Multi-range field full-automatic pressure and electric signal calibration instrument
US9395261B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2011 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Aug 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/208
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multi-range on-site full-automatic pressure and electric signal calibration instrument includes a housing, a power switch, a plurality of interfaces, a display, a keyboard, a gas pressure generation unit, a power supply unit, a pressure detection unit, a gas pressure control unit and an electric signal detection unit. A pressure output port of the pressure control unit is in parallel connection with pressure connectors used for installation of a plurality of pressure standard devices with different ranges and a calibrated gauge. The pressure control unit is in signal connection with the pressure standard device. The electric signal detection unit is in signal connection with the pressure control unit and the calibrated gauge; and the power supply unit can supply power by batteries. The calibration instrument does not need to be externally connected with a gas cylinder or an alternating current power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.