Pesquisa de Artigos e Documentos

This application note provides an application program for level alignment, test automation and reporting with PESQ, POLQA and delay measurements on the Audio Analyzer R&S®UPV or R&S®UPV66.

English - 8 de mai. de 2013

This application note provides a program which allows to record total harmonic distortion, single harmonic distortion factors and level with one generator sweep. The executable may be installed and used without caring about programming. The source code is provided as basis for custom modifications.

English - 15 de jul. de 2011

This application note is about measurement accuracy of the LCR-Meters R&S®LCX100 and R&S®LCX200. On the R&S®LCX100 and R&S®LCX200, the accuracy is calculated in real time, depending on the instrument settings and on the measured impedance. It is displayed on the lower part of the instrument display. If no test instrument is available, or information about the measurement accuracy at a certain measured impedance is sought without having a DUT at hand, this accuracy calculation tool provides the desired values.The document explains the background of the calculation and the prerequisites for installing and running the program. The installer provided installs the program on your PC.

English - 11 de mai. de 2023

This application note applies to DC power supplies R&S®NGL200, R&S®NGM200, R&S®NGP800, R&S®NGU201 and R&S®NGU401, as well as LCR meters R&S®LCX100 and R&S®LCX200. It provides an overview over ethernet-based remote services provided by the referenced R&S® instruments. These services comprise an instrument web page, VNC remote control and FTP file transfer between the instrument and a remote computer. The application note gives instructions on how to set up the instrument and the remote computer in order to be able to utilize these services.

English - 19 de mai. de 2022

This application note describes how measurement results can be logged over time in the audio analyzer R&S® UPV. A Visual Basic.NET application program is included which stores results to ASCII files.

English - 29 de jun. de 2012

This application note provides software and instructions for a simple check of the acoustic performance of mobile phones. It targets mainly service centers and repair workshops which have to perform incoming tests of defective mobile phones and final tests of repaired mobiles. A focus is set on short test times and ease of use, without compromising accuracy and repeatability of results.

English - 14 de dez. de 2017

This application note explains how to use the Audio Analyzer R&S UPV for measurements of maximum sound pressure level of headphones according to EN50332. It is possible to measure a combination of music player / FM receiver and headphones, the maximum output voltage of a player / FM receiver alone or the wideband characteristic voltage of headphones alone. An application program is available for download as installer file and as VB.NET project.

English - 16 de jun. de 2009

RSCommander is a versatile software tool for a wide range of Rohde & Schwarz spectrum-, network analyzers, signal generators and oscilloscopes. It allows for automatic instrument discovery, making screenshots, reading traces, file transfer and simple script creation.

English - 24 de dez. de 2017

The instrument setup provided in this application note allows to analyze a degraded speech signal stored into a wave file and to display its FFT spectrum and waveform.

English - 5 de set. de 2014

A large variety of measurements is performed in audio engineering in order to ensure transmission quality of analog and digital devices. An audio analyzer suitable for all these tasks will, therefore, incorporate a multitude of functions, resulting in a correspondingly large number of settings.This application note is to help test engineers using the R&S®UPP and R&S®UPV audio analyzers. It presents setting examples for all basic audio measurements to be performed immediately. For each setup, information is given on the type of measurement, the underlying standards, and on how to modify the graphic display results.

English - 7 de jul. de 2014

This application note gives background information about the psychoacoustic measurements PESQ® (Perceptual Evaluation of Speech Quality) and PEAQ® (Perceptual Evaluation of Audio Quality). It also describes how to perform these measurements using the Rohde & Schwarz Audio Analyzer.

English - 3 de abr. de 2009

English - 28 de jun. de 2018

This application note provides an application program and instructions for performing speech quality tests and delay measurements in a live network, using the R&S®UPV audio analyzer.

English - 14 de dez. de 2017

This paper reviews the classical spectrum analyzer measurement of L(f) and its shortcomings and discusses how modern phase noise test sets measure phase noise and avoid the limitations imposed by direct spectrum measurements.

English - 31 de mar. de 2020

This application program supports the logging and fast logging functionality of the power supplies R&S® NGM200, NGU201 and NGU401. Standard logging is also supported with power supply R&S® NGL200 and NGP800. Power supplies R&S® NGA100 and NGE100 are supported in the data collection mode. Charting functionality is available for logged voltage, current and power values.

English - 14 de nov. de 2019

Most application notes for audio analyzer R&S® UPV include an application program which runs locally using the universal sequence controller option UPV-K1. This application note explains how sequence control programs can be modified to run on a remote PC using remote control option UPV-K4.

English - 29 de jun. de 2012

All channels of DC power supplies R&S®NGL200 and R&S®NGM200 are isolated against the grounding equipment conductor and against the digital ground of the instrument. Therefore, channels can be connected in parallel for increasing the current capability, or in series for achieving higher voltages or dual-voltage supplies. In the case of parallel and serial connections it is usually desired to switch all channels simultaneously on and off for protecting the supplied circuitry and for avoiding overcurrent on other power supply channels.This application note describes how to connect and configure DC power supplies R&S®NGL200 and R&S®NGM200 for synchronized on and off switching of all channels across multiple power supplies.

English - 15 de jun. de 2020

Application program with documentation for sending a sequence of logged SCPI commands to the firmware of the R&S® Audio Analyzer UPV.

English - 19 de jul. de 2010

Acoustic properties like reverberation time and early reflections are important for test rooms as well as for speech intelligibility and music performance in assembly rooms and concert halls. This application note explains the basics behind these properties and offers an application program for their measurement.

English - 10 de jul. de 2012

R&S®VISA is a standardized software library that allows fast communications over diverse interfaces with a wide variety of T&M instruments that are detected on the network from PC applications. R&S®VISA also includes a trace tool that simultaneously monitors communications between multiple applications and T&M instruments, and permits targeted analysis with the aid of efficient filters.

English - 26 de mai. de 2020

This application note explains how to use acoustic calibrations in order to be able to enter or read sound pressure level directly in the Audio Analyzer R&S® UPV. An application program is described which performs the necessary measurements for the calibration of microphones and loudspeakers, manages the calibration values and enters them into any appropriate user defined setup.

English - 11 de out. de 2012

Source measure units R&S®NGU401 and R&S®NGU201 are capable of precise current measurements from sub-microampere up to ampere. This application note provides a tool which generates a voltage or current sweep using the arbitrary function of the instruments. A fast log captures voltage and current values during the sweep. Subsequently the application program determines the voltage and current value for each sweep step and plots the results in an I-V curve .The tool can be utilized to characterize all kinds of two-pole devices like diodes, LEDs and solar panels.This application note can also be used in connection with DC power supplies R&S®NGM201 and R&S®NGM202.

English - 15 de fev. de 2021

This application note provides an application program for the audio analyzer R&S®UPV which calculates and displays the loudness of non-stationary sounds according to ISO 532-1 (Zwicker method). The theoretic background of the evaluation method is briefly explained.

English - 14 de dez. de 2017

Rohde & Schwarz offers a wide range of essential lab equipment, like power supplies, LCR meters and power analyzers. To enhance the versatility of these instruments, a selection of application programs is available. These application programs typically remote-control equipment for more complex tasks like sweeps, logging and battery testing.In a larger lab there may be a larger number of such instruments present, and a selection of available application programs installed on a PC. In such a case it is desirable to have a kind of dashboard providing an overview over both, including version check and links to documentation on the Rohde & Schwarz website. The R&S® application dashboard for power supplies and meters is providing this functionality. The application document contains the description and user manual for the software. Furthermore a package is provided containing installers for all related application programs.

English - 13 de set. de 2024

This application note is about creating your own battery model for the R&S®NGM200 or R&S®NGU201, beyond the standard models provided within the battery simulation option NGM-K106. The main purpose is to gradually discharge a battery or a rechargeable battery using the internal QuickArb function. The discharge of the battery can then be recorded using the fast data logging functionality FastLog. The recorded data are stored in a .CSV file. This file can then be adapted to be used as a battery model in the battery simulation mode of the R&S®NGM200. For this purpose, Rohde & Schwarz provides a tool for developers to make their work easier. This tool calculates all the data required for a battery model.Note: More advanced tools are available with application notes 1GP130 (Battery Cycle Tool) and 1GP136 (Battery Simulation).

English - 26 de jul. de 2023

The ARB Toolbox is an easy-to-use, feature packed software package that is used for many ARB waveform related tasks. Use this software for creating ARB waveform files from custom IQ data; import data from MATLAB .mat files; evaluate waveform content graphically; resample or filter waveforms; create analog modulated signals as ARB files; edit marker data in waveform files; use the composer for the creation of complex multi carrier scanarios.

English - 13 de dez. de 2018

This application note is about creating your own battery model for the R&S®NGM200 and R&S®NGU201, beyond the standard models provided within the battery simulation option NGM-K106 and NGU-K106. To get to a battery model, a few steps are required. To determine the parameters for the battery model, it is necessary to discharge a battery using a selected method, to record the data and to calculate the model on this basis. With this software, a connection can be established to the instrument, batteries can be measured using various measurement methods, and a model can then be created from these measurements. These models, which are determined from the measurements, can then be simulated with the power supply, thus creating a digital twin of the battery. Using these, test scenarios can be carried out in a safe and reproducible environment.

English - 21 de nov. de 2022

The LCR meters R&S®LCX100 and R&S®LCX200 precisely measure the complex impedance and the resulting components values over a wide frequency range. Dynamic impedance measurements allow to perform these measurements while sweeping the test signal frequency or other parameters like test signal level and DC bias. This application note provides a PC-based software tool for comfortably setting the sweeps and displaying the results in numerous charts.

English - 14 de mar. de 2022

This Application Note describes how the R&S® UPV and R&S® UPP200 audio analyzers can be used to replace the obsolete Agilent model 8903B audio analyzer in remote control applications.

English - 24 de nov. de 2010

This application note provides a tool for printing a report about measurement results on the audio analyzer R&S® UPV. The executable can be freely configured to include any result graphs and figures into the report. In addition it is an application example for a class library which can be included into custom application programs to add a printing function.

English - 18 de jul. de 2011