Spider-80Hi High Channel Count Dynamic Measurement System

Data Acquisition Systems, High Channel Dynamic Signal Analyzers, Vibration Controllers

Product Overview

The Spider-80Hi from Crystal Instruments is the front-end module for the Spider-80Xi modular, scalable system, built for high channel count dynamic signal analysis, vibration control and machine monitoring. Each module provides 8 input channels and 2 channels that can be set in software as analogue outputs or tachometer inputs, so a single front-end is a complete two-output vibration controller.

Using patented dual 24-bit sigma-delta ADC technology, the Spider-80Hi achieves more than 175 dBFS dynamic range, with sampling up to 512 kHz and THD of -105 dB at 1 kHz. Modules install in 4-slot (DC powered, field portable) or 8-slot (AC powered, up to 64 channels) Spider-80Xi chassis, and systems scale from 16 up to 1,024 channels, all sampled simultaneously and phase matched via IEEE 1588v2. Black Box mode lets tests run without a PC, on a schedule or triggered by external events. It is supported by Crystal Instruments’ EDM software for dynamic signal analysis, vibration control and modal testing.

Markets

Aerospace, Automotive, Defence, Education, Electronics

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Product Resources

Spider-80Hi Hardware Specifications

Data Sheet

SPECIFICATIONS

Inputs	8 per module, BNC; IEPE (ICP), voltage and TEDS; single-ended or differential, AC or DC coupling
Outputs	2 channels, 32-bit DAC, up to 512 kHz output rate (software selectable as tachometer inputs)
ADC	Dual 24-bit sigma-delta per channel
Dynamic Range	Above 175 dBFS
Sampling	Up to 512 kHz; all 8 channels up to 204.8 kHz
Input Range	±20 Vpk; ±220 V input protection
Performance	THD -105 dB at 1 kHz; crosstalk better than 120 dB; amplitude channel match under 0.04 dB
Synchronisation	IEEE 1588v2 between modules, phase match better than ±1° at 40 kHz; GPS and PTP grandmaster clock support
Scalability	16 to 1,024 channels across multiple Spider-80Xi chassis, all sampled simultaneously
Chassis Options	4-slot DC powered (field portable); 8-slot AC powered (up to 64 channels)
Charge Mode	Via external CA-08 charge amplifier (Spider-80Ci variant has built-in charge inputs)

FEATURES

Dynamic Range	• Patented dual 24-bit ADC per channel
	• Above 175 dBFS dynamic range with no manual range switching
	• THD -105 dB, crosstalk better than 120 dB
Scalable	• 8 inputs per module
	• 16 to 1,024 channels, all sampled simultaneously
	• 4-slot and 8-slot Spider-80Xi chassis options
Precise Timing	• IEEE 1588v2 synchronisation between modules
	• Phase match better than ±1° at 40 kHz
	• GPS time stamping support
Flexible	• 2 outputs for vibration control or tachometer inputs
	• Black Box mode, no PC needed during the test
	• Supported by EDM DSA, vibration control and modal software

Options
Applications

• Modal testing on large aerospace structures
• Acoustic array measurements
• Multi-point vibration qualification testing
• Machine condition monitoring and rotating machinery analysis
Control System
EDM software is a complete VCS (Vibration Control System). Crystal Instruments has recently released the new EDM 9.0 release, the most powerful and feature rich version of EDM software. EDM 9.0 release supports the newly introduced hardware units (Spider-80Hi, Spider-80Ci, Spider-20i, Spider-20H, Spider-20HE) that support data acquisition and recording for up to 256 kHz. In addition, the proprietary Multi-Resolution technology has been extended to benefit frequently used Vibration Control tests for Single-axis and MIMO tests. EDM has the following suite of software modules:

Software Features
- Random Vibration Control
- Sine-On-Random (SoR)
- Random-On-Random (RoR)
- Swept Sine Vibration Control
- Resonance Search Track & Dwell (RSTD)
- Multi-Sine
- Sine Oscillator