Title:
アクティブ熱流制御装置を有する秤
Document Type and Number:
Japanese Patent JP6751640
Kind Code:
B2
Abstract:
A balance (30) is configured as a single unit with a weighing pan (21) enclosed in a weighing compartment (22) and with a balance housing (23) adjoining the weighing compartment (22), wherein the balance housing (23) contains a weighing cell compartment (24) enclosing a weighing cell, an electronics compartment (25) containing electrical and electronic circuit elements, a thermoelectric heat pump module (27) and a heat flow controller (28). According to the invention, the balance (30) includes a means to determine a net heat flow (P net ) inside the balance housing (23) in the direction from the weighing cell compartment (24) to the electronics compartment (25) to make the quantity (P net ) available to the heat flow controller (28) as a control input. The thermoelectric heat pump module (27) is arranged inside the balance housing (23) and is regulated by the heat flow controller (28) based on the control input quantity (P net ) to generate an active heat flow (P A ) of a magnitude and direction to hold the net heat flow (P net ) at a level that essentially equals the rate of heat dissipation produced inside the weighing cell compartment (24).
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Inventors:
Stephan Buehler
Daniel Mock
Michael Geiser
Daniel Mock
Michael Geiser
Application Number:
JP2016198096A
Publication Date:
September 09, 2020
Filing Date:
October 06, 2016
Export Citation:
Assignee:
METTLER-Toledo Game Behr
International Classes:
G01G23/48; G01G21/28
Domestic Patent References:
| JP2028522A | ||||
| JP2004264283A | ||||
| JP10111167A | ||||
| JP2014164663A |
Foreign References:
| US20060140246 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Mitsuru Ueda
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Mitsuru Ueda