Former Kalgoorlie Mining Associates property. Wooden box opens at both top and base. Has plaque on lid "Made specially for H.B. Selby & Co. Pty Ltd / Melbourne & Sydney". Top lid has instruction sheet in German. Pyrometer is secured in box by swivelling plastic tab. Needs to be removed from box to operate. Base of box contains a scale to interpret the instrument's reading. Has handwritten date "11.8.38" written on scale. Dictionary of Scientific Instruments reads; "Instrument used for the measurements of temperatures higher than those for which a glass thermometer is suitable. In its simplest form it depends on the expansion of a solid metal rod or of a gas, but more commonly it consists of an electrical device. The pyrometer is most common use depends on the electrical current generated by a junction of two different metals or alloys when it is heated. This pattern will indicate temperatures up to about 1,350 degrees or 1400 degrees celsius. For temperatures higher than that, Radiation Pyrometers are used. In this form, the heat is focused by means of a mirror on to a small thermo-couple, or on to a metallic spiral. The instrument, therefore, does not come into direct contact with the hot body.
Department:
History DepartmentCollection
History Collection
Collection Item Data
| Accession Number: | H1989.756 |
|---|
| Accession Date: | 3 Aug 1989 |
|---|
Material
| Wood/Wood | Wood box, leather strap, metal, glass
|
|---|
Measurement
The WA Museum is in the process of digitising its collections. This record may not have been reviewed by curatorial staff and may be inaccurate or incomplete. Research departments are continually working on these collections by adding new objects and reviewing existing content when new information is made available.
Enquiries can be emailed to reception@museum.wa.gov.au
