公开(公告)号：US20180202920A1

公开(公告)日：2018-07-19

申请号：US15737243

申请日：2016-06-16

Applicant: GASSECURE AS

Inventor： Lars BORGEN ,  Britta FISMEN ,  Thor Christian HOBÆK ,  Håkon SAGBERG

IPC: G01N21/15 ,  G01N21/3504

Abstract: A gas sensing apparatus (48) comprises a gas sensor arranged to use light to sense presence of a gas; an optical element (12, 40) arranged so that said light impinges thereon; and a thermoelectric heat pump (2, 24) having a cold side (6, 36) and a hot side (8, 34). The thermoelectric heat pump (2, 24) is configured to transfer heat energy from said cold side (6, 36) to said hot side (8, 34) in response to a supply of electrical energy provided to the thermoelectric heat pump (2, 24). The hot side (8, 34) of the thermoelectric heat pump (2, 24) is in thermal contact with the optical element (12, 40).