1. Althen Sensors
  2. Measurement Systems
  3. Pressure and temperature measurement system
  4. Hot-wire measurement systems
  5. sDAQ-Set Data Acquisition System

sDAQ-Set Data Acquisition System

Data Acquisition System with 1 channel hot-wire measurement technique


Key features

  • 8-channel data acquisition system with 16-bit resolution
  • 1x eCTA hot-wire bridge + 2x HWP10 hot-wire probes
  • 1x PT100 temperature sensor

About the sDAQ-Set Data Acquisition System

The sDAQ data acquisition system is specifically designed for experiments in the field of fluid mechanics and aerodynamics.

An 8-channel data acquisition card with 16bit resolution from the company National Instruments is the centrepiece of the device. The in- and outputs of the card are adjoint with plug-in connectors which allows the direct connection of the sensors that are supplied with the product. The necessary sensor supply is already connected with the connectors. The remaining analogous in- and output are placed onto BNC sockets. The connection to the computer consists of a USB interface. 

An easy data acquisition software is included in the delivery. With this software the data acquisition card can be configurated, the values can be read, and the physical units can be converted and saved. The data acquisition software is written in LabVIEW 2015 and is delivered as independently executable program as well as source code. Based on this program easy adaptations towards the respective measurement task can be made. For this purpose, the program package LabVIEW 2015 or higher from National Instruments is necessary which is not included in the delivery.

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Technical Specifications

Specification Value
Data acquisition / 8x analogue input 16 bit, ± 10 V, accuracy ±6 mV, total sampling rate 50 kS/s kHz
2x analogue output 16 bit, ± 10 V, accuracy ±7 mV, update rate 5 kS/s
8x digital in-/outputs TTL (0-5 V)
1x Counter 32 bit / 5 MHz, TTL (0-5 V)
Further internal components / PT100 amplifier 0…300° C default, configurable
Barometrical pressure sensor 800…1100 hPa
CTA-Mainboard Supply eCTA and signal conditioning HD
Connections / 1x PT100 temperature sensor Binder Serie 712, 5 pin
1x eCTA hot-wire probe Binder Serie 712, 7 pin
2x ePressure pressure sensor Binder Serie 712, 4 pin
3x analogue input BNC
2x analogue output BNC
8x digital in- and output D-Sub, 9 pin
1x Audio 3.5 mm audio jack (30 Ohm)
Supply Binder Serie 712, 2 pin
Scope of delivery – set 1x sDAQ / 1x plug-in power supply 12 V / 1 A / 1x Pt100 temperature sensor / 1x eCTA hot-wire bridge / 2x HWP10/90 hot-wire probe / 2x ePressure differential pressure sensor, pressure range at buyer’s option / 1x headphone / 1x carrying case / SVMdaq software for the recording of the measured values