Our People


Darrin Jack

Research Technician

Mass and Pressure

Areas of expertise

• Pressure measurements and calibrations covering high-accuracy gas and oil deadweight testers
• Pressure balances
• Barometers
• Manometers and transducers
• Instructor of pressure calibrations


• NZCE Electronics & Computer Technology


Darrin has been in metrology for over 30 years and has become a specialist in the measurement of pressure. He has a strong working knowledge of a wide variety of methods of determining pressure, including calibration of high-accuracy barometers, gas and oil deadweight testers, as well as manometers and transducers. He has developed and presented training workshops on pressure calibrations.
Darrin helped design and build the DHi twin pressure balance system that is used as the primary pressure standard for New Zealand. This is used to realise, maintain and disseminate the Pascal.


• Sutton, C.M.*; Jack, D.G.*. “Towards the ultimate short-term repeatability of gas-operated pressure balances”,6th APMP Pressure and Vacuum Workshop, Wellington, New Zealand 23 November 2012.
• Sutton, C.M.*; Fitzgerald, M.P.*; Jack, D.G.*. 2012. An initial investigation of the damped resonant behaviour of gas-operated pressure balances. Measurement. Vol.45, no.10, p.2476-2478.
• Fitzgerald, M.P.*; Sutton, C.M.*; Jack, D.G.*. 2011. New MSL twin pressure balance facility. PTB - Mitteilungen Forschen und Prufen. Vol.121 no.3 p.263-265.
• Sutton, C.M.*; Fitzgerald, M.P.*; Jack, D.G.*. 2010. The concept of a pressure balance based watt balance. CPEM Digest (Conference on Precision Electromagnetic Measurements). p.131-132.
• Kobata, T.; Kajikawa, H.; Kimura, A.; Fitzgerald, M.P.*; Jack, D.G.; Sutton, C.M. 2009. Final report on key comparison APMP.M.P-K7.1 in hydraulic gauge pressure from 10 MPa to 100 MPa. Metrologia. Vol.46, p.07008 (69 p.).
• Fitzgerald, M.P.*; Jack, D.G.*. 2008. Technical guide: Measuring atmospheric pressure with a barometer. 3 p.. IRL. Lower Hutt.
• Fitzgerald, M.P.*; Jack, D.G.*. 2008. Controlled clearance measurements on the MSL 280 MPa pressure balance. Asia Pacific Metrology Programme. Pressure and Vacuum Workshop (4th : 2008). Conference presentation.
• Fitzgerald, M.P.*; Sutton, C.M.*; Jack, D.G.*. 2007. Technical guide: Care and use of a deadweight tester. 4 p.. IRL. Lower HUtt.
• Fitzgerald, M.P.*; Jack, D.G.*; Clarkson, M.T.*. 2006. Technical guide: Pressure gauge calibration. 13. 5 p.. Industrial Research Limited. Lower Hutt.
• Kobata, T.; Kojima, M.; Saitou, K.; Fitzgerald, M.P.*; Jack, D.G.*; Sutton, C.M.*. 2006. Key Comparison APMP.M.P-K5 in differential pressure from 1 Pa to 5000 Pa. International Conference on Advances in Metrology (6th : 2006 : New Delhi). Conference presentation.