Towards a shock tube method for the dynamic calibration of pressure sensors

Towards a shock tube method for the dynamic calibration of pressure sensors.

In theory, shock tubes provide a pressure change with a very fast rise time and calculable amplitude. This pressure step could provide the basis for the calibration of pressure transducers used in highly dynamic applications. However, conventional metal shock tubes can be expensive, unwieldy and difficult to modify. We describe the development of a 1.4 MPa (maximum pressure) shock tube made fro...

Shock-Tube Calibration of a Fast-Response Pressure Transducer

Dynamic calibration of pressure sensors - French metrology special feature

Pressure measurement in non-equilibrium conditions is required in many applications. For example, pressure must be monitored in the cylinders of an engine to study combustion phenomena, in an injection moulding press to study a moulding process, in a Pitot tube to determine the speed of an aircraft, or in a catheter to determine blood pressure. In applications like these the pressure quantity i...

Mathematical modelling to support traceable dynamic calibration of pressure sensors

This paper focuses on the mathematical modelling required to support the development of new primary standard systems for traceable calibration of dynamic pressure sensors. We address two fundamentally different approaches to realising primary standards, specifically the shock tube method and the drop-weight method. Focusing on the shock tube method, the paper presents first results of system id...

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...