Capacitive Touch - Multifunctional Digital Controller

Project Description

Ultrasonic Power Corporation head quartered in Freeport, IL is a leader in precision ultrasonic cleaning technology. They offer a full line of standard ultrasonic cleaning systems ranging from bench top units to portable systems

Ultrasonic Power Corp wanted to design a multifunctional digital control panel which offers operators a unique, fully-integrated method for controlling and viewing all system functions like

  • Time
  • Temperature
  • 7-day scheduled heat timer
  • Pump
  • Ultrasonic intensity
  • Low liquid level detector

They also wanted to use state-of-the-art capacitive touch technology that is completely water-proof, easy to operate and backward compatible with all future console systems.

They also wanted an “on board” diagnostic system which uses software and various sensing circuits to monitor functions like transducer status and generator status. This diagnostic system would validate operations and display an error signal if a problem should occur.

We proposed a film based capacitive touch interface design complete with graphic overlay, conductive film and PCB with the touch electronics for the digital control panel. Upon hearing that we would be designing a PCB and electronics for the touch interface, they gave us a chance to design the whole machine control system electronics for them.

We brought immediate value to the effort by gathering all the requirements and creating a story board on how the system would operate. A modified version of this document is currently being used as the equipment user guide / manual by UPC.

We then translated these high level requirements to develop hardware and software architecture for the digital control panel. The resultant design not only aligned with the customer requirements, but also had provisions for a USB connector which can be connected to a PC for component testing during production and chances for future expansion via an Ethernet connection.

Our meticulous implementation and comprehensive component, functional and integration test procedure to ensure alignment with client requirements resulted in UPC’s product transition as shown in the picture below

Complete Ultrasonic Touch Control System

SONIC TOUCH™ and SOVI™ will be integral to all of Ultrasonic Power Corporation’s standard console series, featuring Model 3218 (39 gallons), Model 4822 (90 gallons), Model 5424 (135 gallons) and its newest and largest standard size tank system the Model 7028 (204 gallons).

Click here to read the Ultrasonic Power Corp Press Release that was released on Mar 30, 2010

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