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Reverse reflector illumination measurement instrument


Achieve spectral matching. 2.380C196KC this part of SCM control system is the control center of the measurement system, the block diagram in Figure 5. Figure 5 Control system uses a single chip Intel's high-performance 16-bit MCU 80C196KC in the chip, its internal EPRoMoM to 16K bytes of internal RAM is 488 bytes, 24 bytes of eleven special register. GAL16V8 chip electrical erase technology, programming can be repeated, a GAL chip can achieve a variety of logic combinations, saving hardware costs. Where 62,256 is the data memory, program memory is 27128, 74HC573 for the latch, 0832 is D / A converter, 8155 as the I / O port to use, MAX232 for level conversion. Peng Qinghua LCD far the company MGLS160128 selection series,[link widoczny dla zalogowanych], embedded T6963C display module, the microcontroller can use the data bus and control bus directly from I / O devices to access the form control of the display module, its interface diagram shown in Figure 6. P4P3WRRD74HC573HGAL16V874HC245II an LCD C/DD0. D7WRRDCERESET (HALT) VCCFG (GND) Vad. (Ve.) (+ V) Figure 6 Schematic diagram of LCD module interface devices in order to achieve miniaturization, use TPp. P-A series of micro panel printer, 80C196KC by 8155 the PA, PB and PC connected to the printer port, and keyboard with touch-interactive operation. 3 Conclusions This paper describes the reverse measurement instrument illumination reflector structure and working principle of the composition. The measuring device can approximate the actual reverse the work of the reflector, but also has the advantages of small and intelligent, measured at the same time point image can be observed on the reverse of the processing and use of reflectors has practical significance. References [1] Zhang mo. Applied Optics. Beijing: Mechanical Industry Press, 1987 [2] Du Ying. Mathematical model of reverse reflector and light field with divergent light measurement technology. Master thesis, Tianjin University, 1997 [3] Zhang Yuhong. Reverse key test reflector technology research. Master thesis, Tianjin University, 2000 [4] Guoxiong,[link widoczny dla zalogowanych], gold seal Chih. Control circuit. Beijing: Mechanical Industry Press, 2001 [5] Sun Han Fang. Intel16-bit microcontroller. Beijing: Beijing Aerospace University Press,】 995 (Continued from page 6) 2, turbine flowmeter calibration. Coefficient and flow meter to determine the accuracy of the speed of the turbine flowmeter flow meter is a certain flow range, the viscosity of certain fluids, turbine angular velocity is proportional to the fluid flow. Turbine flowmeter output pulse frequency is proportional to the flow through the meter, the proportional coefficient K is called flow meter factor. Expressed by the formula K =. Factory / q where plant for the turbine flow meter pulse frequency, q is the flow through the meter. The volume of liquid flow tube with piston-type examination. Volume of a tube model JHYG 150, flow range: 0.56m3 / h ~ 560m3 / h, 0.03% accuracy. Test medium for light diesel fuel. Requirements under the regulations, in the context of traffic 25m3/h--250m3/h test, each test point 9 test, test points are recorded for each test condition. Different flow conditions on the test results were analyzed, the flow meter linearity, repeatability, accuracy, respectively, 0.152%, 0.031%, 0.158%. 3 Conclusion design turbine flowmeter DN150 after the completion of 140 hours for the use of tests,[link widoczny dla zalogowanych], tests show that the flow meter has a reliable,[link widoczny dla zalogowanych], stable performance, easy to start dismantling, simple, clear reading,[link widoczny dla zalogowanych], intuitive features, and with the DN150 pipeline system has good matching. Its main feature is: 1) DlN150 flow meter turbine flow meter will be integrated with the rectifier, eliminating the flow meter on the flow tube upstream of the impact of the state and improve the measurement accuracy, and compact structure, small size, light weight, with the same flow, with the rated pressure positive displacement flow meter compared to the weight of the volume flow meter is equivalent to 1 / 20. 2) DN150 turbine flow meter with a multi-stage non-linear correction for non-instrument test point interpolation coefficients , when operation of the instrument under different conditions using different coefficients to improve the measurement accuracy. 3) DN150 turbine flowmeter built-in temperature sensor, available online compensation due to temperature variation and improve the measurement accuracy. * 9

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