Transmission line for dielectric measurement and dielectric measuring device having the transmission line

• US 9,250,296 B2
• Filed: 01/04/2013
• Issued: 02/02/2016
• Est. Priority Date: 09/10/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Hayashi, Yoshihito, Omori, Shinji, Oshige, Ikuya
• Primary Examiner(s): He, Amy
• Application Number:
  US13/734,011
• Publication Number:
  US 20130120002A1
• Time in Patent Office: 1,124 Days
• Field of Search: 324/663, 324/693
• US Class Current: 1/1
• CPC Class Codes: G01N 27/221 by investigating the dielectric properties using microwaves G01N22/00; measuring loss factors or dielectric constants per se G01R27/26
• CPC Class Codes: G01R 31/36 Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Abstract

A transmission line substrate includes at least an insulating layer of a predetermined thickness, a pair of conductor layers arranged in a state of being opposed to each other such that the insulating layer is interposed between the conductor layers, the pair of conductor layers functioning as a high-frequency transmission line, and a fault part formed so as to make the conductor layer on one side disconnected, into which a sample to be measured can be introduced.

Claims

1. An electrical measuring device for obtaining information on an electrical characteristic of a sample, the electrical measuring device comprising:

a plurality of high-frequency transmission lines arranged in parallel with each other, each of the high-frequency transmission lines including;

an insulating layer,

a first conductor layer disposed adjacent to the insulating layer and having two ends located opposite one another,

a second conductor layer disposed adjacent to the insulating layer on a side opposite the first conductor layer and having two ends located opposite one another, the two ends of the second conductor layer being electrically connected to one another, and

a fault part formed in the first conductor layer so as to electrically disconnect the two ends of the first conductor layer unless a sample to be measured is introduced into the fault part.

2. The electrical measuring device according to claim 1, further comprising a flow path for sample introduction which passes a plurality of fault parts.

3. The electrical measuring device according to claim 1, further comprising a flow path for sample introduction having the fault part as a part of the flow path.

4. The electrical measuring device according to claim 1, further comprising:

a power supply section configured to supply power to the conductor layers forming the plurality of high-frequency transmission lines;

a sample introducing section configured to introduce the sample into the fault part directly or via a flow path; and

a measuring section configured to measure impedance that can be changed by introducing the sample into the fault part.

5. The electrical measuring device according to claim 4, further comprising an analyzing section configured to obtain permittivity of the sample based on the measured impedance.

6. The electrical measuring device according to claim 1, further comprising a conductor switch configured to provide an electrical connection sequentially between a transmitter and each of the plurality of high-frequency transmission lines.

7. The electrical measuring device according to claim 1, further comprising a receiver configured to measure an input wave signal to be transmitted through at least one of the high-frequency transmission lines.

8. The electrical measuring device according to claim 7, wherein the receiver is configured to measure a reflected wave signal having been transmitted through a portion of the

at least one of the high-frequency transmission lines.

9. An electrical measuring device for obtaining information on an electrical characteristic of a sample, the electrical measuring device comprising:

a high-frequency transmission line including;

an insulating layer,

a first conductor layer disposed adjacent to the insulating layer and having two ends located opposite one another,

a second conductor layer disposed adjacent to the insulating layer on a side opposite the first conductor layer and having two ends located opposite one another, the two ends of the second conductor layer being electrically connected to one another, and

a fault part formed in the first conductor layer so as to electrically disconnect the two ends of the first conductor layer when a sample to be measured is absent from the fault part.

10. The electrical measuring device according to claim 9, comprising a plurality of high-frequency transmission lines.

11. The electrical measuring device according to claim 10, wherein the plurality of high-frequency transmission lines are arranged in parallel with each other.

12. The electrical measuring device according to claim 10, further comprising a flow path for sample introduction which passes a plurality of fault parts.

13. The electrical measuring device according to claim 9, further comprising a flow path for sample introduction having the fault part as a part of the flow path.