Conduvection System Project

Elliott Tech designed the control software for a new tray retherm system in the Healthcare market.  This new system includes a state-of-the-art embedded controller, a 20-tray meal delivery cart, and a stand-alone controller/chiller.  The tray system is a high-tech system which employs new heating methods not previously used in the marketplace.  The system outperforms current systems on the market, providing high quality product to the customer.  A project team consisting of the Customer and key ETI personnel were employed for this project's success.

Force Gauge Project 

The Force Gauge Project involves the creation of a new line of products based upon an Intel 16-bit microcontoller that retain the desirable features and options of existing models, while improving performance, manufacturability, testability, and upgradability.  Establishing a common framework of sub-circuits, software modules, and assembly/test processes for the new product line, while still maintaining limited backwards compatibility, was a central goal of the redesign effort.  New design features included true low-power design techniques throughout, microprocessor-based offset and gain control-using precision Digital-to-Analog Converters for high-precision (16-bit) analog interfaces, and FLASH-based program storage with the ability to perform in-system software updates.  Design for test and support for in-system diagnostics functions aids in manufacturing tests and system calibration.  Additionally, new component selection was optimized for automated assembly.

The software for this project is a flexible, modular C-based system with well-documented low-level interface routines and increased functionality capable of supporting existing features and planned upgrades.  Software was designed in a modular fashion, allowing functions and features to be incrementally added across the product line.  Software also has specific features to improve manufacturing and calibration procedures, including self-diagnostics.  There is integral support for non-volatile storage of user-recorded data, configuration information, and operating profiles.  Also, the software allows access to increased system memory through its support of “paging", with additional routines that allow in-system software changes and upgrades.

Programmable Industrial System Monitor

The Programmable Industrial System Monitor provides information regarding Fire Pump controls in buildings such as hi-rise hotels. This device has an alphanumeric display, EEPROM, 110VAC inputs/outputs, serial printer, and RS-485 communications to PC and to external devices. The PIC 17C44 processor was used for this design.  The PC program provides the necessary programming of the device such as messages and limits as well as uploads data from the device. 

3-Phase AC Motor/Pump Power Monitor

The 3-Phase AC Motor/Pump Power Monitor is an embedded microcontroller product that performs comprehensive real-time monitoring of 3-phase AC power for critical industrial pump installations.  The Power Monitor interfaces to three-phase AC power and determines signal frequency, RMS voltage, RMS current, and phase relationship, in real-time, for each individual phase.  The device communicates with the Programmable System Monitor (described above) via an RS-485 communication link, serial non-volatile memory, a real time clock/calendar, analog signal conditioning circuitry, and an A/D converter.

Process Control/Alarm Project

The Process Control/Alarm is an industrial temperature chamber controller utilized for control of both temperature and humidity levels.  The device contains 4 4-20mA interfaces, 110V control inputs and outputs, and EEPROM.  It is based upon a Microchip PIC16C67 microcontroller.

Tank Monitoring System

The Tank Monitoring System provides tank level monitoring and leak sensor monitoring of underground storage tanks at Gas Stations.  This device contains a Graphic Touch screen, Flash memory, A/D’s, High-Speed counters, Fax/Modem, parallel printer interface, RS-232 Port, and PC Program interface.

Leak Detection System 

The Leak Detection System is a subset of the Tank Monitoring System containing only the leak detection functions.  This completely separate design has Flash, a graphic display, fax modem, and small keypad. Much of the software was shared between the two projects.

MC-580 Data Acquisition Isokinetic System 

The MC-580 Data Acquisition Isokinetic System is a portable device for testing industrial stack emissions to verify EPA compliance.  The device uses pressure transducers, thermocouples, and flow meters to collect physical data in order to perform extensive analysis.  Collected data is stored into Flash memory for subsequent download into a PC.  The product contains a 240x128 pixel LCD display and utilized a Philips XA microprocessor.  For more information on this product go to Apex Instruments by clicking on the icon below:

Thermistor Leak Sensor

The design of ECC Leak Sensor III Thermistor interface card is based on detecting the dissipation constant of the environment in which the sensor is exposed.  This is done by using two thermistors, one as a reference, the other as a self-heated thermistor.  A compare of the two thermistors enable the interface card to detect when the sensor is in the presence of water or a hydrocarbon.

The first thermistor in the sensor is called the reference thermistor and the second one is called the sense thermistor.  The temperature of the environment surrounding the sensor is determined by reference thermistor.  The dissipation constant is determined by self-heating the sense thermistor and subtracting the reference temperature.  The results will indicate what medium the sensor is being exposed.

home  |  projects  |  services  |   investors  |   news  |  partners  |   about us    |   careers  |  contacts