Technical Resources Whitepapers

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WHITEPAPERS

Technical Whitepapers

All the resources that you might need can be found below

Data Acquisition

Inverter Testing and Power Measurement

In this application, we discuss the use of electrical inverters in modern energy systems and highlights DEWETRON's state-of-the-art software and hardware solutions and cover the following points:

  • Inverter Measurement Basics
  • Dewetron's Measurement Technology
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Smarter Connections: The CAN Interface Revolution

In this application, we discuss the automotive CAN bus, how it works and how data can be acquired and cover the following points:

  • How does a CAN bus work?
  • Difference between CAN And CAN-FD
  • CAN communication
  • J1939
  • Acquiring CAN-transmitted data alongside other measurement data in a fully synchronised system
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Report Automation Via PYDMDREADER and Python

This whitepaper presents an automated approach to test report generation using Python and its libraries Watchdog, pyDmdReader, and FPDF. The automated test report generation process utilizing Python and its libraries – Watchdog, pyDmdReader, and FPDF – offers a quick and efficient solution for data analysis and report generation, enhancing the capabilities of our Oxygen software.

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From Analogue to Digital: Decoding Sensor Signals

This white paper outlines the fundamental role of a measurement chain, tracing the journey from physical variables to a digital signal suitable for input into a PC or microcontroller for visualization or further analysis. Key topics include the function of a measurement chain, the importance of sample-and-hold circuits, aliasing effects, and the differences between SAR and delta-sigma ADCs.

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PUREC Data Logger and STABLs Implementation

In this application note, we discuss the use of a PUREC data recorder to test a Battery Energy Storage System (BESS) and cover the following points:

  • Round Trip Efficiency Test
  • Harmonic Distortion Analysis
  • Fault Ride Through Test Including Standards Compliance
  • Use of PUREC Data Recorder and Oxygen Software as a Comprehensive Solution for Data Recording and Analysis
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Monitoring EV Charging Cycles

In this application note we cover the following points:

  • EV charger and connector types
  • DC vs AC charging differences
  • Using DAQ systems to test EV charger performance
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Usage of DEWE3-A4 in the TU Graz Racing PA

In this application note, we discuss the use of a DEWETRON DEWE3-A4 power analyzer for the development and testing of a formula student racing car. Particularly, we cover the following points:

  • DQ-axis current measurements in an inverter
  • System debugging and discharge verification
  • Servomotor comparison for the DRS drive
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NEXDAQ: Off Highway Vehicles

How can NEXDAQ help you with off highway vehicle applications and features of the NEXDAQ.

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NEXDAQ: Automotive Applications

How can NEXDAQ help you with automotive applications and features of the NEXDAQ.

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NEXDAQ AS A TOOL FOR CLOUD BASED DATA ACQUISITION

In this application note you will learn how DEWETRON's NEXDAQ data acquisition device can be used as a cloud based data acquisition tool in an automotive, aerospace and defense and industrial environment.

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FIBER OPTICS

In this whitepaper, we cover the following points:

  • Advantages of fiber optics
  • Fiber optic cable types – single mode & multi mode
  • Transmitter and receiver (SFP)
  • Selection of the appropriate switch and connecting the network
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THE DQ ANALYSIS FOR ROTARY FIELD MACHINES

In this whitepaper you will learn:

  • What the DQ analysis is?
  • The Clarke Transformation
  • The Park Transformation
  • How it is utilized in machine control
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WP Efficiency Map

In this whitepaper you will learn:

  • Precise visualization on of efficiency directly in OXYGEN
  • Easy configuration on with a few clicks
  • Online efficiency visualization
  • Correct on of wrong measurement points
  • Efficiency for each measured point in a color-coded map
  • Different operation modes: testbed-controlled, semi-automatic, manual use
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Power Analyzers for Electric Motor & Drive Systems

In this whitepaper you will learn:

  • New approaches in hardware and software technology
  • Modularity and adaptability
  • High-performance Power Analyzer meets dynamic demands
  • Simple selection on of the right measuring range vs. greatest possible dynamics
  • Dynamic and precise high voltage inputs
  • Avoiding wiring errors and time-saving configuration
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Distributed Measurement with Oxygen-Net

In this whitepaper you will learn:

  • Systems with almost unlimited channels
  • Prepare-And-Claim-Technology (PAC) for fast and efficient set up
  • Redundant storing
  • Auto SYNC-SETUP
  • Various SYNC possibilities PTP, IRIG, GPS
  • Remote Control (ie: from a wind tunnel)
  • DATA-Source via TCP/IP streams for 3rd party application
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Efficient Analyzation of Dynamic EV

In this whitepaper you will learn:

  • Determination of efficiency and loses during real drive, test bench and charging
  • State of the art recording of dynamic processes
  • Portable and flexible battery powered Power Analyzer with data acquisition incl. sensor supply
  • Synchronous calculation of all relevant input channels incl. several power groups for battery, inverter and multiple motor
  • Synchronous sampling up to 10 MS/s/ch
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Noise & Vibration Measurement

In this whitepaper you will learn:

  • Integrated noise and vibration measurement system
  • Compliant to ISO 3744
  • Fully Automated measurement procedure with user guidance
  • Spectrum analysis, RPM determination, Temperature logging
  • Data plausibility check
  • Data storage into existing data base
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Oxygen Zero Cross Detector

The Zero-Cross Detector is a part of the Oxygen Software (OPT-POWER) to correctly detect the fundamental frequency and each single Zero-Cross. To comply with the today's challenges (distorted signals, pulse-width modulated signals), a robust method was implemented, to fulfil the various properties.

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Dewetron Power Analyser for Electric Motors and Drive Systems

In this whitepaper you will learn:

  • New approaches in hardware and software technology
  • Modularity and adaptability
  • High-performance Power Analyzer meets dynamic demands
  • Selection of the right measuring range vs. greatest possible dynamics
  • Dynamic and precise high voltage inputs
  • Avoiding wiring errors and time-saving configuration
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Dynamic Power Analysis

In this whitepaper you will learn:

  • Learn the DEWETRON way of power analysis
  • Forget conventional power analyzers
  • Cycle-by-Cycle Analysis
  • High-Dynamic Range Inputs for continuous analysis
  • Deeper view on the dynamic system performance
  • Record every single sample for documentation
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Results of Harmonic Interactions of Chargers and PV Systems

The number of Photovoltaic-Systems used in electrical power systems is constantly rising. The efforts of the European Union's policy to increase the use of electric vehicles leads us to the question how photovoltaic inverters and electric vehicle chargers are interfering each other, if they are connected together. The major focus of this study is placed on the interaction of the harmonic current emission.

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Sensors

Understanding Absolute, Differential and Gauge Pressure Sensors

Most people are typically accustomed to dealing in gauge pressure, that is, pressure relative to the normal atmospheric pressure which surrounds us. As such, "absolute" pressure and absolute pressure sensor which measure pressure relative to a perfect can be somewhat confusing.

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Displacement Measurement of Bridge Pylons Using DC Accelerometers

Bridge Pylons serve an important role in the structural integrity of cable-stayed or suspension bridges and bridge structures. Increasingly these pylons need to be monitored for excessive movement especially in critical, exposed and coastal locations.

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Explaining the Difference Between Operating and Compensated Temperature for Pressure Sensors

Pressure sensors are used in a variety of applications where measuring pressure is necessary. However, the performance of a pressure sensor can be affected by changes in temperature. Therefore, it is important to understand the difference between operating temperature and compensated temperature when using pressure sensors.

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Pressure Accuracy Specifications

Pressure sensors are used in a wide range of applications, from measuring atmospheric pressure for weather forecasting to monitoring industrial processes and measuring blood pressure in medical devices. To ensure that these sensors provide accurate and reliable data, manufacturers typically provide specifications that describe the sensor's accuracy, sensitivity, and other performance characteristics.

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Mounting Accelerometers

Proper accelerometer mounting is critical to obtaining accurate and meaningful data. Mounting the accelerometer in the wrong location or in the wrong orientation can introduce errors and distortions in the measurements.

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