• DSP Centralized Architecture

  Unlike traditional controllers that rely heavily on an external computer for real-time operation, the Spider is the first controller that directly integrates time synchronized Ethernet connectivity with embedded DSP technology. This strategy greatly increases the control performance, system reliability, and failure protection of the controller. It also allows large numbers of channels to be configured without sacrificing system performance.
  

• Black Box Mode: No PC Required

  The Spider-81 can run autonomously in Black Box mode without a PC connected. In this mode, a PC is used only to configure the control system before operation and to download data after the test is complete. During the test, the controller can be operated according to a preset schedule or from a variety of external devices using the digital I/O interface.

• Simple Network Connection

  Ethernet connectivity allows the Spider-81 to be physically located far from the host PC. This distributed structure greatly reduces the noise and electrical interference in the system. One PC can monitor and control multiple controllers over the network. Since all the control processing and data recording are executed locally inside the controller, the network connection will not affect the control reliability. With wireless network routers, the PC can easily connect to the Spider remotely via Wi-Fi.

• Latest Hardware Design

  Spider-81 modules have voltage, charge, and IEPE inputs which are ideal for shock, vibration, acoustic, or general purpose voltage measurement. The internal flash memory stores test configuration and real-time analysis data for all channels simultaneously. Multiple output channels provide various signal output waveforms that are synchronized with the input sampling rate. The front panel has 5 function buttons and a bright LCD that displays test status information. Ten monitoring connections on each unit can be used to read the signals of analog inputs and outputs. There is built-in opto-isolated digital I/O and RS485 serial ports to interface with other hardware. There is a connection for an external abort button. A floating-ground power connection reduces ground loop problems in the controller installation.
  

• Time Synchronization

  The Spider-81 is built on IEEE 1588 time synchronization technology. Spider modules on the same network can be synchronized with up to 50 ns accuracy, which guarantees ±1 degree cross channel phase match up to 20 kHz.

• On-Board LCD Display

  Each Spider-81 is equipped with a bright front panel LCD that displays system status and test information. Real-time status such as control RMS or sweeping frequency can be instantly viewed.

• High Reliability

  The Spider-81 is the first vibration control system designed for fail-safe operation even in the event of a network or power loss. Advanced safety routines allow sensor failures to be detected within milliseconds. The Spider-81 hardware passed strict environmental tests including EMI, temperature, drop shock, sine, and random vibration. The system is built tough to withstand the rigors of the testing environment and for long-lasting durability. The unique floating ground design reduces ground loop problems in the installation.

• ASAM-ODS Data and File Model

  ASAM is an international organization that is supported by more than 150 companies in the testing and measurement industry. The Spider system is fully compliant with the ASAM-ODS data and file model. The Spider-81 data can be read by the software of LMS, B&K, BBM, and many other providers.

• Dynamic Signal Analysis

  The Spider is integrated with general signal analysis functions including time stream recording, transient capture, FFT, auto power spectrum, and transfer function analysis. Multiple Spider-80 DSA modules can work together with a Spider-81 VCS module as one integrated system.

• High Performance

  By using enhanced control algorithms and a simplified DSP architecture, the feedback control loop time of Sine and Random control are greatly reduced. A reduced loop time ensures precise control even with highly resonant structures. This also provides faster responses for better safety protection.

• Ease of Use

  The Spider-81 software is further improved at the user interface level. More graphic guidance, wizards, and tools were added to make setup a snap. The interface has been rearranged to make it more logical and more useful. Event-Action rules, Abort-Sensitivity, and other new interface features are used to simplify operation. Searching through a large number of tests is easy with keywords.
  

• High Accuracy

  Using a patented technology, the Spider is the only vibration control system that achieves 130 dB input dynamic range. Each measurement channel can detect signals as small as 6μV and as large as 20V. This completely eliminates the need for the input range or gain settings found on traditional controllers.

Spider-81B Basic Version