Title:
ELECTRONIC BALANCE
Document Type and Number:
WIPO Patent Application WO/2018/134984
Kind Code:
A1
Abstract:
An electronic balance (1) is provided with a displacement part (5) and a detection part (6). A slit (51) is formed in the displacement part (5), and a light-emitting diode (61) and a photodiode (62) are included in the detection part (6). The slit (51) in the displacement part (5) is formed such that a width D1 in the vertical direction (rocking direction) is not greater than 0.4 mm. Further, light having high directivity is emitted from the light-emitting diode (61). In addition, the light from the light-emitting diode (61) passes through the slit (51) having a narrow width of not greater than 0.4 mm, and is received by the photodiode (62). Therefore, measurement precision can be improved by magnifying a change of signal intensity of the photodiode (62) with respect to the unit displacement amount of the displacement part (5). As a result, measurement precision can be improved without causing a configuration failure.
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Inventors:
FUJITA KOSUKE (JP)
Application Number:
PCT/JP2017/002028
Publication Date:
July 26, 2018
Filing Date:
January 20, 2017
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01G7/04
Foreign References:
| JP2013181979A | 2013-09-12 |
Attorney, Agent or Firm:
YOSHIMOTO, Tsutomu et al. (JP)
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