Vibration Control Options

Sine Control Options & Random Control Options

Sine Notching - Random Response Limiting
Sine Control Notching and Random Control Response Limiting enables users to effectively protect test items against over-testing. While the average control signal level will match its reference spectrum, the response at particular points of the tested object may be very different, due to the resonances of the device under test. The vibration level at any channel (control- or measurement) is limited by an auxiliary reference profile for maximum protection of the test item.

Combined Modes Options

Sine on Random
The Sine on Random (SoR) module offers the possibility to define a background noise level combined with up to ten fixed and sweeping sine tones.
Random on Random
Random on Random (RoR) option offers the user the possibility to define a background noise level combined with an unlimited number of fixed and sweeping narrow-band signals.
Sine on Random on Random
Both options in combination with Random Control allow the definition of complex profiles, typically called Sine on Random on Random (SoRoR).

Shock Control Options

Shock Response Synthesis
Shock Response Synthesis synthesizes a time waveform that corresponds to a user defined shock response using a series of superimposed wavelets, a series of superimposed damped sine or a chirp sine. The synthesis module is seamlessly integrated in the shock control workbook.

Analysis - Options

Time Recording during Swept Sine Control and Tracked Sine Dwell

This module enables the recording of continuous time histories parallel to online analysis based on fixed sampled spectra, without jeopardizing the performance of the control loop. The recorded throughput data are directly streamed to LMS TDF (Time Data Format) on a PC-hard disc.

Geometry and ODS & Time Animation

LMS Test.Lab Geometry is designed to build a geometrical definition of test structures, which can be used to visualize measurement and analysis results in a 3-dimensional view. Deformation shapes of the structure can be investigated starting from frequency spectra, or FRF or Cross-Power information for stationary conditions or starting from time recordings using Operational Deflection Shapes and Time Animation.

Hardware Options

DAC Shutdown Control Unit

The DAC Shutdown Control Unit offers remote shutdown control. It is designed as a hardware backup of the software controlled shutdown. The use of a removable key prevents unauthorized enabling after a shutdown procedure. In addition, the DSCU includes two BNC connectors with normally open and normally closed contacts for connecting external safety devices. The DSCU is connected to the LMS SCADAS III frame via three-pole LEMO connectors and a 10-meter long cable.

Expand the LMS SCADAS 302VB to 8 measurement channels

The LMS SCADAS 302VB is delivered with 4 channels (SP92-B and PQA). It has one free slot which can be used to expand to an 8-channel system. For higher channel count systems the SC302VB frame can be replaced by the LMS SCADAS 310WV (up to 36 measurement channels) or the LMS SCADAS 316 (up to 60 measurement channels).

Remote Control

The 20 button remote control unit connects to the host computer through USB and supports the LMS Test.Lab Vibration Control commands for operator control. It provides a convenient way to control levels, sweep direction and progress, shock firing, etc.