object. Also supplied are all the tools required to
help with stinger installation or to add and remove adaptor and
mounting inserts. Additional accessories include spare fuses,
low-profile trunnion bolts and adaptors to help meet requirements
for many different installation configurations.
May 2016