Systems and methods for making temperature and pressure measurements utilizing a tunable laser diode

摘要

A system (100) for measuring a dynamic pressure in a gas using a tunable diode laser (120). The system (100) of this aspect includes a laser transmission system (102) that includes the tunable diode laser (120) and configured to transmit laser light created by the tunable diode laser (120) through the gas and a laser receiving system (104) configured to receive the laser light after it has passed through the gas to create absorption peaks from the received laser light. The laser receiving system (104) is configured to estimate a change in pressure based on an expansion of one of the absorption peaks.