Recording scopes file direct to MATLAB

May 08, 2015 // By Graham Prophet
Yokogawa has released firmware Version 3.20 for the DL850 ScopeCorder series of instruments, which combine the features of a high-speed oscilloscope and those of a traditional data acquisition recorder in a single, portable instrument.

A key feature of this firmware is direct file saving into the Mathworks MATLAB data analysis and visualisation environment, offering users quicker and easier import of measurement data. By supporting MATLAB's .MAT file format on the ScopeCorder, the measurement results can be conveniently imported into MATLAB more speedily and with smaller file size. The .MAT file format on the ScopeCorder is compatible with Level 5 MAT-files, the latest file format from MATLAB.

Other new features include support of an external USB printer for printing on long rolls of paper, and a "sure delete" function for erasing data from the ScopeCorder's hard disc drive where this is required for security reasons.

In order to support customers who require direct printout of measurement data, such as users of Yokogawa's earlier SL1400 and OR1400 recorders, the new firmware enables the DL850 ScopeCorder to reprint measurement results on A4 size roll paper using a Brother PJ623/PJ663 USB printer. Typical customers requiring this facility are found in nuclear power stations and marine applications.

Version 3.20 firmware also enables the measurement data in the internal storage devices of the ScopeCorder to be deleted completely before leaving a test site. This scenario is sometimes required for security reasons in applications such as government research or in companies working on confidential projects.

In addition to these new capabilities, the Version 3.20 firmware also incorporates a number of enhancements to existing capabilities of the ScopeCorder DL850, including the ability to store GPS position information, an extra fifth division to the T-Y waveform display, an "infinite" setting for the number of e-mails sent in the "action on trigger" menu, and the addition of a 1A:1V setting to the current probe attenuation.