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Advanced Multi-exciter Dynamic Testing since 1961

Shock

Panther Shock Control delivers precision and performance in transient vibration testing. Built on Spectral Dynamics' heritage as the inventor of closed-loop digital vibration control, Panther combines advanced adaptive algorithms, comprehensive safety, and intuitive operation to provide trusted results, every time. Panther Shock Control delivers the accuracy, repeatability, and safety required for critical transient testing, providing advanced waveform synthesis, adaptive equalization, and real-time protection systems that ensure safe and accurate shock reproduction — every time. When quality of data is important, Panther sets the standard.

Ease of Use & Flexibility
Panther's Shock application simplifies even the most complex transient test setups. Through the Library feature, users can instantly access saved setups, data, and reports without navigating complex file paths. The intuitive interface provides instant recall of setups and data, supports Classic Shock, SRS Shock Synthesis, and Shock Response Analysis in one application. Real-time graphical visualization of input and output waveforms enables immediate feedback, while automatic report generation with overlaid comparison plots streamlines documentation. The simple setup workflow is designed for minimal operator interaction, and the interface supports touch-screen operation on Windows PCs and tablets. Easily and quickly compare data from different channels and different test runs. Panther's modern, touch-friendly interface makes operation fast and intuitive, for engineers at all experience levels.

Advanced Shock Control Technology

•    High-Resolution Acquisition — With simultaneous sampling across all channels at up to 262,144 samples per second and 24-bit ADC resolution, Panther accurately captures even the fastest transients and high-frequency components required for SRS and classic shock testing.
•    Gap-Free Data Streaming — Real-time, gap-free recording of every test run directly to disk for complete post-test analysis.
•    Multiple Data Streams — Independent sample rates per input and control stream for efficient and optimized data capture.
•    Classic Shock Control — Generates and controls traditional transient pulses (half-sine, sawtooth, trapezoidal, etc.) with precision and repeatability.
•    SRS Shock Synthesis — Produces complex waveforms matching a user-defined Shock Response Spectrum (SRS) using specific linear-phase synthesis filters for accurate reproduction.
•    Adaptive Equalization — Proprietary real-time correction algorithm compensates for hardware and fixture response without iterative tuning.
•    Waveform Preview & Verification — Preview synthesized waveforms and automatically verify response before execution to ensure test accuracy.
•    Multi-Event Sequencing — Combine multiple shock events within one test for increased test realism and efficiency.
•    Data Comparison — Overlay live and reference waveforms for pass/fail validation and instant verification.

•    Automatic NIST-Traceable Calibration — Ensures measurement accuracy for both input and output channels with internal digital calibration.
•    Full Channel Synchronization — Maintains precise phase alignment across all channels (< 1 µs) for accurate multi-axis testing.
•    Powerful Library System — Provides fast access to setups and data with aliasing and favorites for instant recall of test configurations.

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Safety and Reliability
Panther continuously monitors the signal path and hardware health during every shock event. Over-level aborts, slew-rate limits, and redundant safety relays protect both the test article and control system. Built-in watchdogs, automatic abort thresholds, and real-time feedback ensure operator and equipment safety. Panther monitors over a dozen critical parameters up to 25 times per second. Safety isn't an afterthought — it's designed into the system.

Applications
Aerospace • Automotive • Defense • Electronics • Transportation • Energy

Technical Data Sheet

Input Subsystem

Output Subsystem

Input Channels: 8 channels (expandable up to 32)

Dynamic Range: >110 dB

Dynamic Range: >110 dB

DAC: 20 Bit

ADC: 24 Bit

Max Output Amplitude: ±12 V Peak

Voltage Ranges: ±12 V to ±0.5 V in 8 steps

Max Output Current: 16 mA

Auto Ranging: Yes

Amplitude Accuracy: ±0.20% of value or ±0.03% of full scale (whichever is greater)

Overload Detection: Full scale on all channels; analog and digital detection

Amplitude Linearity: ±0.20% of value or ±0.03% of full scale (whichever is greater)

Voltage Coupling: AC or DC or GND

Max Attenuator Rate: Software selectable

IEPE Power: 4 mA (24 V max into open circuit)

Max Output Rate: 262,144 samples per second

Max Rated Input Signal: ±35 V Peak

Image Attenuation: <96 dB

Max Sampling Rate: 262,144 samples per second

Frequency Accuracy: ±5 ppm

Sampling Interval: Simultaneous on all channels

Freq. Range Reduction: 10-stage smoothing filters

Frequency Accuracy: ±5 ppm

Reconstruction Filters - Analog: Cutoff: 1 kHz, 10 kHz, 25 kHz, OFF; Image Attenuation >96 dB; Pass Band Ripple ±0.15 dB

Freq. Range Reduction: Digital decimation and filtering using on-board FPGA and DSP

Output Offset Removal: Digitally controlled; Accuracy ±0.5% of Full Scale

Anti-Aliasing Filters - Analog: Fixed @ 524 kHz; Alias Attenuation >105 dB; Pass Band Ripple ±0.10 dB

Output Impedance: 60 Ω

Anti-Aliasing Filters - Digital: Variable; Stop Band Attenuation >96 dB @ Nyquist; Pass Band Ripple ±0.15 dB

COLA Output Level: 1 V Peak (generated after analog smoothing filter)

Channel-Channel Match (Single Unit): Amplitude ±0.25 dB; Phase ±1.0° to 100 kHz

Output Type: Pseudo-differential; 10 Ω to system ground (low side return)

Channel Crosstalk: <-100 dB

Output Cable: Drives up to 50 ft of shielded 50 Ω coaxial cable

Phase Between Units: ±1.0° to 100 kHz

 

Offset Removal (Input): Digitally controlled; Accuracy ±0.5% of full scale for each input range

 

Input Impedance: 1 MΩ

 

Connector Type: BNC

 

Connection Type: Pseudo-differential, 10 Ω to system ground (low side return)

 

Calibration: Internal digital calibration, NIST referenced

 

Calibration Constants: Digital calibration constants stored in ASCII file

 

Host to Unit Communication: USB or Ethernet or Optional Wi-Fi

 

TEDS Compliant: Yes

 


Panther Features


 

  • Advanced Calculator

  • Custom Status Panels

  • Easy Data Conversion

  • Graphical Data Recording

  • High Precision Frequency Tracking (HPFT)

  • High Sample Rate

  • Library

  • Modular Design

  • Multi-Source Data Definition

  • Multiple Acquisition Streams

  • Process Lines

  • Real-Time Digital Resampling

  • Report Generation

  • Secure Remote Access and RCI

  • Sine Tracking Filters

  • Stream to Disk

  • Tags

  • TEDS

  • Time Domain Analysis Tool

  • Touch Screen Interface

Spectral Dynamics, Inc. is a leading worldwide supplier of systems and software for vibration testing, structural dynamics, and acoustic analysis. Spectral Dynamics' products are used for design verification, product testing and process improvement by manufacturers of all types of electronic and mechanical products.

2199 Zanker Road, San Jose, CA 95131-2109
Tel: (800) 778-8755
sales@spectraldynamics.com
service@spectraldynamics.com

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