Measuring device utilizing a thermo-electromotive element

A measuring device comprising:

• one conductive type layer provided on the surface of a diamond thin film;
• and
• a metal electrode provided in contact with said one conductive type layer;
• means for applying a pulsewise heating to said diamond thin film;
• and
• means for determining the response characteristic of said diamond thin film following a pulsewise heating with the relevant heating means by measuring the thermo-electromotive force generated between said one conductive type layer and said metal electrode.

A measuring device comprising:

• means for obtaining a first response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n ;
• means for obtaining a second response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n+1 ;
• means for comparing said first response characteristic with said second response characteristic and obtaining an output dependent on a parameter represented by .alpha..sub.n+1 ;
• wherein said means for obtaining a first response characteristic and said means for obtaining a second response characteristic have the respective thermo-electromotive elements, and
• said first and second response characteristics are detected as a change in the temperature of a diamond thin film to pulsewise heating.

A measuring device comprising:

• means for obtaining a first response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n ;
• means for obtaining a second response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n+1 ;
• means for comparing said first response characteristic with said second response characteristic and obtaining an output dependent on a parameter represented by .alpha..sub.n+1 ;
• wherein said means for obtaining a first response characteristic and said means for obtaining a second response characteristic have the respective thermo-electromotive elements,
• said first and second response characteristics are detected as a change in the temperature of a diamond thin film to pulsewise heating, and
• said film material with its thermal conductivity K.sub.s, specific heat C.sub.s, and density P.sub.s at 300 K, has a size of L=1 mm square and a time constant .tau., defined by .tau.=(C.sub.s p.sub.s L.sup.2 /K.sub.s .pi..sup.2), not greater than 1 msec.

A measuring device comprising:

• means for obtaining a first response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n ;
• means for obtaining a second response characteristic dependent on parameters represented by .alpha..sub.1, .alpha..sub.2 . . . .alpha..sub.n+1 ;
• means for comparing said first response characteristic with said second response characteristic and obtaining an output dependent on a parameter represented by .alpha..sub.n+1 ;
• wherein said means for obtaining a first response characteristic and said means for obtaining a second response characteristic have the respective thermo-electromotive elements,
• said first and second response characteristics are detected as a change in the temperature of a diamond thin film to pulsewise heating, and
• said film material with its thermal conductivity K.sub.s, specific heat C.sub.s, and density p.sub.s at 300 K, has a size of L=1 mm square and a time constant .tau., defined by .tau.=(C.sub.s p.sub.s L.sup.2 /K.sub.s .pi..sup.2), not greater than 5 msec.

A measuring device comprising:

• a diamond thin film;
• a thermo-electromotive element formed on the surface of said diamond thin film;
• means for applying a pulsewise heating on said diamond thin film;
• and
• means for processing an output of said thermo-electromotive element,
• wherein a change in the temperature of said diamond thin film following a heating from said means for applying a pulsewise heating is converted into an electric signal by using said thermo-electromotive element;
• and
• wherein means for processing an output from the thermo-electromotive element
• integrates the outputs from a thermo-electromotive element prior to the pulsewise heating,
• integrates the outputs from a thermo-electromotive element after the pulsewise heating, and
• computes the difference between the above two integrated values.

A measuring device using a film material wherein said film material with its thermal conductivity K.sub.s, specific heat C.sub.s, and density p.sub.s at 300 K,

• has a size of L=1 mm square and a time constant .tau., defined by .tau.=(C.sub.s p.sub.s L.sup.2 /K.sub.s .pi..sup.2), not greater than 1 msec, and
• a thermo-electromotive element is provided on the surface of said film material, the measuring device including:
• means for the pulsewise heating of the film material;
• and
• means for processing an output from the thermo-electromotive element;
• wherein said means for processing an output from the thermo-electromotive element integrates the outputs from a thermo-electromotive element prior to the pulsewise heating and the outputs from a thermo-electromotive element after the pulsewise heating, and computes the difference between the above two integrated values.