基于红外线检测原理,通过对硬件电路和相应软件的设计,开发出了近红外线法测量新拌混凝土含水量的检测装置;利用已知水灰比的混凝土,建立了新拌混凝土含水量检测装置的含水量-电压曲线,以此作为检测的标准曲线;验证了检测装置实际的检测能力和检测精度,含水量理论值与实测值误差在6%以内。 Based on the principle of infrared detection, a testing device for measuring the water content of fresh concrete by near infrared spectroscopy has been developed through the design of the hardware circuit and the corresponding software. By using the concrete with known water-cement ratio, a new measuring device of water content of fresh concrete Water content - voltage curve, as a standard curve of the test; verify the actual detection capability and detection accuracy of the detection device, the theoretical and measured water content error of less than 6%.