Sensing sensor, information processing device, sensing method, and non-transitory computer-readable recording medium storing a program using the same

Patent metadata

Field	Value
Publication number	US-10613008-B2
Application number	US-201815861667-A
Country	US
Kind code	B2
Filing date	Jan 3, 2018
Priority date	Jan 11, 2017
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

A sensing sensor includes a main body portion, a piezoelectric resonator, a connecting terminal, and an information storage. The main body portion includes a supply region to which the sample solution is supplied. The piezoelectric resonator is disposed to face the supply region and includes a capturing layer that captures a sensing object. The connecting terminal is configured to attachably/detachably connect a conductive path connected to an electrode of the piezoelectric resonator to a frequency measuring unit. The information storage stores calibration curve information to specify a calibration curve that indicates a relationship between a density of the sensing object and a frequency variation amount of the piezoelectric resonator before and after supplying the sample solution.

First claim

What is claimed is:

1. A sensing sensor for detecting a density of a sensing object in a sample solution as a frequency variation of a piezoelectric resonator, the sensing sensor comprising:
a main body portion that includes a supply region to which the sample solution is supplied;
the piezoelectric resonator disposed to face the supply region, the piezoelectric resonator including a capturing layer that captures the sensing object;
a connecting terminal configured to attachably/detachably connect a conductive path connected to an electrode of the piezoelectric resonator to a frequency measuring unit; and
an information storage that stores calibration curve information to specify a calibration curve that indicates a relationship between a density of the sensing object and a frequency variation amount of the piezoelectric resonator before and after supplying the sample solution.

2. The sensing sensor according to claim 1 , wherein
the information storage includes a barcode.

3. The sensing sensor according to claim 1 , wherein
the calibration curve information includes information to select a function that corresponds to a calibration curve among a plurality of functions.

4. An information processing device comprising:
a reading unit that reads the calibration curve information stored in the information storage of the sensing sensor according to claim 1 ; and
a data processing unit that obtains the density of the sensing object in the sample solution based on the frequency variation amount of the piezoelectric resonator before and after supplying the sample solution obtained from a measurement result of the frequency measuring unit and information of the calibration curve.

5. A sensing method using the sensing sensor, the frequency measuring unit and the information processing device according to claim 4 , the sensing method comprising:
obtaining the calibration curve information in the information storage and specifying the calibration curve;
connecting the sensing sensor to the frequency measuring unit and obtaining the frequency variation amount of the piezoelectric resonator before and after supplying the sample solution; and
obtaining the density of the sensing object in the sample solution from the frequency variation amount and the calibration curve specified by the calibration curve information.

6. A non-transitory computer-readable recording medium storing a program for causing the information processing device according to claim 4 to function of:
reading the calibration curve information in the information storage and specifying the calibration curve; and
obtaining the density of the sensing object in the sample solution based on the frequency variation amount of the piezoelectric resonator before and after supplying the sample solution obtained from the measurement result of the frequency measuring unit and the calibration curve.

Assignees

• Nihon Dempa Kogyo Co

Inventors

• Wakamatsu Shunichi
• Shinobu Wakako

Classifications

• G01N29/022

  Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices (microdevices per se B81B) · CPC title

• G01N29/4427

  with stored values, e.g. threshold values · CPC title

• G01G3/16

  measuring variations of frequency of oscillations of the body · CPC title

• G01G3/13 Primary

  having piezoelectric or piezoresistive properties · CPC title

• G01N29/222

  Constructional or flow details for analysing fluids (optoacoustic fluid cells G01N29/2425) · CPC title