Track control device applied to pneumatic hot air tunnel test state

Abstract

The invention discloses a track control device applied to a pneumatic hot air tunnel test state, and relates to the field of track control devices. The device comprises a direct current power supply,a control input terminal, a first switch breaker group, a relay group, a shielding casing and a second switch breaker group; the shielding casing is of a hollow shell structure; the direct current power source, a control input device, a signal output and a relay group are all disposed inside the shielding casing; one end of the control input terminal is communicated with an external host computer;the other end of the control input terminal is communicated with one end of the first switch breaker group; the other end of the first switch breaker group is in communication with the relay group; the relay group is respectively communicated to the ends of the first switch breaker group, the direct current power source and the second switch breaker group; the other end of the second switch breaker group is communicated with an external pneumatic solenoid valve; the device achieves the multi-gas path control, completes the test task of multiple track simulation, effectively isolates the interference of strong electricity and clutter signals, and forms effective shielding and isolation between test equipment and a control module.

Description

technical field [0001] The invention relates to the field of a track control device, in particular to a track control device applied in aerodynamic hot wind tunnel test state. Background technique [0002] With the gradual expansion of the aerospace field, the aerothermal ground simulation test is becoming more and more complex. The previous single-state test capability can no longer meet the requirements of various flight conditions, and then the multi-orbit simulation test came into being. The main test method of the aerodynamic thermal test is to use the plasma heater to realize the simulation of different high-altitude and high-speed flight states by adjusting the electric power and air flow. Its main track change is determined by the flow and pressure of the gas path. [0003] In the prior art, a single host computer is used to directly control the action of the solenoid valve; this control method has many problems. For example, because the general host computer mostl...

AI Technical Summary

Problems solved by technology

For example, because the general upper computer mostly uses engineering computer modules or data acquisition control boards, there are low power and weak anti-interference ability.

In the process of aerodynamic thermal wind tunnel test, there are strong electrical interference and static fluctuations, which can easily cause electronic failure or direct damage to general electronic equipment

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