US 12,031,973 B1
System method for determination of humidity of concrete
Johan Sjöland, Bunkeflostrand (SE); and Anders Hörberg, Lund (SE)
Assigned to Zenzr Sverige AB, Lund (SE)
Appl. No. 18/563,949
Filed by Zenzr Sverige AB, Lund (SE)
PCT Filed May 25, 2022, PCT No. PCT/SE2022/050510
§ 371(c)(1), (2) Date Nov. 24, 2023,
PCT Pub. No. WO2022/250601, PCT Pub. Date Dec. 1, 2022.
Claims priority of application No. 2150686-0 (SE), filed on May 28, 2021.
Int. Cl. G01N 33/38 (2006.01); G08C 17/02 (2006.01)
CPC G01N 33/383 (2013.01) [G08C 17/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for determination of humidity of concrete, the system comprises:
a gauge configured to be embedded into the concrete wherein the gauge comprises:
an oxygen sensor, and
an ammonia absorption system, wherein the ammonia absorption system is configured to absorb ammonia from the gas at the gauge for enhancing the accuracy of the gauge when obtaining measurement data;
a first wireless communication module configured for wide area radio communication; and
a processing circuitry operatively connected to the a gauge and the wireless communication module, configured to cause the system-to:
obtain first measurement data by the gauge;
determine the relative oxygen saturation at the gauge;
determine the humidity at the gauge based on the determined relative oxygen saturation at the gauge; and
transfer data wirelessly by the wireless communication module to a remote location.