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High Accuracy Dynamic DAQ System - DE-928U
High Accuracy Dynamic DAQ System - DE-928U

High Accuracy Dynamic DAQ System - DE-928U High Accuracy Dynamic DAQ System - DE-928U

DE-928U High Performance Dynamic Signal Test and Analysis System is specially designed for the accurate measurement of various physical quantities, such as stress, strain, force, pressure, displacement, velocity, acceleration and temperature. Expanded via Gigabit Ethernet switch, dynamic signals over 1,000 channels can be synchronously tested and analyzed by a single computer.

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  • Product Description
  • Specifications
  • System Configuration
  • Software
  • Modules／Accessories

 Dedicated DSP real-time signal processing system per channel

 Independent 18-bit SAR A/D converter per channel with sampling rate of up to 1MHz.

 DMA for real-time, high speed, stable data transmission.

 Built-in bridge completion and excitation

 Built-in 24V/4mA biasing circuit, support IEPE sensors.

 Built-in low-pass filter and anti-aliasing filter

 Suport EID and TEDS

 On-site calibration of stress/strain channels is supported to get the current state quickly


Number of Input Channel2 channles/card, 8/16 card slots
Input CouplingGND, Dif-DC, Sin-DC, AC, Dif-IEPE, Sin-IEPE
Input Impedance30MΩ//100pF
Full-scale Voltage Value±0.005V, ±0.01V, ±0.02V, ±0.05V, ±0.1V, ±0.2V, ±0.5V, ±1.0V, ±2.0V, ±5.0V, ±10.0V
Indication Error≤0.05% of F.S.
Stability<±0.01%/24h
Nonlinearity0.01% of F.S.
Noise≤3μVRMS
Zero Drift<1μV/24h
CMV<±10V@DC ~ 60Hz
CMR≥100dB
Strain Measurement
     Full-scale Strain Value±1000με, ±10000με, ±100000με
     Indication Error≤0.1%±3με
     Self-Balancing Range±20000με
Bridge Excitation
     Bridge ConfigurationFull, Half, Three-wire quarter bridge
     Bridge Completion Resistors120Ω/350Ω (Three-wire quarter bridge)
 50Ω~10000Ω (Half bridge/Full bridge)
     Bridge Voltage2V, 5V, 10V, 24V DC Within 0.05%
     CurrentMax. 50mA
LPF
     Cut-off Frequency (-3dB±1dB)100Hz, 300Hz, 1kHz, 3kHz, 10kHz, 30kHz, 100kHz, PASS
     Flatness<0.1dB Within 2/3 of cut-off frequency
     Stop-band Attenuation- 24dB/Oct.
CommunicationGigabit Ethernet
A/D Converter18-bit SAR
Freq. ResponseDC ~ 300kHz (+0.5dB~-3dB)
Max. Sampling Rate1MHz/channel
Anti-aliasing filter
     Filtering ModeAnalog filter and real-time digital filter
     Cut-off Frequency1/2.56 of sampling rate
     Stop-band Attenuation- 120dB
     Flatness:<0.1dB Within analysis frequency range
Power Supply100 ~ 240VAC / 10 ~ 30VDC, 160W (16 channles) / 320W (32 channles)
Dimensions
     Semi-19" Chassis237×133×338mm
     19" Chassis482×133×338mm
Weight
     Semi-19" Chassis (16 channels)Approx. 8kg
     19" Chassis (32 channels)Approx. 14kg
Environmental Conditions
     Operating Temperature-10°C to 50°C
     Operating Humidity20 ~ 90%RH@40°C
     Storage Temperature- 40°C to 60°C
     Storage Humidity90%RH24h@50°C
     Vibration
Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz
Drive amplitude (peak): 0.19mm
Sweep frequency: ≤1Oct./min
Duration of resonant: 10min
Vibration direction: x, y, z

Figure 1 Single system block diagram


Figure 2  Multi-system block diagram



 DE-BPS 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..



 DE-928U DAQ Card

  • 2 input channels

  • Support GND, Dif-DC, Sin-DC, AC, Dif-IEPE, Sin-IEPE, three-wire 1/4 bridge, 1/2 bridge and full bridge Input

  • Software-selectable full-scale voltage value from ±0.005V to ±10.0V

  • Full-scale strain value from ±1000με to ±100000με

  • Independent 18-bit SAR A/D converter per channel with sampling rate of up to 1MHz

  • Frequency response range from DC to 300kHz

  • CMRR over 100 dB
 DE-92U Semi-19" Chassis

  • 8 card slots

  • Including control card,  Gigabit   Ethernet communication Interface

  • 220VAC / 12VDC power supply
 DE-93U 19" Chassis

  • 16 card slots

  • Including control card,  Gigabit   Ethernet communication Interface

  • 220VAC / 12VDC power supply
 DT5857-8 Charge Conditioner (Optional)

  • 1 input channel

  • Max. input charge: 105pC

  • Input Impedance: >1011Ω

  • Amplifier output sensitivity: 0.1mV/pC and 10mV/pC

  • Indication error: <1%

  • Noise: <10×10-3pC

  • Max. bandwidth: 0.3Hz ~ 300kHz (+0.5dB ~ -3dB)

  • Distortion: <0.5％（<30kHz）

  • Dimensions: 40mm(W)×20mm(H)×110mm(L)

 DT5855-8 Charge Quadratic Integral Conditioner (Optional)

  • 1 input channel

  • Max. input charge: 105pC

  • Input Impedance: >1011Ω

  • Amplifier output sensitivity: 0.1mV/pC and 10mV/pC

  • Accuracy: <1%

  • Noise: <10×10-3pC

  • Freq. Response: 0.3Hz ~ 300kHz (+0.5dB ~ -3dB)

  • Distortion: <0.5% (within 30kHz)

  • Integral Type: No integral, Primary integral, Quadratic integral

  • Integral Frequency Range: 

        Primary integral: 10Hz ~ 10kHz or 1Hz ~ 1kHz

        Quadratic integral: 10Hz ~ 1kHz or 1Hz ~ 100Hz

  • Integral Error：

        Primary integral: <3%

        Quadratic integral: <5%

  • Dimensions: 50mm(W)×35mm(H)×110mm(L)
 DT5856-8 IEPE Quadratic Integral Conditioner (Optional)

  • Built-in 4mA/24V biasing circuit

  • Freq. Response: 0.3Hz ~ 100kHz (+0.5dB ~ -3dB)

  • Distortion: <0.5% (within 30kHz)

  • Integral type: No integral, Primary integral, Quadratic integral

  • Integral Frequency Range: 

        Primary integral: 10Hz ~ 10kHz or 1Hz ~ 1kHz

        Quadratic integral: 10Hz ~ 1kHz or 1Hz ~ 100Hz

  • Integral Error：

        Primary integral: <3%

        Quadratic integral: <5%

  • Dimensions: 50mm(W)×35mm(H)×110mm(L)
 DT3811-8 Current Loop Conditioner (Optional)

  • 1 input channel

  • Suitable for 2-wire / 3-wire 4 ~ 20mA sensor

  • 24V DC power supply

  • Dimensions: 30mm(W)×20mm(H)×80mm(L)
 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

  • Dimensions: 30mm(W)×20mm(H)×80mm(L)

 TC-01 Tachometer/Counter Module (Optional)

  • Number of channel：2 input channels

  • Rotation rate measurement：

        Range: 30 ~ 600000 rpm
        Accuracy: ˂ 0.05%±1r
        Input signal pulse width: ≥10μs
        PPR: 1 ~ 4096

        Axis ratio: 0.01 ~ 100

  • Counter measurement：

        Operating mode: support positive/reverse, pulse accumulative count, pulse count per unit time
        Reset mode: manual/atuomatic   

        Pulse count range: 0 ~ 100k/s

  • Power supply: 5VDC/50mA
 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
 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

  • Support dbc file import

  • Supports standard and extended frame formats

  • Minimum sending interval: 1s
 DT5946 RS485 Communication Card (Optional)

  • Number of channel：2 channels

  • Baud rate: 1200bps ~ 115200bps
 DT5947 Digital I/O Card (Optional)

  • Number of channel: 8-Ch DI and 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

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