SHAPE MEASURING DEVICE

• US 20200132439A1
• Filed: 10/15/2019
• Published: 04/30/2020
• Est. Priority Date: 10/29/2018
• Status: Active Grant

• Current Assignee: Mitutoyo Corporation
• Original Assignee: Mitutoyo Corporation
• Inventors: Nemoto, Kentaro, Yamagata, Masaoki, Kanno, Ryohei, Kawata, Hiroaki
• Granted Patent: US 10,895,449 B2
• Time in Patent Office: Days
• CPC Class Codes: G01B 11/002 for measuring two or more coordinates
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01B 11/245 using a plurality of fixed, simultaneously operating transducers G01B11/2408 - G01B11/2425, G01B11/255 take precedence
• CPC Class Codes: G01B 11/2518 Projection by scanning of the object
• CPC Class Codes: H01M 50/489 Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
• CPC Class Codes: H01M 8/0202 Collectors; Separators, e.g. bipolar separators; Interconnectors
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A shape measuring device includes a holding unit which holds a measuring target of which a shape is to be measured, a first measurement unit which measures relative coordinates of a plurality of measurement points on a first surface of the measurement target with respect to a defined point, a second measurement unit which operates independently from the first measurement unit and measures relative coordinates of a plurality of measurement points on a second surface of the measurement target, which is a reverse surface of the first surface, with respect to the defined point, and a calculation unit which calculates a shape of the measurement target on the basis of results measured by the first measurement unit and the second measurement unit.

Claims

1. A shape measuring device comprising:

a holding unit which holds a measuring target of which a shape is to be measured;

a first measurement unit which measures relative coordinates of a plurality of measurement points on a first surface of the measurement target with respect to a defined point;

a second measurement unit which operates independently from the first measurement unit and measures relative coordinates of a plurality of measurement points on a second surface of the measurement target, which is a reverse surface of the first surface, with respect to the defined point; and

a calculation unit which calculates a shape of the measurement target on the basis of results measured by the first measurement unit and the second measurement unit.

2. The shape measuring device according to claim 1, wherein the first measurement unit and the second measurement unit include a non-contact sensor which measures the plurality of measurement points without contacting the measurement target.

3. The shape measuring device according to claim 1, wherein the first measurement unit and the second measurement unit have a two-dimensional sensor which scans the surfaces of the measurement target.

4. The shape measuring device according to claim 1,

wherein the first measurement unit is a measurement unit which performs measurement using a first sensor facing the first surface of the measurement target,

the second measurement unit is a measurement unit which performs measurement using a second sensor facing the second surface of the measurement target, and

the holding unit fixes and holds the measurement target during a measurement period.

5. The shape measuring device according to claim 1,

wherein the first measurement unit and the second measurement unit are measurement units which perform measurement using the same sensor, and

the holding unit can switch a measurement target surface facing the sensor between the first surface and the second surface.