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Drive Electronics

The JetDrive™ III drive electronics is designed to provide complex drive waveforms to MicroFab’s MJ microdispensing devices. It is computer controlled via serial communications (RS-232) and an external trigger is provided for real-time control during printing operations. An output to drive an LED strobe for drop observations is also provided, including a delay that is controlled either through the computer interface or a knob on the front panel. A Windows® based control program (JetServer™) is provided, along with the command set for customers who want to integrate control of the JetDrive™ III into their own software. An optional LabView® sample program is available. The JetDrive™ III comes in single output and multiple output configurations.

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JetServer

The JetServer™ program is designed to control the JetDrive™ III family of drive electronic units. A graphical user interface is provided to set the operating parameters for MJ piezoelectric dispensing devices. These can be saved and retrieved interactively in a format fully compatible with the control program of Jetlab® Printing Platforms. Multiple MJ devices can be controlled using a multi-channel version of the JetDrive™ III or a single-channel unit multiplexed by a relay board. With optional frame grabber hardware and image processing software, automated measurements of drop diameter, drop velocity and direction in one camera view can be performed. The Windows® version of JetServer™ ships with each JetDrive™ unit. A LabView® sample version is available as an option.

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Image Analysis

alt Custom image analysis routines are enabled in the JetServer™ and Jetlab® control programs by adding a runtime version of the Aphelion image analysis software to a subsystem using a Jetdrive III and video capture or to a Jetlab® Printing Platform. These routines allow for:
  • improved and additional calibration / alignment options;
  • measurement of droplet size, velocity and trajectory polar angle from vertical direction; and
  • surveying of printed spot patterns (Jetlab® Printing Platforms).
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