Combined type digital pressure calibration instrument

• Main Authors: LUO HUAN, LIU MAOCHEN, CAO LIGANG, LI WEI, LI JING, ZHANG AIGUO
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2008
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

Combined digital pressure prover is made up of hardware and software. The hardware includes the controller, self-controlled pressure leaking protecting solenoid valve. The software is made up of the self-checking subprogram, checking subprogram, the data processing subprogram and display subprogram; the controller includes the main processor unit, the A/D switching unit, the display and alarm unit, multipath simulating unit and power supplying unit; the output signal of pressure module is transformed to the multipath simulating unit U6 through the current input interface P2, the output of slug U6 is transformed to the A/D switching slug U2, then to the SCM slug U1 to process and display and the U1 can control the pressure exceeding-leaking protecting solenoid valve to start and close. The invention has the scientific designation, high verifying precision, wide range, safe process, compact whole structure, complete function, simple operation, stable character and high practicability. The invention is proper fo