Dynamic Stress-strain Testing and Analysis System - SE-98
The SE-98 Dynamic Stress-strain Test and Analysis System, with the use of 19-inch standard chassis structure, is specially designed for the strength and life evaluation test of large structures. Expanded via a Gigabit Ethernet switch, the dynamic strain-stress signals over 2000 channels can be measured and analyzed in parallel and synchronously by a single computer. SE-98 is widely used for the structures performance testing and analysis of various industries such as aerospace, automotive industry, mechanical engineering, rail transit, etc.
Specially designed for the testing of stress and strain, and the physical quantities of force, pressure, displacement, velocity, acceleration can be accurately tested by cooperating with various bridge sensors, and the signal of voltage can also be accurately measured.
Suitable for cabinet installation and can be used to build a centralized test system to support the online synchronous loading of various load testing machines for the fatigue test of large structures
The maximum sampling rate is 5kHz/channel for simultaneous sampling of all channels
Built-in standard resistance, software-settable of full-bridge, half-bridge and three-wire quarter bridge
The function of intelligent wire identification is supported to facilitate the editing and setting of measurement point information in large system
Support synchronous automatic measurement and correction of wire resistance of all channels
The self-checking function of in-situ channels of strain-stress is supported to obtain the current state of the channel quickly
The multi-channel signal can be recorded for a long time, in real time and without interruption by using computer's hard disk with large capacity
| Name | Detail |
|---|---|
| Number of Input Channel | 8 channels per card, 8/16 card slots per chassis |
| Full-scale Voltage Value | ±0.5V, ±5.0V, ±10.0V |
| Min. Resolution | 5μV |
| Strain Measurement | |
| Full-scale Strain Value | ±60000με |
| Min. Resolution | 0.5με |
| Indication error | ≤0.5%±3με |
| Nonlinearity | 0.05% of F.S. |
| Noise | ≤1μεRMS |
| Zero Drift | ≤3με/4h |
| Self-Balancing Range | ±20000με (±2% of strain gauge resistance) |
| Bridge Excitation | |
| Bridge Configuration | Full, half, three-wire quarter bridge |
| Bridge Completion Resistors | 120Ω, 350Ω (Three-wire quarter bridge) 60Ω ~ 20000Ω (Half bridge / Full bridge) |
| Bridge Voltage | 2V, 5V, 10V DC |
| LPF | |
| Transfer Characteristic | 6th order Butterworth and Chebyshev filter |
| Cut-off Frequency | 10Hz, 30Hz, 100Hz, 300Hz, PASS |
| Communication | Gigabit Ethernet |
| A/D Converter | 24 bits |
| Sampling Rate | 1Hz, 2Hz, 5Hz, 10Hz, 20Hz, 50Hz, 100Hz, 200Hz, 500Hz, 1kHz, 2kHz, 5kHz per channel |
| Anti-aliasing Filter | |
| Cut-off Frequency | 1/2.56 of sampling rate |
| Stop-band Attenuation | >-100dB/Oct. |
| Flatness | <0.1dB (Within analysis frequency range) |
| Power Supply | 220V AC / 10 ~ 30V DC, 180W (64 channels) / 320W (128 channels) |
| Dimensions |
Semi-19” Chassis: 237×133×338mm 19” Chassis: 482×133×338mm |
| Weight |
Semi-19” Chassis (64 channels): Approx. 7kg 19” Chassis (128 channels): Approx. 12kg |
| Environmental Conditions | |
| Operating Temperature | -10°C to 50°C |
| Operating Humidity | 20 ~ 90%RH@40°C |
| Storage Temperature | -40°C to 60°C |
| Storage Humidity | 90%RH24h@50°C |
| Vibration |
Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz Drive amplitude (peak): 0.19 mm Sweep frequency: ≤1Oct./min Duration of resonant: 10 min Vibration direction: x, y, z |
Figure 1 Single System Block Diagram (Wireless AP)
Figure 2 Single System Block Diagram (WiFi)
DE-BSP Basic Platform Software
Running on XP/Win7/Win8/Win10 operating system
Parameters setting, Function control, Real-time/post-acquisition analysis, data browsing, cursor readouts, scaling curve, data management and simple processing, report generation, long-term continuous data recording, etc.
SE-98 DAQ Card
8 input channels
Full-scale voltage value from ±0.5V to ±10.0V
Full-scale strain value is ±50000με
Independent 24-bit A/D converter per channel
The maximum sampling rate is 5kHz for simultaneous sampling of all channels
Software-settable of full bridge, half bridge and three-wire quarter bridge
Support intelligent wire identification and automatic measurement and correction of wire resistance
DE-92U Semi-19" 3U Chassis
8 Card Slots
Including control card, Gigabit Ethernet communication Interface
100 ~ 240VAC / 12VDC power supply
DE-93U 19" 3U Chassis
16 card slots
Including control card, Gigabit Ethernet communication Interface
100 ~ 240VAC / 12VDC power supply
DT5857-8 Charge Conditioner (Optional)
1 input channel
Full-scale charge Value: 103pC, 105pC
Frequency response: 0.3Hz ~ 300kHz/1MHz
DT5857-9 Differential Charge Conditioning Unit (Optional)
1 differential input channel
Full-scale charge Value: 103pC, 105pC
Frequency response: 0.3Hz ~ 300kHz
DT5855-8 Charge Conditioner (Optional)
1 differential input channel
Full-scale charge value: 103pC, 105pC
Frequency response: 0.3Hz ~ 300kHz
Quadratic integral
DT5856-8 IEPE Conditioner (Optional)
Built-in 24V/4mA biasing circuit
Frequecy response: DC ~ 300kHz
Quadratic integral
DT3814-8 Thermistor Conditioner (Optional)
1 input channel
Suitable for Pt10, Pt100, Pt1000 sensors
Measuring temperature range from -200℃ to 850℃
Accuracy: 0.5%±0.5℃
Iout:1mA±2μA
DT3811-8 Current Loop Conditioner (Optional)
1 input channel
Suitable for 2-wire / 3-wire 4 ~ 20mA sensor
24V DC power supply
DT5942 Tachometer Card (Optional)
Number of channel：2 input channels
Range: 30 ~ 300000 rpm / 5 ~ 20000 rpm
PPR: 1 ~ 512
DT5944 Signal Source Output Card (Optional)
Number of Channel: 2 channels
Voltage Range: ±10VP
Current: Max. 5mA
Frequency: 0.1 ~ 20kHz
D/A Resolution: 24 bits
Accuracy: 1% within 2kHz
Signal type: constant frequency sine wave, sweep frequency sine wave, square wave, random, burst random
DT5943 Counter Card (Optional)
Number of channel：2 input channels
Access to various pulse output counter, used for measuring revolving speed, pulse or frequency
DT5945 CAN Bus Card (Optional)
Number of channel：2 channels
Protocol: CAN2.0B
Baud rate: 4800bps ~ 1Mbps
Communication mode: duplex CAN bus for sending and receiving
Minimum sending interval: 1s
Support dbc file import
Supports standard and extended frame formats
DT5947 Digital I/O Card (Optional)
Number of channel: 8-Ch DI or 8-Ch DO
Digital input: Support Dry/Wet Contact
Digital output: Power Output (Ch1-Ch4) and TTL Output (Ch5-Ch8)
Power Output: Max. 24V/1A
DT5611A Synchronization Box (Optional)
8 inputs
Built-in synchronization clock distributor
Support multiple clock box cascade connection
19" 1.5U chassis
C-4 Cable
4-core cable
Default 5m bare cable or 1.5 m cable with bridge box