DH5922D parallel dynamic signal acquisition system with 24-bit A/D per channel, up to 256 kHz/channel, for vibration and modal testing.
Overview
The DH5922D is a multi-channel parallel dynamic signal acquisition and analysis system in a 19-inch rack-mount chassis with plug-in boards, 4 channels per board; all channels sample simultaneously, each with its own 24-bit sigma-delta A/D, at up to 256 kHz/channel. Inputs include DC/AC/GND single-ended/differential, IEPE piezoelectric accelerometers (constant-current), voltage and strain (full/half/three-wire quarter bridges), with built-in anti-aliasing filters, programmable gain and TEDS smart-sensor recognition. Paired with analysis software it performs time waveforms, FFT, transfer function, coherence, frequency response and modal parameter identification (natural frequencies, damping ratios, mode shapes) for vibration and modal tests; widely used in aerospace, automotive, rail transit, shipbuilding and machinery for strength, NVH and structural-dynamics testing.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• IEPE piezoelectric sensor with wide frequency response and built-in preamplifier
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Channels | 4/board, multi-board expandable |
| A/D | per-channel independent 24-bit Σ-Δ |
| Max sampling rate | 256 kHz/ch (switchable ranges) |
| Frequency response | DC–100 kHz (flat to 50 kHz) |
| Input modes | DC/AC/GND, single/diff, IEPE |
| Voltage range | ±20 mV to ±10 V, multi-range |
| Strain range | ±1000 / ±10000 / ±100000 µε |
| Bridge | full / half / three-wire quarter |
| Anti-alias | analog + DSP digital filter |
| IEPE constant current | per channel |
| Sensor ID | TEDS, smart leads |
| Interface | Gigabit Ethernet |
| Analysis | FFT, FRF, coherence, modal analysis |
| Chassis | 19-inch rack-mount |
| Applications | vibration, NVH, modal, structural dynamics |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the DH5922D Vibration Signal Acquisition and Analysis System comply with?
A1: The DH5922D Vibration Signal Acquisition and Analysis System is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the DH5922D Vibration Signal Acquisition and Analysis System be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The DH5922D is a multi-channel parallel dynamic signal acquisition and analysis system in a 19-inch rack-mount chassis with plug-in boards, 4 channels per board; all channels sample simultaneously, each with its own 24-bit sigma-delta A/D, at up to 256 kHz/channel. Inputs include DC/AC/GND single-ended/differential, IEPE piezoelectric accelerometers (constant-current), voltage and strain (full/half/three-wire quarter bridges), with built-in anti-aliasing filters, programmable gain and TEDS smart-sensor recognition. Paired with analysis software it performs time waveforms, FFT, transfer function, coherence, frequency response and modal parameter identification (natural frequencies, damping ratios, mode shapes) for vibration and modal tests; widely used in aerospace, automotive, rail transit, shipbuilding and machinery for strength, NVH and structural-dynamics testing.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• IEPE piezoelectric sensor with wide frequency response and built-in preamplifier
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Channels | 4/board, multi-board expandable |
| A/D | per-channel independent 24-bit Σ-Δ |
| Max sampling rate | 256 kHz/ch (switchable ranges) |
| Frequency response | DC–100 kHz (flat to 50 kHz) |
| Input modes | DC/AC/GND, single/diff, IEPE |
| Voltage range | ±20 mV to ±10 V, multi-range |
| Strain range | ±1000 / ±10000 / ±100000 µε |
| Bridge | full / half / three-wire quarter |
| Anti-alias | analog + DSP digital filter |
| IEPE constant current | per channel |
| Sensor ID | TEDS, smart leads |
| Interface | Gigabit Ethernet |
| Analysis | FFT, FRF, coherence, modal analysis |
| Chassis | 19-inch rack-mount |
| Applications | vibration, NVH, modal, structural dynamics |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the DH5922D Vibration Signal Acquisition and Analysis System comply with?
A1: The DH5922D Vibration Signal Acquisition and Analysis System is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the DH5922D Vibration Signal Acquisition and Analysis System be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
