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Optical measuring device
申请号	JP25786184	申请日	1984-12-06	公开(公告)号	JPS61134608A	公开(公告)日	1986-06-21
申请人	Chino Works Ltd;			发明人	SHIMOYAMA HIROSHI; EMOTO MITSUTAKA;
摘要	PURPOSE:To perform the measurement stably with a high precision even in high-temperature and high-humidity circumstances by storing a detector in a double case and cooling the inside case to a prescribed temperature. CONSTITUTION:The first case 6 where a detector 5, which projects light to an object to be measured from a hood 50 under the object to measure its properties, is stored and a heat insulating material 60 is provided on the inside is stored in the second case 7. A dry air A is supplied into the case 7 from the external, and this air A is branched into three by manual valves 81, 82, and 83, and the air from the manual valve 81 is supplied to a cooling part 10 through a solenoid valve, the an air A1 from the valve 82 is released to the case 7, and an air A3 from the valve 83 is supplied to the detector 5 in the case 6. A cooled air A2 cooled by the cooling part 10 is supplied to the case 6 and is charged into the case 7 and is discharged out of the case 7 from the outside peripheral part of the hood 50 together with the air A1 from the manual valve 82. The air A2 from the cooling part 10 keeps the temperature in the case 6 constant by turning on and off a solenoid valve 9 with a control means 11 including a temperature detector 110 in the case 6.
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