德国AIM Systems涂层测厚仪Coat Analyzer

光热红外法涂层测厚仪的技术参数及产品特性

AIM Systems公司生产的CoatPro涂层测厚仪采用光热红外法工作原理，可以在线或离线对涂层厚度进行无损非接触式测量，测量时间短适用范围广，可以有效地帮助客户控制质量，节约成本，为客户的产线升级提供可靠的自动化检测手段，并未客户优化工艺提供重要的数据支持。 CoatPro涂层测厚仪采用的工作原理是光热红外法，其技术参数及产品特性请见附件。

非接触无损涂层测厚仪的技术优势

CoatPro 非接触无损涂层测厚仪采用光热红外法工作原理，可以在线或 离线对涂层厚度进行无损非接触式测量，测量时间短适用范围广，可以有效地帮助客户控制质量，节约成本，为客户的产线升级提供可靠的自动化检测手段，并未客户优化工艺提供重 要的数据支持。 CoatPro的技术优势请见文章内容。

光热红外法涂层测厚仪的测量原理

光热红外法涂层测厚仪CoatPro采用的工作原理是光热红外法。利用光源照射物体表面，通过对激励光源进行强度调制...... 详情请见文章内容。

涂层测厚仪文献：用脉冲相位热成像技术获得涂层厚度中的热行为变化

This paper presents a study on the use of pulsed phase thermography in the measurement of thermal barrier coating thickness with a numerical simulation. A multilayer heat transfer model was ussed to analyze the surface temperature response acquired from one-sided pulsed thermal imaging. The test sample comprised four layers: the metal substrate, bond coat, thermally grown oxide and the top coat. The finite element software, ANSYS, was used to model and predict the temperature distribution in the test sample under an imposed heat flux on the exterior of the TBC. The phase image was computed with the use of the software MATLAB and Thermofit Pro using a Fourier transform. The relationship between the coating thickness and the corresponding phase angle was then established with the coating thickness being expressed as a function of the phase angle. The method is successfully applied to measure the coating thickness that varied from 0.25 mm to 1.5 mm.

涂层测厚仪文献：通过热波成像评估涂层厚度：脉冲和锁相红外热成像的比较研究

In this work, we focused on the experimental arrangement of thermal wave imaging (TWI) methods for the quantitative evaluation of non-uniform topcoat thickness of thermal barrier coatings (TBCs). Two TWI techniques, pulsed thermography (PT) and lock-in thermography (LIT) were implemented on plasma sprayed TBCs with varied topcoat ranging from 0.1 mm to 0.6 mm. In PT, a short and high energy light pulse was applied on a sample surface whereas, in LIT, the sample surface was excited by a sinusoidal heat flux at several modulation frequencies ranging from 2Hz down to 0.01 Hz. Furthermore, an infrared camera was used to capture the surface temperature of a thermal wave that propagated into the sample and the effect of the applied heat flux in both techniques was analyzed by Fourier transform.

涂层测厚仪文献：瞬态热波技术评估表面涂层

A thermal wave interference model is developed to analyse the response of coatings to pulsed and stepped heating. The influence of the relative thermal properties of coating and substrate and the possibility of coating translucency are included in the analysis. The potential of transient techniques for the measurement of coating thickness is demonstrated and compared with the continuous wave technique. Experimental results obtained from plasma sprayed zirconia coatings are presented and compared with theoretical predictions.

涂层测厚仪文章：脉冲光热辐射法测量不透明膜下的空气隙厚度

We describe an experimental method to detect and measure a thin air gap between an opaque film and a substrate. The method is pulsed photothermal radiometry with signal shape analysis at suitable delayed times. This relies on the use of a short light pulse to heat up the surface of the opaque film by - 10℃, and detecting the infrared thermal emission from the surface as a function of time for a sufficiently long time. A numerical computation as weJl as an analytical approximation is developed to explain the dependence of the photothermal radiometry signal shape on the air gap thickness in the range of ten to hundreds of microns. Our work has applications not only for detecting subsurface air gaps and delaminations, but also for measuring the thermal resistance between layers for nondestructive characterization ofadhesion bond strengths.

涂层测厚仪文献：基于脉冲红外热成像激光技术评估涂料厚度变化.

In this paper, a pulsed Infrared thermography technique using a homogeneous heat provided by a laser source is used for the non-destructive evaluation of paint coating thickness variations. Firstly, numerical simulations of the thermal response of a paint coated sample are performed. By analyzing the thermal responses as a function of thermal properties and thickness of both coating and substrate layers, optimal excitation parameters of the heating source are determined. Two characteristic parameters were studied with respect to the paint coating layer thickness variations. Results obtained using an experimental test bench based on the pulsed Infrared thermography laser technique are compared with those given by a classical Eddy current technique for paint coating variations from 5 to 130 l m. These results demonstrate......

涂层测厚仪文献：光声及相关光热理论

We review the theory and applications of the photoacoustic and related methods belonging to the general area of photothermal measurement techniques. This essay is intended for researchers especially unfamiliar with the basic ideas and potentialities of this rapidly developing field. The applications of photothermal techniques include spectroscopic applications, such as infrared and microwave spectroscopies, monitoring of non-radiative deexcitation processes, biological applications, and measurements of thermal properties.

涂层测厚仪测量案例：光热红外法测量涂层厚度

文中主要讲述了如何利用离线涂层测厚仪 CoatAnalyzer 对三个表面曲率不同的塑料样品上的涂层进行厚度测量。

涂层测厚仪应用文章：固体光学效应理论

When chopped light impinges on a solid in an enclosed cell, an acoustic signal is produced within the cell. This effect is the basis of a new spectroscopic technique for the study of solid and semisolid matter. A quantitative derivation is presented for the acoustic signal in a photoacoustic cell in terms of the optical. thermal, and geometric parameters of the system. The theory predicts the dependence of the signal on the absorption coefficient of the solid, thereby giving a theoretical foundation for the technique of photoacoustic spectroscopy. In particular, the theory accounts for the experimental observation that with this technique optical absorption spectra can be obtained for materials that are optically opaque.