Aeroprobe

Aeroprobe Corporation entwirft, erzeugt und vermarktet wissenschaftliche Instrumente, die in der aerodynamischen und hydrodynamischen Forschung verwendet werden. Aeroprobe bietet von einfachen Sonden bis hin zum komplette Strömungsmesssystem in hohen Traversierung, Kalibration, Software, Datenreduktion und angepasste Systeme für jede Anwendung. Spezielle FRP (Fast-Response Probes) dienen um hohe Frequenzen in hohen Turbulenzen zu analysieren. Die Sonden sind robust und einfach zu handhaben und gestatten einen Einsatz vom Labor bis hin zu industriellen Praxiswerten. Application Information

Probes

 

	Conventional Multi-hole Probes A conventional probe is comprised of a single cylindrical body with fiveor seven holes at its tip. The holes are connected internally, to pressure-sensing equipment. When the probe is placed in the flow, the pressures recorded from each port can be interpreted by our software to determine both the velocity magnitude and direction with respect to the probe. These conventional probes can be manufactured in a large variety of custom geometries and sizes as small as 1.0 mm in tip diameter. The maximum incidence angle of these probes is about 60° for a five-hole probe, and 70° for a seven-hole probe. The probes are capable of withstanding temperatures of up to 150 °C (for higher-temperature applications see below), and can return a frequency response of up to 100 Hz. For applications requiring a higher frequency-response, special probes are available as discussed below. Typical probe geometries are straight, L-shaped, and Cobra-shaped. The tips can be made conical, faceted or hemispherical.
	Air-Data Probes Data reduction with an air-data probe requires no specialized software and is simple enough to be performed in real-time by an on-board computer or telemetry system. Unlike our conventional probes, the air-data probes are limited to incidence angles of about 20°, but feature a ring of static ports that eliminate the need for a separate Pitot-static tube. They are more accurate than conventional probes and provide a similar frequency response. They can be heated internally for use on a high-altitude Unmanned Aerial Vehicles (UAV).
	Fast-Response Probes Unlike our conventional probes, these probes have pressure-sensors embedded in the body of the instrument to eliminate the attenuation of the high-frequency part of the signal, common to all external sensor probes. In addition, the probe is acoustically calibrated to correct even for the miniscule attenuation caused by the short internal tubing. These probes have a frequency response of 3.0 kHz or greater. They retain the <0.8% velocity measuring accuracy of the standard probes as well as the maximum incidence angle of 70° for seven-hole probes.
	High-Temperature Probes To suit the needs and budgets of different customers, we offer three different types of these probes. The most cost-effective model we offer is a steel probe which can withstand up to 600°C. We also offer a probe constructed of a nickel-based superalloy, which is capable of sustaining up to 900°C, and a platinum coated ceramic probe capable of operating in environments up to 1,250°C. None of these probes require cooling of any sort. Our high-temperature probes can be manufactured in the same geometries and sizes as our standard probes.
	Omniprobes Unlike conventional probe designs with five or seven pressure ports on a conical tip, the Omniprobe is equipped with twelve ports on a spherical tip, allowing it a much greater incidence angle than our other probes. Though the probe shaft interferes with the readings, preventing it from being perfectly omni-directional, the Omniprobe is able to accurately measure flow in a 160° cone emanating from the tip. In short, the only time when the Omniprobe will not get accurate readings is if the flow is coming from the base of the probe and moving along the shaft.