Faster set up enhancements modal shakers

27th May 2016
Posted By : Mick Elliott
Faster set up enhancements modal shakers

A range of modal shakers from The Modal Shop (TMS) that offers significant benefits to users with smaller sizes and easier set up has been introduced by PCB Piezotronics, 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.

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 SmartShakerT with integrated power amplifier, a variety of mini, through-hole modal exciters, platform vibration shakers and the new SmartAmpT power amplifiers.

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.


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