The user opens WFMReader, clicks File → Open , and selects the WFM file. The software parses the binary header.
"WFMReader" is a specialized software utility designed for the visualization, analysis, and conversion of files. These binary files are commonly generated by digital oscilloscopes, logic analyzers, and other electronic test equipment—particularly those manufactured by Tektronix , though the format is also supported by other vendors like LeCroy and Keysight under similar naming conventions.
WFMReader serves a critical niche for engineers, educators, and technicians who need to extract meaningful measurements from proprietary oscilloscope waveform files without relying on expensive vendor software. By providing decoding, visualization, and standard export formats, it transforms opaque binary data into actionable insights.
The primary purpose of WFMReader is to bridge the gap between proprietary instrument data and standard personal computer analysis tools (e.g., MATLAB, Python, or Excel). This report outlines the file format, core features, typical workflow, and applications of WFMReader.
The processed waveform is exported as pulse_analysis.csv and opened in Excel for report generation.
| Feature | Description | |---------|-------------| | | Open single or multiple .wfm, .isf, .trc, .bin files | | Metadata Extraction | Display acquisition settings (sample interval, vertical gain, offset) | | Waveform Rendering | Plot time vs. voltage with auto-scaling and zoom | | Cursor Measurements | Manual or automatic delta-time, delta-voltage, frequency | | Data Export | Save to CSV, TXT, MAT (MATLAB), or NPY (NumPy) | | Math Functions | FFT, integration, differentiation, addition/subtraction of channels | | Batch Processing | Convert hundreds of WFM files to CSV in one operation |
A user captures a waveform on a Tektronix MDO3000 series oscilloscope and saves it to a USB drive as waveform.wfm .
WFMReader typically offers the following capabilities: