Korry is a manufacturer of control panels for the Boeing 787 aircraft.
Traditional control panels consist of switches and indicators, each with its own set of wires that interface to one or more connectors. The 787 control panels reduce wiring by incorporating a controller area network (CAN) bus for switch control and indicator status.
The problem
To develop an automated test system that functionally tests flight deck control panels for switch closures, indicator light illumination, and potentiometer settings. To design an interface board that provides a single connector for use with numerous cable harnesses, and develop an easy-to-use user interface for test operators.
The customer
Korry's requirements for a test station included the need to develop a test platform with all instrumentation, switching, and control contained within a compact footprint.
Starting with PXI as the core platform, Korry identified Geotest's GX7400 PXI power supply as meeting its needs for supplying power to the unit under test (UUT). Using the GX7400 dual-channel power supply to supply 28 V d.c, the control panel's switches, potentiometers, and indicators were tested for functionality. Additional test components included relay cards to route power from the DC power supply to the panel, a digital multimeter (DMM) card, and CAN-bus interface cards.
The solution
To support the testing of several different types of control panels, test engineer Allen Cutler designed an interface board that provides a common interface between all test system resources and a 156-pin Ziff connector. With a common tester interface, only a unique cable assembly is required to support each specific type of UUT, resulting in a simple and compact test solution with support for a variety of different control panels. A test program that prompts the user to actuate switches or observe status indicators controls all test functions.
Identifying interference in 5G and LTE networks
Test & Measurement
The latest Field Master software release provides a dual display of the LTE or 5G Frame structure, with automatic placement of gates on the Uplink slots alongside the RF spectrum of the gated time slots.
Read more...High-speed AWG generates up to 20 sine waves Vepac Electronics
Test & Measurement
Spectrum Instrumentation has released a new firmware option for its range of versatile 16-bit Arbitrary Waveform Generators, with sampling rates up to 1,25 GS/s and bandwidths up to 400 MHz.
Read more...Digitisers upgraded with pulse generator option Vepac Electronics
Test & Measurement
Spectrum Instrumentation has added the Digital Pulse Generator option to its ultrafast digitisers (with up to 10 GS/s speed) and arbitrary waveform generators.
Read more...Companies collaborate on EnviroMeter Avnet Silica
Test & Measurement
STMicroelectronics and Mobile Physics have joined forces to create EnviroMeter for accurate air-quality monitoring on smartphones. Time-of-flight optical sensing enables an accurate personal air quality monitor and smoke detector.
Read more...PCB test points Vepac Electronics
Test & Measurement
Maintaining these access points in the final production versions will prove invaluable during the life of the equipment for service, adjustment, and debug, or repair activities.
Read more...RFID reader
Test & Measurement
The EXA81 from Brady turns any smartphone or tablet into a personal radar that can pick up radio signals from all RFID-labelled items.
Read more...Proximity sensor with VCSEL Avnet Abacus
Test & Measurement
Vishay’s newest small package proximity sensor, the VCNL36828P, combines low idle current with an I2C interface and smart dual slave addressing.
Read more...CNH data output devices for AI applications Altron Arrow
Test & Measurement
STMicroelectronics’ CH family of time-of-flight sensor devices feature compact and normalised histogram (CNH) data output for artificial intelligence applications requiring raw data from a high-performance multizone ToF sensor.
printer friendly version