By Innovative Scientific Solutions Inc.
CAL-04 is a multi-function system designed for controlling the mass-flow of two gases and temperature within a cell. This new evolution of ISSI's pressure and temperature sensitive paint calibration system utilizes a gas flow design whereby the nitrogen to oxygen mass flow ratio is controlled to simulate pressure. The advantage of this technique is the ability to simulate pressures from approximately 0 to 4.0 bar without the noise and complexity of the diaphragm pump. Nitrogen and oxygen from gas bottles flow into the gas inlet fittings on the calibration box via appropriate dual stage regulators (ISSI does NOT supply bottled gas or regulators). The mixed gas exits the calibration control box via the output rear fitting and then into the calibration cell where the gas flows over the sample. The temperature control has been upgraded to provide faster temperature control and improved stability. Operation of the system can be completely manual via the front panel interface for custom calibration purposes or in an automatic mode via software where the customer collects calibration data over a chosen set of conditions in an automated fashion The system sends a TTL level trigger to the camera to acquire an image once it is on condition via a trigger output BNC connection. The camera returns a TTL level pulse to the trigger input BNC connection once it frames, signaling the calibration system that an image has been acquired and to move to the next condition. The calibration cell requires a low steady flow of water for cooling purposes. A quiet, low maintenance water circulator with fan cooling is packaged with the system. Another advantage of the system is the Ethernet interface which simplifies communication with a computer, especially over long distances. The calibration system can be installed in a convenient location and communicated with over an existing network. Firmware updates and support by ISSI personnel are possible from our offices to where the system is installed. The system is set up for universal power so can be powered by 110 VAC, 60 Hz or 220 VAC 50 Hz. The system can also be used to control mass flow ratios of other gases within the cell. The system is capable of handling many other gases. The cell is for gases only, no liquids. Specifications Pressure Range: 0.0-4.0 bar Temperature Range: 0-70˚C Pressure Accuracy: 0.5% of full scale Temperature Accuracy: 0.1 ˚C Interface: 10/100 Mbps Ethernet Power: 100-240 VAC, 50/60 Hz Software: Windows GUI Warranty: 1 year ECCN: EAR99 Component List 1. Calibration Cell (1) 2. RTD cable for temperature control (1) 3. Ethernet patch cable (1) 4. BNC cable for camera trigger (2) 5. BNC Barrel connectors for camera to cable (2) 6. ¼” tubing for supply and output to cell with gas fittings (3) 7. Thermal compound (1) 8. Power Cable (2) 9. PT Control software for control of system (1) 10. OMS Calibrate software license (1) 11. Koolance cooling unit (1) 12. Power supply and adapter for Koolance cooling unit (1) 13. Fittings and hose for cooling water (2) 14. Coupons for paint calibration (5) 15. Mounting screws for cell to mount (3) 16. Cell Mount (1) 17. Calibration Control Box (1)
The educational PSP/TSP system provides everything needed for new users to get started using PSP and TSP. This system provides high spatial resolution, excellent dynamic range, but lower data capture rates than our higher-end systems. For applications where time in the wind tunnel is not a critical issue, it represents an excellent cost/performance trade-off. This system provides full capability for undergraduate demonstrations, training, and laboratory exercises. It will support all but the most demanding graduate and faculty research programs requiring distributed pressure and temperature measurements in wind tunnel environments. The system employs proven ISSI LED technology for excitation of the luminous probes in the paints. The camera is based on a color CCD sensor, eliminating the need for a filter wheel when using bi-luminophore paints. The OMS-Lite software package is easy to use and fully supports the educational and research capabilities of the PSP/TSP system. Standard System Components: - Color CCD Camera: 12 bit, 1.9 Megapixel color CCD camera with Gigabit Ethernet connectivity - LM2X-DM-400 LED Array: High-power UV LED module with TTL control - PSG-3: Pulse/delay generator for instrument control and synchronization - Parbolic Reflector and Diffuser: Focuses output of LM2 series LEDs from 120- to 40-degrees giving 2-3 times increased focused output. - PSP/TSP Starter Kit: PSP starter kit including beginner paints in spray cans, Binary FIB and FIB Basecoat with HVLP paint gun and airbrush with compressor and fittings. - Optical Kit: This kit contains all lenses and filters needed to get started using PSP and TSP. Available with c-mount or Canon® EF mount lenses. - ProAcquire and OMS-Lite: Data acquisition and data reduction software. Test models used in the lab experiments are provided with the the educational PSP/TSP system. An aluminum delta wing and NACA 0012 airfoil model are included with the system along with the mounting hardware to install them for either 1/4″-20 or M6. Other models are available to purchase upon request as well as pressure tapped models. The PSP system package has several options for purchase. Depending on the size of the facility the system will be used in, some different optical kits may be appropriate. Additional LEDs and cameras can also be added to systems and seamlessly integrated. Building a system with the appropriate hardware for your facility is paramount to the success of the results.
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Temperature Sensitive Paint is an optical sensor for temperature measurements. A paint-like coating is applied to a surface and the fluorescence of the paint is monitored with a camera. The paint fluorescence is a function of the local temperature, and therefore, each pixel on the camera acts as a thermocouple.
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Binary paint is composed of two probes, a pressure sensor and a reference probe. The reference probe is used to compensate for errors caused by model displacement/deformation. It can also be used to compensate for temperature.
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The PSG-3 is a four channel digital pulse/delay generator used for controlling the timing of experiment parameters and can be used as an experiment master clock or externally triggered (or gated) by an external event. The PSG-3 replaces the PSG-2 in the ISSI product line. Pulse width, delay, repetition rate, and other timing parameters are controlled by a simple user interface (or also by any web browser interface) and communication is via Ethernet or USB. Features - Two dual-channel independently programmable pulse generators (each PSG-3 has 4 total channels). The PSG-3 can produce two separate frequency outputs either synchronously or asynchronously. - Four high-current TTL level outputs extend the utility of this generator by allowing it to drive low impedance loads (50 Ohms) such as solenoids and drive logic over long cable runs - Browser accessible HTTP-interface (internal web-server) - Remotely programmable through Ethernet or USB via simple software interface (or HTTP-based API) - Multiple timing bases (ns, us, ms) - Multiple PSG-3s can be cascaded to increase the number of channels - BNC inhibit input (TTL high level) to allow the PSG-3 to be gated by an external source - User application controlled or external signal triggering - Firmware upgradeability through USB - 50 MHz maximum trigger rate (20ns delay resolution) - Divide-by-N from 1-255 - Input Trigger Threshold 0.05-5.0V - Simple LabVIEW® integration Ideal for laser timing systems, automated testing, and precision pulse applications.
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