Intelligent Test System Of Long Gauge Block Comparator

Liuzhou is an industrial city in Guangxi,Liuzhou machinery manufacturing industry out put value of Liuzhou a bout 70% of total industrial out put value, in Liuzhou machinery manufacturing, r esponsible form easuring the l ength of a n extremely important role. Length measurement is the oldest and most widely involved in the measurement. Length measurement of gauge blocks is an important physical gauge, is the m ost pr ecise m easurement of the length of t he s tandard m easuring instruments. With t he de velopment of t echnology, the e nterprises o f Liuzhou machinery manufacturing expect more gauge blocks can be calibrated with higher length traceability. In currently Liuzhou M easurement Institute c an test l ess t han 100mm gauge blocks for ntelligent, greater than 100mm can't. So de veloping a gauge block calibration system with high-precision and intelligent of greater than 100mm is imminent.The traditional gauge block calibration system is g enerally co ntacting mechanical measurement, the measurement results directly read from the dial pointer, which is difficult to ensure accuracy. The working environment of any small changes will have an important impact on the measurement results, affect the measurement accuracy, and t he ope ration is not c onvenient. The s ubject in the traditional mechanical m easurement m ethods on further r esearch t o be t aken hi gh-precision inductive displacement sensors and computer, instead of reading some of measuring machine, the use of sensors, measuring stand, computer length measuring unit a gauge block calibration system.The main research contents include:1.On t he ba sis of unde rstanding gauge bl ock value transfer s ystems i n the country's status, calibration rules a nd calibration m ethods ,a gauge bl ock calibration system is designed.2. In the study of inductive sensors, laser sensors, grating sensors, capacitive sensors a nd ot her t ypes of m icrometer di splacement sensor are analyzed a nd compared. Because hi gh accuracy l aser s ensor, but t he m easurement s low and demanding on the environment, high investment costs; grating sensor accuracy is low; capacitive sensors susceptible to interference and range is too small; finally determine the selection Z0.5-28P-type displacement sensor instead of the traditional measuring machine opt ical r eading s ystem. After tr ansformation, scaling and c alibration equipment have been determined with the experimental requirements. 3. Analysis measurement software it can store and process data, determine the grade of tested gauge blocks and print certificates.4. Improve t he a ccuracy of m easuring equi pment, one aspect to improve t he measurement accuracy, because the experimental environment also involved, and the gauge bl ock m easuring t emperature requirements a re ve ry high, s o t he pr oposed construction of a laboratory environment program to improve the measurement of gauge block measurement accuracy.5.Measuring uncertainty analysis to show that it meets the requirement of calibrating third grade gauge block(> 100mm).A series of experiment to verify the reliability of the system.