Landgate

Logon to > MyLandgate

Digital Levelling System (Bar Coded Staves)


A barcode staff calibration range has been established on the Land Surveyors Licensing Board's examination site at Boya and consists of 2 observing pillars and a series of 21 stainless steel pins set in a solid granite outcrop. The pins have been placed at optimum distances from the pillars and cater for testing over a 4 metre height difference. The relative height differences between the pins have been accurately determined by repeat observations using precision levels in conjunction with calibrated invar staves.


See a diagram of the pin configuration.
The Landgate will regularly monitor and remeasure the test range to ensure its ongoing accuracy and stability.

Booking and Procedures for Barcoded Staff Calibrations


To read PDF files, you need Acrobat Reader.
Western Australian Land Information Authority