Calibration tool and calibration method for pressure sensor and flow sensor

The invention provides a calibration tool and a calibration method for a pressure sensor and a flow sensor, the calibration tool for the pressure sensor and the flow sensor comprises a calibration pipeline, a pressure measurement pipeline, a flow measurement pipeline, a hand pump and a reversing valve, one end of the calibration pipeline is connected with an oil tank; the pressure measuring pipeline is connected with the calibration pipeline and is used for calibrating the pressure sensor; the flow measuring pipeline is connected with the calibration pipeline and used for calibrating the flow sensor, and a flow meter is further arranged on the flow measuring pipeline; the hand pump is connected with the calibration pipeline and used for changing the flow and pressure of oil in the calibration pipeline. The reversing valve is arranged on the calibration pipeline, and the flow measuring pipeline is connected with the calibration pipeline through the reversing valve. The calibration tool for ...