Patent ID: 11857332
Assignee: HENKEL AG & CO. KGAA
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An arrangement for determining a degree of elongation of hair, comprising:
a detection unit for detecting hair characteristics; and
an evaluation unit for evaluating the detected hair characteristics and for determining a degree of elongation of hair based on the detected hair characteristics,
wherein the detection unit includes a near infrared sensor, NIRS,
wherein the detection unit is configured to irradiate a hair sample with electromagnetic waves in the infrared region and to detect an absorbance of the hair sample in a wavelength range from about 800 to about 2500 nm,
wherein the detection unit is configured to generate an absorption spectrum of the hair sample in the wavelength range from about 800 to about 2500 nm and to provide the absorption spectrum to the evaluation unit, and
wherein the evaluation unit is configured to compare the absorption spectrum with a calibration model and to determine a degree of elongation of the hair sample based on the absorption spectrum and the calibration model.