High-Speed Digitizer Scope Application

Signatec’s digitizer Scope Application software is installed as part of the standard digitizer software installation. The digitizer Scope Application is used to control one or more Signatec data acquisition digitizers with a virtual oscilloscope application that allows the operator to view or edit all digitizer hardware settings as well as record and display acquisition data.

When the digitizer Scope Application starts, it will automatically connect to all local digitizer devices. Note that when the application starts up the digitizer hardware is not accessed. This allows the Scope Application to run without directly affecting any digitizer operation that may be in progress with other software.

If no physical digitizer devices are detected in the system, then a single ‘virtual’ digitizer device will be used. A virtual device is an imaginary device that is not connected to any real hardware. It’s implemented mainly as a software debugging tool, but also serves to show what the software can do when the hardware is present.

The Scope Application uses an MDI interface so each managed digitizer device will have its own window.

The Scope Application has the ability to connect to digitizer devices that reside on remote, non-local systems. The Scope Application software uses local TCP/IP services to connect to the remote digitizer server. With the exception of a few small user-interface differences, controlling remote digitizer devices isn’t any different from controlling normal, local digitizer devices. In order to work with a remote digitizer device, two pieces of software must be used: the client and the server. The client software is the Scope Application and the server software is the Signatec Service Manage; which must be installed, along with the normal digitizer software, on the server system (where the digitizer hardware resides).

The Scope Application may be used to modify any of the various hardware settings that affect how the digitizer behaves. These settings are distributed over the tabbed view at the bottom of the main device form.

The main interface is divided into three resizable panels. The top panel is the ‘Scope’ panel and is used to display digitizer acquisition data, data recording snapshots, and previously recorded data files. The Scope panel is capable of simultaneously displaying multiple data channels. The bottom-left panel is the ‘Control’ panel and is used to start and stop data acquisitions and recordings. The options on this panel have to do with controlling the digitizer operating mode. The bottom-right panel is the ‘Settings’ panel and is a tabbed view with various views that control the various digitizer hardware settings. Certain tabs are only displayed if the underlying digitizer device supports those features.

The Scope Application has the ability to do FFT analysis on digitizer (or file) data. FFT operations are performed on data sources that are currently displayed in the Scope panel and are displayed on the Frequency Domain (FFT) window. The FFT window is displayed by selecting the ‘Frequency Domain Window’ option in the View menu. The FFT window is divided up into two regions. The left side is a tab control that contains various FFT and time-domain statistics. There is one tab for each channel of data. The right side contains the frequency domain plots of all channels.