US 12,461,043 B2
Dielectric spectroscopy measuring device and dielectric spectroscopy measuring method
Masahito Nakamura, Musashino (JP); Takuro Tajima, Musashino (JP); and Michiko Seyama, Musashino (JP)
Assigned to NTT, Inc., Tokyo (JP)
Appl. No. 18/275,556
Filed by NTT, Inc., Tokyo (JP)
PCT Filed Feb. 5, 2021, PCT No. PCT/JP2021/004219
§ 371(c)(1), (2) Date Aug. 2, 2023,
PCT Pub. No. WO2022/168250, PCT Pub. Date Aug. 11, 2022.
Prior Publication US 2024/0102943 A1, Mar. 28, 2024
Int. Cl. G01N 22/00 (2006.01); A61B 5/0507 (2021.01); A61B 5/0537 (2021.01); A61B 5/145 (2006.01); A61B 5/1495 (2006.01); G01N 27/02 (2006.01)
CPC G01N 22/00 (2013.01) [A61B 5/0507 (2013.01); A61B 5/0537 (2013.01); A61B 5/145 (2013.01); A61B 5/1495 (2013.01); G01N 27/026 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A dielectric spectroscopy measuring device comprising:
a signal generator configured to generate electromagnetic waves;
a signal separator configured to separate the electromagnetic waves according to a transmission direction and output the separated electromagnetic waves to an output destination corresponding to the transmission direction;
a changeover switch configured to receive the electromagnetic waves generated by the signal generator via the signal separator, switch an output destination, and output the received electromagnetic waves, and to output electromagnetic waves returning from the output destination to the signal separator;
a sensor configured to irradiate a measurement target with the electromagnetic waves output by the changeover switch, and output measurement target waves obtained by irradiation to the changeover switch;
a calibration standard including a circuit for a calibration standard, the circuit outputting reflected waves for calibration generated by receiving the electromagnetic waves output by the changeover switch to the changeover switch;
a signal receiver configured to receive the measurement target waves and the reflected waves for calibration via the signal separator; and
an operator configured to receive a measurement value output by the signal receiver receiving the measurement target waves and the reflected waves for calibration, and correct the received measurement value of the measurement target on the basis of the measurement value corresponding to the received reflected waves for calibration,
wherein the signal generator, the signal receiver, the changeover switch, the sensor, and the signal separator are formed on one circuit board as a dielectric spectrometer,
wherein the signal generation unit configured to generate the electromagnetic waves from after the switching of an output destination by the changeover switch unit until before the next switching.