Exquadrum’s technical laboratory is a 10,000 square foot facility located on 1.3 acres of land in Adelanto, California. This facility contains work areas capable of supporting engineering research and development. The facility is fully permitted to perform engineering research and development and is in compliance with all environmental laws. This facility is equipped with a 2-ton crane and eight large, roll-up doors to support the processing of full-scale hardware.
Exquadrum has heavily invested in high precision turning, milling and plunging machines to accomplish the demanding needs of aerospace grade prototype fabrication. These capabilities include a Mazak Nexus 200 QTN CNC lathe, Hass Tool Room CNC vertical milling center, Lagun CNC mill, Apatron EDM 300 CNC vertical plunger, Bridgeport (4 axis) manual milling machine, 10” manual lathe, and the required support tools and machines required to prototype and fabricate components in the quick schedules inherent in research and development programs.
Exquadrum has high quality computer workstations available to accomplish virtually any task. The company also has two high-end server computers, which provide the necessary server support. The laboratory is equipped with a very high-performance, 3 million bits per second (Mbps) Internet connection. The laboratory also has two sets of the Microsoft Windows software development environment.
Computer Aided Drafting and design is handled using the SolidWorks platform. Three dimensional solid models generated in SolidWorks are transferred to STARS, a nonlinear multidisciplinary FEA and CFD code, to model statics, dynamics, vibrations, heat transfer, CFD internal and external flow and other capabilities. In addition, Exquadrum has invested in MatLAB with Simulink for modeling, simulating and analyzing dynamic control systems. Finally, Exquadrum has in the in-house capability to write custom software as required.
A multi-use, PC-Based data acquisition system (DAS) provides a completely customizable DAS. A programmable graphical user interface (GUI) is used to control the DAS hardware, display pre-and post-processed data (including near real-time Fast Fourier Transfers [FFT]) and record the data. The DAS contains two high-speed, PCI, DAQ boards providing a wide range of capabilities from high sampling rates to high resolution. All boards operate simultaneously under the control of the user-written GUI. The boards have the following specifications: 12-bit, 1 MS/s, 16 analog inputs, 2 analog outputs, 8 digital input/outputs; and, 16-bit, 20 KS/s, 16 analog inputs, 2 analog outputs, 8 digital input/outputs. The entire DAQ system is enclosed in a cabinet with casters to allow quick reconfiguration and multiple program support.
The test area also contains an electronics bench used for dimensional inspection of parts and assembly for prototype electronics. Exquadrum has instrumentation to monitor pressure, temperature, mass volume flow rates, velocity, light energy, and distances over an extreme range of temperatures and pressures (-400 deg. F to 1500 deg. F and 0 to 1,000 psig).
Exquadrum has access to both the El Mirage and the Lucerne Dry Lake Beds for use in the testing of rocket motor systems. These areas, under the supervision of the US Bureau of Land Management (BLM), provide tremendous amounts of safe open space, which is available for conducting test programs. Even when the size or scope of the test in question would not make it a requirement, Exquadrum seeks a permit from BLM before conducting testing as a professional courtesy, and to keep the Bureau informed of our plans and intentions.
Exquadrum has constructed a Mobile Test Platform. This platform serves as a test stand with the capability of performing a variety of research and development activities. Its removable thrust takeout structure is capable of handling 500 pounds of thrust with a uniaxial load cell. In addition, multiple high-pressure liquid and gaseous bottles can be interchanged to service different research programs. This platform is supported by a Mobile Operations Center, which provides remote control of the Mobile Test Platform at distances up to 500 feet. The mobility of both of these assets allows for quick turnaround in the investigation of research activities, and for an efficient, low overhead test capability.