XTALX LUQS1 Quartz Pressure Sensor

Our dead volume is only 74 uL. Microfluidic chips often have volumes of only a few microlitres in total.  If pressure sensors interfaced with the chips have volumes thousands of times higher, it becomes challenging to monitor processes in the channels accurately.  Purging or filling large dead volumes can take hours through a tiny channel.  Our dead volume is over 10 times less than typical NPT style sensors.

Resonant pressure sensors provide the highest resolution available.  It is now possible to observe 0.1psi pressure changes at 10,000psi with high clarity. For this test, a RUSKA 7215i pressure controller with a maximum pressure range of 15psi was used.  This tool has 0.005% of reading precision and can create accurate small pressure changes.  The Omega (PX51-USBH 5,000psi full scale) and DJ Instruments (DFI-SS-01-7.5k-5V 7,500psi full scale) sensors did not respond to the small changes but The XtalX LUQS1 showed these changes clearly even with a full-scale range of 10,000psi.