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Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm

A technology of fixing particles and fixing devices, which is applied in measuring devices, measuring fluid pressure, measuring fluid pressure through electromagnetic components, etc., can solve the problem of error rationality without effective experimental verification, and achieve the effect of facilitating experimental work

Inactive Publication Date: 2012-08-01
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a lot of research has been done at home and abroad, the simplified single-ball drag coefficient model is basically used, and the rationality of the error caused by the simplification has not been effectively verified by experiments. In addition, there are various deficiencies

Method used

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  • Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm
  • Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm
  • Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawings and examples.

[0023] Such as figure 1 , figure 2 As shown, the present invention includes two parts: a base and a cage-shaped support, wherein the base includes: an upper cover plate 1 of the base, a base plate 2 and a lower cover plate 3 of the base, wherein the base plate 2 and the lower cover plate 3 of the base structured as Figure 5 , Figure 6 Shown; Cage-shaped bracket comprises: cage-shaped bracket top cover 4, cage-shaped bracket bottom cover 5, connecting rod 6 and sensor threaded connection ring 8 (its structure is as follows Figure 7 shown), wherein the connecting rod 6 is fully threaded; the two sides of the four base plates 2 are respectively provided with threaded holes, and the upper cover plate 1 of the base and the lower cover plate 3 of the base are also respectively provided with threaded holes. These three components are connected into a whole wi...

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Abstract

The invention discloses a sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix a particle swarm. The sensor fixing device comprises a base and a cage-shaped bracket; the base is formed by joining a base upper cover plate and a base lower cover plate into a whole through a base liner plate; the cage-shaped bracket comprises a top cover, a bottom cover, four connecting rods and a sensor threaded connection ring; and after the equidistantly distributed four connecting rods run through the fixed base upper cover plate, the top cover is fixedly and integrally connected with the bottom cover which is arranged below the base upper cover plate, one end of a pressure sensor passes through a central hole of the fixed base upper cover plate to lead to the bottom cover, then the pressure sensor is locked on the lower end surface of the base upper cover plate through the sensor threaded connection ring, oil is filled in a space formed between one end of the pressure sensor and an inner hole of the bottom cover, and the pressure sensor is connected with a high-speed data collecting system. Due to the adoption of the sensor fixing device, unsteady force suffered by different spherical array models from the action of the shock waves can be conveniently measured, and the fixation of the pressure sensor can be realized in an experiment by utilizing shock waves to load and fix the particle swarm.

Description

technical field [0001] The invention relates to an experimental device for measuring force, in particular to a sensor fixing device for measuring the unsteady force of a fixed particle group loaded by a shock wave. Background technique [0002] The phenomenon of gas-solid two-phase flow in the supersonic gas-phase flow field has important applications in many fields such as medical treatment, fluid machinery, environmental protection, and aerospace, such as needle-free injection of powder drugs, erosion of solid particles in gas turbine cascades, Supersonic cold spraying in thermal processing, powder fire extinguishing, supersonic separation of dusty gas, surface impact erosion simulation of re-entry aircraft, etc. The shock tube is one of the generating devices of the supersonic gas-phase flow field. The flow form inside the channel is an unsteady gas-solid two-phase flow field with moving shock waves, which involves the interaction between gas and solid phases and solid pa...

Claims

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Application Information

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IPC IPC(8): G01L9/00
Inventor 亓洪训张苹章利特施红辉
Owner ZHEJIANG SCI-TECH UNIV
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