THE APPARATUS FOR CALIBRATION OF THE DIFFERENTIAL PRESSURE GAUGE AND APPARATUS FOR CALIBRATION OF THE PRESSURE GAUGE

摘要

PURPOSE: A differential pressure gauge correction device and a pressure gauge correction device are provided to improve accuracy, enable rapid correction and diagnosis, and measure the pressure difference. CONSTITUTION: A differential pressure gauge correction device comprises a first container(110), a second container(120), a volume modulator(140), and a differential pressure gauge(138). The second container is separated from the first container. The volume modulator is placed on one side of the first container. The differential pressure gauge is connected to the first container and the second container. The volume modulator varies the volume of the first container. The volume modulator corrects the measurement signal of the differential pressure gauge.