초록 ▼

A pyrometer according to the present invention calculates a temperature of a target to be measured by means of light emitting device for emitting reference light having three wavelengths to the target, and light measuring portions for measuring the intensity of the reference light, the intensity of

A pyrometer according to the present invention calculates a temperature of a target to be measured by means of light emitting device for emitting reference light having three wavelengths to the target, and light measuring portions for measuring the intensity of the reference light, the intensity of light reflected by the target, the intensity of light transmitted through the target and the intensity of light radiated by the target, respectively with respect to each of the three wavelengths. The transmitted light measured value of the reference light transmitted through the target is used for temperature calculation in addition to the measured values of the reference light, the reflected light and the radiated light, and therefore even if the target is a semi-transparent object, the true temperature thereof can be calculated.

대표청구항 ▼

Pyrometer comprising; (a) light emitting means for emitting reference light having at least three wavelengths to said target to be measured; (b) first light measuring means for measuring the intensity of the reference light emitted by said light emitting means with respect to said at least three wav

Pyrometer comprising; (a) light emitting means for emitting reference light having at least three wavelengths to said target to be measured; (b) first light measuring means for measuring the intensity of the reference light emitted by said light emitting means with respect to said at least three wavelengths to produce first signals; (c) second light measuring means for measuring the intensity of light reflected by said target with respect to said at least three wavelengths to produce second signals; (d) third light measuring means for measuring the intensity of light transmitted through said target with respect to said at least three wavelengths to produce third signals; (e) fourth light measuring means for measuring the intensity of light radiated by said target with respect to said at least three wavelengths to produce fourth signals; and, (f) calculating means for calculating a temperature of said target on the basis of a reference light measured value, a reflected light measured value, a transmitted light measured value and a radiated light measured value according to the first, second, third and fourth signals respectively with respect to each of said at least three wavelengths.