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Archive for December, 2020

Programming Example: Performing a series of measurements with an SDM and Scan Card

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Here are a list of recommended commands for programmatically executing a scan with a SIGLENT SDM3055 or SDM3065X with scan card option (formerly the SC1016 option) NOTE: # indicates a comment. You may need to change this symbol, depending on which programming environment you choose to use. The commands, shown in quotes, will need to be sent using the appropriate function call for the program...

Measuring Power Supply Control Loop Response with Bode Plot II

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Stability is one of the most important characteristics in power supply design. Traditionally, stability measurements require expensive frequency response analyzers (FRA) which are not always available in a laboratory. Now, using a Siglent oscilloscope, like the SDS1204X-E with the newly released Bode Plot Ⅱ software, together with a Siglent arbitrary waveform generator (SDG or SAG) and a Picotes...

Quick remote computer control using LXI Tools

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Introduction: There are many options for people considering remote communication and control of test and measurement instrumentation. In most cases, a computer is used to communicate to test instrumentation using USB or LAN connections. The computer can configure the instruments, collect and organize data, and present it in a useful and flexible way. Remote control provides: Inc...

Programming Example: Using Python to configure a basic waveform with an SDG X series generator via o

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
#!/usr/bin/env python 2.7.13 #-*- coding:utf-8 –*- #—————————————————————————– # The short script is a example that open a socket, sends basic commands # to set the waveform type, amplitude, and frequency and closes the socket. # #No warranties expressed or implied # #SIGLENT/JAC 11.2018 # #——————————————�...

Python Example: Building an Arb with 16-bit steps (SDG2000X/SDG6000X)

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
The SIGLENT SDG2000X and SDG6000X feature 16-bit voltage step resolution. This provides 65,535 discrete voltage steps that can cover the entire output range (20 Vpp into a High Z load) which can effectively be used to test A/D converters and other measurement systems by sourcing waveforms with very small changes. In this example, we use Python 2.7 and PyVISA 1.8 to create a ramp waveform that i...

Resolver Simulation using an Arbitrary Waveform Generator

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
A resolver is an electromagnetic sensor that is used to determine the mechanical angle and velocity of a shaft or axle. They are often used in automotive applications (cam/crankshaft position), aeronautics (flap position), as well as servos and industrial applications. When designing, testing, or troubleshooting systems that use resolvers, it can be worthwhile to build a system that can easy si...

The basic output waveform and related parameters of the arbitrary waveform generator

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Traditional function generators can output standard waveforms such as sine waves, square waves, and triangle waves. However, in actual test scenarios, in order to simulate the complex conditions of the product in actual use, it is often necessary to artificially create some "irregular" waveforms or add some specific distortion to a waveform. Traditional function generators can no longer meet the r...

Quickly Monitor FM Deviation using a Spectrum Analyser

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Spectrum analysers are very useful tools for observing radio transmissions. One of the more common applications is to monitor a known channel or band of frequencies. In this note, we are going to show how to quickly capture an FM radio transmission and then configure the analyser to provide us with the frequency deviation of that signal. NOTE: If you are unsure of the power of the signal that y...

Electromagnetic Compliance: Troubleshooting with Near-Field and Current Probes

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Electromagnetic interference (EMI) can cause a host of problems, especially when developing a product or attempting to pass mandatory electromagnetic compliance (EMC) tests. Garbled displays, bad data, or complete malfunctions can occur when a design is effected by EMI. To minimise the effects of interference, government agencies like the Federal Communications Commission (FCC) in North America cr...

Spectrum Analyser Basics: Bandwidth

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Spectrum analysers are useful tools for broadcast monitoring, RF component testing, and EMI troubleshooting. There are a number of common adjustments available with many modern analysers that can optimize performance for a particular application. In this application note, we will introduce resolution bandwidth (RBW) and video bandwidth (VBW) and how they affect measurements. Resolu...

Spectrum Analyser Basics: Detectors

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Spectrum analysers like the SIGLENT SSA3000X Series have a number of available detector selections that can help you observe specific signals of interest. This operating tip provides a brief description of the available detector types and suggested usage. BASICS: The SIGLENT SSA 3000X Series spectrum analysers normally display power versus frequency on a Cartesian coordinate s...

Electromagnetic Compliance: Measuring Conducted Noise with a Tekbox LISN

Posted on: December 15th, 2020 by Doug Lovell

15/12/2020
Our friends at Tekbox have a nice app note that provides details on performing conducted noise measurements using a SIGLENT SSA3000X Spectrum Analyser: Tekbox Conducted Noise with a LISN Note...

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