GAGE HEAD Russian patent published in 2008 - IPC G01B7/02 

FIELD: measurement technique.

SUBSTANCE: gage head comprises 1) the housing in which the pneumatic valve is positioned; the said valve separates the housing central hole into two chambers located above and under the valve - valve pot and subvalvular chamber; 2) the backed double-arm lever connected with the valve and 3) displacement transducer based on the aerostatic bearing with a limit stop designed as pneumatic cylinder interworking with throttle ejector gaging nozzle. The latter consists of feeding, delivery and outlet channels where feeding channel is connected with ejector and valve pot, outlet channels is connected with pneumatic throttle and subvalvular chamber is connected with air.

EFFECT: increasing of measurements reliability, namely exclusion of signal-shape distortion.

1 dwg