Photoelectric colorimeter

Abstract

The invention provides a photoelectric colorimeter which comprises a host, a color measurement device and a light source chamber, wherein a testboard is arranged on the host; the color measurement device is fixedly arranged in the host, corresponding to the testboard, and the color measurement device is connected and communicated with a main control unit in the host through a cable and is connected with the light source chamber through an optical fiber; the light source chamber is fixedly arranged in the host and is internally provided with a tungsten lamp in a sealed way, and the tungsten lamp is powered by a stabilized current power supply and transmits light to the color measurement device through the optical fiber. In the invention, the color measurement device is separated from the light source chamber and keeps a certain distance with the light source chamber, and the color measurement device and the light source chamber are both fixedly connected in the host; and color measurement is completed under the assistance of the testboard, thereby preventing the temperature rise of the tungsten lamp from interfering with the normal working of the color measurement device and reducing mechanical disturbance during color measurement; and thus, the photoelectric colorimeter has the advantages of stable color measurement and greatly improved color measurement precision and automation level.

Description

technical field [0001] The invention relates to a photoelectric color measuring instrument. Background technique [0002] Color measuring instruments are mainly divided into spectroscopic color measuring instruments and photoelectric integral color measuring instruments. Spectroscopic color measuring instruments need to use light-splitting components such as gratings, and the mechanical structure and circuit structure are complex, so the cost is high and the price is high. Photoelectric integral colorimeters are more widely used in the field of color measurement because they do not require spectroscopic elements, are simple in structure, low in cost, and cheap in price. [0003] The current photoelectric color measuring instrument mainly adopts the separation method of the measuring head and the host, and the measuring head and the host are connected by a multi-core cable. The measuring head includes a tungsten light source, a collimating lens, an integrating sphere, a color...

AI Technical Summary

Problems solved by technology

In addition, due to the high temperature of the probe, it is easy to be disturbed by external factors during the measurement process, which affects the stability of its measurement.

If the tungsten light source is set in the host, and the probe is connected to the probe through an optical fiber, and the light source is separated from the probe, then the probe needs to be moved when measuring the sample, and the optical fiber is affected by mechanical disturbances, etc., which will have a great impact on the stability of light transmission. Influence, so that the stability of color measurement is greatly reduced

Images