New product of U85 micro laser distance sensors use highly focused class 2 laser to detect objects or measure distances, and can return a measured value via varieties intface( serial, usb, rs232, rs485, bluetooth etc.). The electronic distance sensor is a very small Laser Distance Sensor, but high resolution up to 1mm and long distance measuring sensor - teachable measuring range of up to 30m. Extremely accurate distance sensing sensors, errors down to ± 1mm. And the mini sensors and measurements support continuous measurement function, great for compact solutions(eg: robots) with the smallest Laser Distance Sensor of the world!
Parameters of U85:
Accuracy
±1 mm (0.04 inch)
Measuring Unit
mm
Measuring Range (without Reflection)
0.03-20m/0.03-30m
Measuring Time
0.1~3 seconds
Laser Class
Class II
Laser Type
620nm-690nm, <1mW
Size
41*17*7mm (±1 mm)
Weight
About 4g
Voltage
DC2.0~3.3V
Electrical Level
TTL/CMOS
Certifications
CE, FCC, RoHS, FDA
Operating Temperature
0-40 ℃ (32-104 ℉ )
Storage Temperature
-25~60 ℃ (-13~140 ℉)
Mini Laser Distance Sensor,Optical Laser Distance Sensor,Smallest Laser Range Sonsor,Laser Measuring Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemodule.com
1. The main body of the tensile testing machine and the dynamometer should be installed on the foundation of the concrete. The basic dimensions are based on the shape and the foundation drawing, leaving the grounding screw and the lower jaw screw hole and other wires to install the pipe and other devices. .
The upper plane of the foundation should be flat, and the horizontal ruler should be used for alignment. After the foundation is dry, the test machine is installed.
1 Installation and preliminary accuracy of the tensile testing machine The main body and the dynamometer are respectively transported to the foundation of the concrete. The distance between the main body and the dynamometer is adjusted according to the shape and the foundation map, and the direction is adjusted. Small pieces of iron are inserted into the bottom of the main body and the dynamometer (between the foundations), and are separately corrected by a square level meter of 0.05/1000 precision.
The initial alignment of the main body can be measured at two different positions of the two columns, using a square level. The non-lead sag should not exceed 0.3/1000. Then, the square level can be used to locate the vertical and horizontal positions on the outer surface of the cylinder. Plumbness.
2 The accuracy of the tensile testing machine is corrected. After the initial accuracy of the testing machine is corrected, the initial operation test is carried out after the oil pipe, power supply and oil filling are turned on. When the test is in good condition, the accuracy of the testing machine is corrected.
Use a square level instrument to lean on the working platform, find the vertical cylinder sag, adjust or increase or decrease the horn under the base, so that the error should not be greater than 0.10/1000.
After the accuracy of the test machine is found, all the voids under the machine base are filled with cement slurry to keep the frame and the cement foundation well combined to prevent the test machine from being leveled due to vibration during use.
After the anchor nut is poured, do not tighten the anchor nut and start the test machine until the cement is dry. (The cement drying time is generally not less than 10-15 days.) After the cement is completely dried, fasten the nut of the transporting foot and review the installation accuracy of the testing machine, which is consistent with the accuracy of the alignment. If it does not meet, it should be re-corrected.
During the use of the tensile testing machine, the looseness is likely to occur due to the vibration during the test. Therefore, after the tensile testing machine is used for a period of time, the relevant parts should be tightened.
2. When taking over the oil pipe connecting the main body and the dynamometer, first clean the inside of the oil pipe with kerosene to ensure the cleanness in the oil circuit. Care should be taken to ensure that the gasket is intact to prevent oil leakage during high pressure.
3, the oil specifications are selected in the hydraulic rotation, N68 precision machine tool hydraulic oil can be used, or other similar specifications of the oil viscosity (100 ° C) 11-14 centistokes.
Tensile testing machine precautions
The tensile tester shall be installed in a clean, dry, vibration-free room at room temperature of 20 °C ± 10 °C, and shall be noted that the beam bending test and the use of an extensometer shall be tested and the maintenance of the equipment shall be sufficient around the test machine. The vacant area.