Jitter spectrum measurements with a digital oscilloscope
February 21, 2022
Clockworks Signal Processing released an application note that measures jitter using a SIGLENT XE series of oscilloscopes. The basic idea is simple enough – measure the clock edges and see if they are all exactly evenly spaced or if they change (jitter) over time. A non-uniform clock fed to an ADC or DAC will produce … Continued
Oscilloscope Feature and Options Table
January 11, 2022
SIGLENT has a number of oscilloscopes to help fit your application needs and budget. Here is a table of features and options of our most powerful oscilloscopes to help decide what is best for you. S – Standard, included O – Optional (1) – Bode requires a SIGLENT SAG, SDG, or internal function generator to … Continued
Oscilloscope Remote control TEK emulation mode
July 27, 2021
Overview This application note describes the features and usage of the Tektronix compatibility mode for remote control of the SIGLENT SDS5000X and SDS6000A oscilloscope series. In many cases, a SIGLENT SDS5000X/6000A scope can replace a similar Tektronix product without many changes to the existing code. Furthermore, it describes in detail the limitations of the individual … Continued
Programming Example: SDS Oscilloscope save a copy of a screen image via Python/PyVISA
February 26, 2020
Here is a brief code example written in Python 3.4 that uses PyVISA to pull a display image (screenshot) from a SIGLENT SDS oscilloscope via USB and save it to a drive on the controlling computer. NOTE: This program saves the picture/display image file to the E: drive, which may or may not exist on … Continued
Programming Example: Identification String (*IDN?) return with LabVIEW 2018
December 16, 2019
This LabVIEW VI (version 2018) provides a simple platform to begin creating LabVIEW programs. You can download the VI here: VISA_IDN.ZIP In this example, the user can: Select the connected instruments from the VISA Resource List drop down menu: NOTE: USB devices will automatically appear. For LAN connections, you will need to add the device. … Continued
Measuring Power Supply Control Loop Response with Bode Plot II
May 24, 2019
Introduction 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. SIGLENT has released Bode Plot Ⅱ features to the SIGLENT SDS1104X-E, SDS1204X-E, SDS2000X-E, SDS2000X Plus, SDS5000X, and SDS6000A series of oscilloscopes. When combined with a … Continued
Programming Example: Using VXI11 (LXI) and Python for LAN control without sockets
October 3, 2018
In an effort to meet the demands of remote monitoring and control, modern test instrumentation is leveraging more communications busses and than ever before. Each type of bus can also have numerous layers that can be utilized for specific advantages. The VXI bus and subsequent software drivers form a convenient software API that can make remote control … Continued
Bode Plot of a filter using an oscilloscope and function generator
September 12, 2018
A Bode plot is a method of graphically displaying the frequency response of a system or device-under-test (DUT). Commonly, the magnitude and phase response of the device are plotted with respect to frequency using a shared horizontal frequency axis as shown in the example below: By showing both the magnitude and phase information on … Continued
Programming Example: List connected VISA compatible resources using PyVISA
August 30, 2018
PyVISA is a software library that enables Python applications to communicate with resources (typically instruments) connected to a controlling computer using different buses, including: GPIB, RS-232, LAN, and USB. This example scans and lists the available resources. It requires PyVISA to be installed (see the PyVISA documentation for more information) *** ***** Here is the … Continued
Verification of a working remote communications connection using NI – MAX
September 29, 2017
Automating a test can dramatically increase the productivity, throughput, and accuracy of a process. Automating a setup involves connecting a computer to the test instrumentation using a standard communications bus like USB or LAN and then utilizing code entered via a software layer (like LabVIEW, .NET, Python, etc..) to sequence the specific instrument commands and … Continued