Patent ID: 11946887
Assignee: DIAMON TECH AG
Field: Measurement (Instruments)
Classification: CPC A  G | IPC G

Claim 23:
24. A method for analyzing a substance, using a device according to claim 1, wherein the method comprises:
generating at least one intensity-modulated electromagnetic excitation beam with an excitation transmission device with at least one excitation wavelength, the excitation transmission device irradiates the at least one electromagnetic excitation beam into a volume of the substance which is located below a surface of the substance,
detecting a response signal using a detection device, and
analyzing the substance on the basis of the detected response signal, wherein
successively determining response signals using different modulation frequencies of the excitation transmission device, including temporal response signal waveforms for different wavelengths of the at least one electromagnetic excitation beam, and
correlating a plurality of response signal waveforms at different modulation frequencies with one another and wherein
obtaining information specific to a depth range under the surface of the substance from the correlated response signal waveforms.