PURPOSE: A dynamic pressure generator and an apparatus for correcting a dynamic pressure gauge are provided to properly correct the dynamic pressure gauge by generating stable reference dynamic pressure. CONSTITUTION: A dynamic pressure generator includes a body(100), a valve(4), and a valve detaching device(200). The body is formed with a static pressure inlet(17), a static pressure storing section(1) for storing high pressurized fluid therein, a static pressure outlet(2) for exhausting high pressurized fluid, and a cavity(6) extending from the static pressure outlet(2). The valve(4) opens/closes a connection part(3) formed between the static pressure outlet(2) and the cavity(6). The static pressure inlet(17) is covered with a port(16) so as to stably introduce high pressurized fluid into the dynamic pressure generator. A valve seat(5) is provided in the connection part(3) for resting the valve(4) thereon.
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