There are two straight lines on the observation window panel of the Sword Gauge. The first line is in the center of the observation window, and the second line is near the lower limit of the observation window. There is also a straight line in the observation window called the third straight line. , Turn the adjusting nut to tighten the steel rule to the third straight line in the observation window coincides with the straight line on the panel to read the measured value. It needs to be reminded here: the second straight line and the The three straight lines can be coincided; the distance between 10 and above must be the same as the first straight line on the panel and the third straight line to be correct. Pre-adjust the reading of the sword-receiving dial indicator at 25-30mm. Hang the steel ruler hooks of the sword gauge on the two measuring points, and then tighten the steel ruler, insert the pin into the appropriate small hole on the steel ruler, and fix the steel ruler with the hook. Turn the adjusting nut to tighten the steel rule until the reading line in the observation window is in line with the scale line on the panel. Read the values ​​in the steel ruler and dial indicator, and add the two to get the measuring point distance. After each measurement is completed, first loosen the adjusting nut, then withdraw the hook to remove the steel ruler, wipe it clean and put it back, and regularly apply anti-rust grease. 5 Regarding temperature correction When determining the initial value, the current temperature value should be recorded at the same time, and the environmental temperature should be measured at the same time during each subsequent sword observation. Only after the temperature correction data can be compared with the initial value. When the temperature increases, the measured value will become smaller; when the temperature decreases, the measured value will become larger. The correction calculation formula is: △ Lc = K × △ T × L Where: △ Lc—temperature correction value (㎜) K—correction coefficient (choose 12 × 10 ㎜ / ℃) △ T—temperature change (℃) L— Measuring point distance (㎜) -6 Correction calculation example: Set the measuring point distance to 10.5 meters, the temperature at the first measurement is 20 ℃, the measured value is 10500.36mm, the temperature at this measurement is 18 ℃, the measured value is 10500.86mm, The temperature correction value is: △ Lc = K × △ T × L = 12 × 10 m / m ℃ × (20-18) ℃ × 10.5m = 0.252mm -6 The actual measured value is: 10500.86-0.252 = 10500.608 The amount of sword change is: 10500.608-10500.36≈0.25mm Sponge Pan Brush,Kitchen Dish Scrubber,Dish Washing Brush,Dish Cleaning Brush Jiangmen Pengjiang Guanqi Trading Co., Ltd. , https://www.rikeryclean.com
How to use the digital display convergence meter (digital display convergence meter)