Automatic Test:

Test Systems of varied size and complexity are a apecialty of EJC Sysems. From concept through development, fabrication and customer intergration, EJC System team brings experience and expertise to ensure every customer receives exactly what was requested.

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Power Supply Test Station Optimized for high production use, this test station performs extensive testing on a Mil Spec power supply with minimal operator interaction. Quickly performs hundreds of test measurements from bonding resistances and dynamic loading to turn-on timing all with complete report generation. Specially designed "quick connect" holding fixture, bar-code scanner and and large touch-screen interface enhance the system performance.  




Automated Test Station:
Designed to support concurrent testing of five test articles. Operates and monitors solenoid valves, flow and pressure instrumentation, AC and DC power supplies, and precision electrical instrumentation interfaces. Controls Gas Chromograph and Particle Counter instruments to perform fully automated testing.




Actuator Tester:
Performs acceptance testing of Servo Actuators. The machine consists of an industrial, rack-mounted PC, computer controlled data acquisition, programmable power supplies, instrumentation, signal conditioners and isolators. Custom software was developed to support these interfaces and to automatically perform testing.




Interface Test Adapters:
Units designed to test circuit card assemblies by adapting general purpose test station resources to UUT interfaces.





Test Station Control Software:
Test station and custom LabView software developed to exercise eight UUTs during Environmental Stress Screening (ESS).

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EJC Systems has been supporting Honeywell International and Northrop Grumman with automatic test stations for B-2 Stealth Bomber avionics equipment. The
CIDS-STE (Central Instrument Display System - Special Test Equipment) plays an important role for the program in performing unit burn-in testing, acceptance testing and support of various qualifications tests.

Key characteristics and interfaces of this test system include:


- Automatic Test System
- Honeywell - Click for larger
- Multiple 1553 Mux busses
- Multiple 100Base-T ethernet interfaces
- Multiple RS-232 and RS-422 interfaces
- Analog inputs & outputs
- Discrete inputs & outputs
- Precision thermocouple simulation
- Programmable AC & DC power supplies
- Full system self-test
- Software based calibration

The highly modular test system software has been developed in LabView. A menu-driven user interface provides access to all of the system testing functions. Selection of test script files offers flexible testing capabilities. In addition to fully automated testing, a full compliment of manual functions are provided for use during development and troubleshooting. Test results are recorded in disk files and may be printed as fully formatted MS Word documents.

 




This PC based test station was programmed using LabView, and performs extensive test and measurement functions. Capable of signal conditioning and data acquisition for test item voltages, currents, waveshapes, pressures, temperatures, and flow. Controls thermal chamber to automate thermal cycling, burn-in, and acceptance tests. Test system is used in testing electronics modules and valves used on the International Space Station (ISS).
 




Manufacturing Test Station:
Panel PC based test stand performs final assembly tests on industrial paint sprayers using custom developed LabView software.
 




A fully automated
Burn-In system capable of monitoring and testing electronics modules that are used in satellite equipment.