Abstract
In recent engine development, precise and quick response pressure sensors are necessary for estimation of IMEP or ROHR. Usually, piezo-electronic type pressure sensors are applied because of the small size, quick response and heat endurance for cylinder pressure indicator. However, the sensors have some difficulty regarding to the static and accurate calibration. The new dynamic calibration system has been developed for the piezo type pressure sensors. The system has a pulse pressure generator having a wide range of frequency and precise pressure altitude. The test results are satisfactory as shown in this paper.
