US 12,332,233 B2
Sensor assembly for determining properties of a concrete structure and concrete structure
Ueli Angst, Wuerenlos (CH); and Yurena Segui Femenias, Zurich (CH)
Assigned to ETH ZURICH, Zurich (CH)
Filed by ETH Zurich, Zurich (CH)
Filed on Sep. 16, 2022, as Appl. No. 17/946,860.
Application 17/946,860 is a continuation of application No. PCT/EP2021/056448, filed on Mar. 15, 2021.
Claims priority of application No. 20163527 (EP), filed on Mar. 17, 2020.
Prior Publication US 2023/0015155 A1, Jan. 19, 2023
Int. Cl. G01L 1/16 (2006.01); G01N 17/00 (2006.01); G01N 33/38 (2006.01)
CPC G01N 33/383 (2013.01) [G01L 1/16 (2013.01); G01N 17/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A sensor assembly for determining parameters related to a durability of a concrete structure, the sensor assembly comprising:
a body; and
at least one sensor configured to determine at least one parameter related to the durability of the concrete structure when the sensor assembly is embedded in the concrete structure, the at least one sensor being arranged at least partially within the body,
wherein the body comprises a shell that covers an outer surface of the body,
wherein at least 90% of the shell consists of or comprises a mineral material, the mineral material being a cement paste or a fine mortar,
wherein the sensor assembly or the shell has an ellipsoid shape or a spherical shape,
wherein the sensor assembly or the shell comprises a first extension extending along a first axis, the first extension being 90 mm or less,
wherein the sensor assembly comprises a first sensor configured to determine parameters related to corrosion, corrosion risk or corrosion propagation of the concrete structure into which the sensor assembly is embedded, and
wherein the first sensor is configured to measure an electrochemical transport process.