US 12,332,226 B2
Real-time measuring device of oxygen concentration in droplet environment
Lili Tong, Shanghai (CN); Zhichao Gao, Shanghai (CN); and Xuewu Cao, Shanghai (CN)
Assigned to SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed by SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed on Mar. 10, 2023, as Appl. No. 18/182,253.
Application 18/182,253 is a continuation of application No. PCT/CN2022/105191, filed on Aug. 24, 2022.
Prior Publication US 2023/0204532 A1, Jun. 29, 2023
Int. Cl. G01N 33/00 (2006.01); G01N 27/04 (2006.01); G01N 27/12 (2006.01); G01N 27/406 (2006.01); G01N 27/407 (2006.01); G01N 27/409 (2006.01); G01N 27/41 (2006.01); G01N 27/419 (2006.01)
CPC G01N 33/0011 (2013.01) [G01N 27/041 (2013.01); G01N 27/12 (2013.01); G01N 27/406 (2013.01); G01N 27/4073 (2013.01); G01N 27/409 (2013.01); G01N 27/41 (2013.01); G01N 27/419 (2013.01); G01N 33/0016 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A real-time measuring device of oxygen concentration in a droplet environment, comprising:
a measurement pipeline,
a gas-liquid separation structure installed inside a side of a gas inlet of the measurement pipeline,
a pressure sensor, a zirconia oxygen concentration sensor with a built-in thermal resistor, a digital signal converter, a signal amplifier and a signal processing unit sequentially installed at the gas outlet of the measurement pipeline, wherein
the pressure sensor, the thermal resistor and the zirconia oxygen concentration sensor are connected to the digital signal converter and the signal amplifier, respectively, and the signal processing unit obtains the amplified and AD converted zirconia oxygen concentration sensing signal, pressure sensing signal and a temperature sensing signal and calculates real-time oxygen concentration;
wherein the zirconia oxygen concentration sensor comprises a zirconia inner tube, a zirconia heater arranged outside and inside the zirconia inner tube and a zirconia intra-tube thermal resistor, a reference gas is arranged in the zirconia inner tube, and the zirconia intra-tube thermal resistor is used for measuring the temperature of the reference gas.