Development of remote calibration system for pressure standard

A remote calibration technology for disseminating pressure standard has been developed. In the remote calibration, a transfer standard is transported from a calibration laboratory to a client’s site where a calibration item is used. Using the transfer standard and the internet, the calibration item is calibrated on site. For the remote calibration, integrated transfer standards were newly developed in different pressure ranges. Each transfer standard includes a pressure controller, two or three precise pressure transducers, environmental measurement devices and an inclinometer in one box. Also the calibration protocol was examined to perform the remote calibration efficiently using the transfer standard. In order to prove the effectiveness of the remote calibration, the demonstration experiments were performed domestically and internationally. Here, the calibration protocol for the remote calibration and the functional overview of the newly developed transfer standards are described. The experimental results are also shown.

► A remote calibration technology for disseminating pressure standard.
► Integrated transfer standards were newly developed.
► Calibration protocol for the remote calibration was made.
► Demonstration experiments were performed domestically and internationally.
► Results of the remote calibration are sufficiently reproducible.