Invocon on STS-114

July 26 - August 9, 2005

Space Shuttle Discovery

This was the twentieth flight of Invocon hardware on the Space Shuttle, and it was the largest number of Invocon units in operation during a single flight.

44 EWB MicroTAU™ Wing Leading Edge
9 WB MicroTAU™ Aft Section
12 MicroSGU™ Aft Section
6 MicroTAU™ Payload Bay and Multi-Purpose Logistics Module (MPLM)
2 WIS™ Inside the MPLM for use on the International Space Station (ISS)

Enhanced Wide-Band Micro-Miniature Tri-axial Accelerometer Unit

This is the inaugural flight of the EWB MicroTAU system, a high-speed, synchronized data acquisition network for dynamic acceleration sensing and recording. On STS-114, 44 units were used to detect, locate, and characterize impacts on the RCC panels on the wing leading edge.

Click here for more information about the EWB-MicroTAU system.

Wide-Band Micro-Miniature Tri-axial Accelerometer Unit

This was also the inaugural flight of the WB MicroTAU system, a wireless, high-speed data acquisition network for dynamic acceleration sensing and recording applications. The WB MicroTAU system was designed for NASA to monitor the dynamic behavior between the SSME (Space Shuttle Main Engine) feedlines and the SSME low-pressure turbo-pump that produced the cracks that temporarily grounded the Shuttle fleet in the summer of 2002.

Click here for more information about the WB-MicroTAU system.

Micro-Miniature Strain Gauge Unit

Twelve Invocon MicroSGU™ sensors were installed in the engine compartment to measure the stresses imparted to the trunnion arms on the Space Shuttle Main Engines (SSMEs).

This makes the seventh consecutive flight of the MicroSGU system starting with STS-109.

Click here for more information about the MicroSGU system.

Micro-Miniature Tri-Axial Accelerometer Unit

The MicroTAU system is a network of small, battery powered, wirelessly programmable, synchronous, tri-axial acceleration data recorders.The MicroTAU system was designed to detect vibration of payloads during launch and landing.

This was be the third MicroTAU flight since STS-108 in December 2001.

Click here for more information about the MicroTAU system.

Wireless Instrumentation System

This Shuttle flight delivered two Internal Wireless Instrumentation System (IWIS) Remote Sensing Units (RSUs) and accelerometers. IWIS is deployed by the astronauts inside the partially completed ISS to collect data on the impulse response of the structure. This synchronized data is used to verify the structural integrity of the ISS on orbit. It will also be used to update models predicting the modal response of the ISS.

Click here for more information about the WIS system.