Leading the Way in DAQ Systems

Keysight has provided data acquisition systems (DAQ) and switching solutions for more than 25 years. Use Keysight DAQ systems for electrical, physical, mechanical, acoustic, and signal routing applications. Gain confidence in your measurement results with Keysight DAQ systems.

  • Get the best value with high-quality switching and measurements in compact, cost-effective solutions
  • Use industry standards with modular LXI and VXI solutions
  • Enjoy the included BenchVue software to collect, analyze and present your data in real-time
Data Acquisition System - Practical Temperature Measurements Using a DAQ

Techniques and Procedures to Measure Temperature Accurately

Does your application need accurate and reliable temperature measurements? How do you know that your setup is measuring temperature accurately?
Keysight data acquisition systems incorporate many desirable features for accurate temperature measurements, such as:

  • An integrating A/D for noise rejection.
  • A low-thermal scanning with built-in thermocouple reference junctions.
  • An open thermocouple check.
  • A built-in thermocouple, thermistor, and resistance temperature detector (RTD) linearization routines with ITS-90 temperature conformity standards.
  • A four-wire ohm function with offset compensation.
  • Multiple isolated inputs that float up to 300 V.

Read the application note and learn the practical considerations of transducer placement, signal conditioning, and instrumentation for accurate results.

BenchVue Software on a Laptop

Control, Automate, and simplify with BenchVue

Keysight BenchVue software eliminates many of the issues around testing. By making it simple to connect, control instruments, and automate test sequences, you can quickly move past the test development phase and access results faster than ever before with just a few clicks.

  • Configure the most commonly used controls and measurements from instruments
  • Easily log and export data and screen images in just a few clicks for faster analysis
  • Create automated test sequences fast with minimal instrument knowledge

Frequently Asked Questions About Data Acquisition (DAQ) Systems

What is DAQ?

A data acquisition (DAQ) system consists of a collection of hardware and software for sampling physical parameters such as voltage, current, temperature, and strain with a sensor or transducer. The system enables engineers to condition and convert samples into digital data for capture, live monitoring, and analysis.

Learn More
Getting Started With Data Acquisition Systems

How do you use a DAQ?

A DAQ system is typically used for three main purposes: characterizing products, monitoring processes or products, and controlling test processes.

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Use Cases for Data Acquisition Systems

What is the difference between a static and a dynamic DAQ?

A static DAQ generally takes a single measurement as it scans through each input channel. It takes a measurement or measurements (if it has multiple input channels) at a fixed sampling rate suitable for slow-changing measurements such as temperature or humidity. However, a dynamic DAQ takes multiple samples of measurements in a quick successive manner for each of its input channels to capture fast-changing signals such as vibration, acoustic, or structural stress signals.

What does a DAQ data logger do?

A data logger captures and logs data based on the scan interval, and the data logging period. A DAQ system can perform data logging efficiently with multiple input channel switch multiplexers, built-in signal conditioners, and control systems to help automate the capture of signals from sensors.

What is the benefit of a dynamic DAQ?

A dynamic DAQ can sample a single or multiple sensors’ dynamic signals at a high sampling rate using its built-in hardware signal digitizer. Hence, it can capture transient signals of voltage, current, vibration, or structural stress changes. A modern DAQ has a built-in fast Fourier transform (FFT) mathematic algorithm to transform a time-domain signal display into a frequency-domain signal display. An engineer can then analyze the dynamic signal in both the time and frequency domains.

Read the White Paper
Making Dynamic Data Acquisition Measurements

Extend Your Capabilities with the Right Tools

Technology is constantly changing. So too are the requirements engineers face. Get more functionality out of your existing hardware today by complementing it with the right accessories to improve productivity and the right Keysight PathWave design and test automation software to accelerate your product development.

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