Heat Transfer in Aerospace Applications

Chapter 11

Measuring Techniques

Abstract

This chapter concerns various measuring techniques for properties such as temperature, flow rate, and mass gauging in aerospace applications. Some of these are briefly discussed, whereas mass gauging in microgravity environment is presented in more detail.

Keywords

Flow; Fill level; Mass gauging; Measurement techniques; Measurement error; Temperature

11.1. Introduction

Many physical properties in spacecraft are of vital concern, e.g., temperature, pressure, flow rate, and propellant mass gauging. The information of these parameters will form the important basis for the temperature and pressure control of the whole spacecraft, especially the payload and propulsion subsystem. Some of the parameter measurements ...