US 12,222,368 B2
Liquid analysis device and sensor unit
Manabu Shibata, Kyoto (JP); Yuichiro Komatsu, Kyoto (JP); and Hiroki Minowa, Kyoto (JP)
Assigned to HORIBA ADVANCED TECHNO, CO., LTD., Kyoto (JP)
Appl. No. 17/595,431
Filed by HORIBA Advanced Techno, Co., Ltd., Kyoto (JP)
PCT Filed May 15, 2020, PCT No. PCT/JP2020/019537
§ 371(c)(1), (2) Date Nov. 16, 2021,
PCT Pub. No. WO2020/250622, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 2019-108265 (JP), filed on Jun. 10, 2019.
Prior Publication US 2022/0196703 A1, Jun. 23, 2022
Int. Cl. G01N 33/18 (2006.01); G01R 1/067 (2006.01); H03M 1/12 (2006.01)
CPC G01R 1/067 (2013.01) [G01N 33/18 (2013.01); H03M 1/12 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A liquid analysis device comprising:
a plurality of sensor portions each configured to contact a liquid and output an analog signal corresponding to a predetermined measurement target item;
a plurality of conversion portions each configured to convert the analog signal obtained by a respective one of the sensor portions into a digital signal;
a device body to which each conversion portion is connected by a wire or wirelessly, the device body being configured to acquire each digital signal from the respective conversion portion; and
a plurality of coupling mechanisms that couple and fix the conversion portions to each other by bringing a plurality of side surfaces of the conversion portions into contact with each other, wherein
the sensor portions and the conversion portions are attachable to and detachable from each other,
each sensor portion includes a connection plug that electrically connects to the respective conversion portion, and
a metal shield is provided at a connection portion between the connection plug and a wire of at least one of the sensor portions.