Calorimetric detection unit and calorimetric member for conduction flow type calorimeter

• US 4,993,842 A
• Filed: 07/13/1989
• Issued: 02/19/1991
• Est. Priority Date: 07/15/1988
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Square Enix
• Original Assignee: Agency for Industrial Science and Technology, Ministry of International Trade & Industry (Government of Malaysia)
• Inventors: Tanaka, Yoshio, Morimoto, Satoshi, Ito, Shojiro
• Primary Examiner(s): Yasich, Daniel M.
• Application Number:
  US07/379,364
• Time in Patent Office: 586 Days
• Field of Search: 374/31, 374/32, 374/38, 374/29
• US Class Current: 374/39
• CPC Class Codes: G01K 17/00 Measuring quantity of heat measuring temperature by calorimetry G01K3/00 - G01K11/00; specially adapted for measuring thermal properties of materials, e.g. specific heat, heat of combustion G01N
• CPC Class Codes: G01K 17/06 Measuring quantity of heat conveyed by flowing media, e.g. in heating systems G01K17/02, G01K17/04 take precedencee.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
• CPC Class Codes: G01N 25/482 concerning the temperature responsive elements measuring temperature or quantity of heat, thermally-sensitive elements G01K; thermoelectric devices H10N10/00, H10N15/00

Abstract

A detection unit essentially consists of (I) a plurality of calorimetric detection elements for the conduction flow type calorimeter each consisting essentially of a plurality of thermopiles severally supported on heat sinks and (II) a heat insulating member interposed between the adjacent calorimetric detection elements. A calorimetric measuring member for a conduction flow type calorimeter comprises a pair of the detection units and a sample pipe fixed in place between the pair of detection units.

Claims

1. A calorimetric detection unit for conduction flow type calorimeter, comprising:

sample pipe means;

a plurality of calorimetric detection elements each comprising two members;

said two members each comprising an inner heat sink having one set of thermopiles supported on an inner side thereof, and an outer heat sink of a shape substantially semicircular in lateral cross section and having a recess for accommodating therein said inner heat sink;

said two members being assembled into a calorimetric detection element by facing two sets of thermopiles opposite to each other across a given space and having said sample pipe means passed therethrough and enclosing two inner heat sinks by two outer heat sinks;

a plurality of insulating members each interposed a preselected distance between adjacent ones of said plurality of calorimetric detection elements for insulating and spacing adjacent calorimetric detection elements from each other such that said sample pipe means passes through each of said insulating members; and

an electric resistance heating wire wound around said sample pipe means and wherein said sample pipe means is laid in a zigzagged pattern;

whereby individual or total calories of said plurality of calorimetric detection elements are measured.

2. A calorimetric detection unit according to claim 1, wherein said thermopiles are those of one kind selected from the group consisting of thermocouples arranged in series connection, thermoelectric piles, and PN semiconductors arranged in series connection.