Five key factors that affect the tensile machine accuracy
1 2 3 4
Skill Support

 

  Rally class accuracy is a very important technical indicators, factors depends on the accuracy of the tensile testing machine?In this paper, we will answer this question:
  1.The first is the drive the sensor moving parts ball screw, screw if there is a gap in the future to make the test data will directly affect the maximum deformation and elongation after fracture of the test.Electronic universal testing machine on the market and some screw ordinary screw with a T-shaped, so First, the gap is relatively large, the frictional force is relatively large, short life is.
  2.The second is the transmission system of electronic universal testing machine, test drive system on the market today and some use reducer, and some ordinary belt, the main disadvantages of these two transmission mode: the former require regular lubricating the latter ensure transmission synchronization affect the test results can not.
  3.Followed by the testing machine force sensor, the sensor determines the quality of the testing machine accuracy and stability of the force measurement, tensile testing machine currently on the market with a the sensor small force value general S-type sensor, great value generally Spoke sensor inside the sensor is generally in resistance strain gauge, strain gauge accuracy is not high or fixed strain gauge plastic anti-aging ability is not good in bad sensor materials will affect the accuracy and service life of the sensor.
  4. Again is the power source of the testing machine (motor), also known as motor market testing machine with the ordinary three-phase motor or inverter motor, this motor analog signal control, the control of the reaction is slow, inaccurate positioning, speed range narrow.There are no high-speed low-speed or low-speed no high-speed, and the speed control is not accurate.
  5.The last test machine monitoring and control system (software and hardware), currently on the market most of the tensile testing machine monitoring and control system uses an 8-bit MCU control, low sampling rate, and anti-jamming capability, the other is the AD converter, If the number of bits of the AD converter is low resolution.Then the measurement is not accurate.
  Well, said so much, what do not understand.Can be directly linked to our company, telephone 0769-82232035!
  
  The article source http://www.bangtest-china.net/  of Bang Instrument CO.,LTD

Products
Contact us
Links

Wheelchairs Test Series   Tensile Strength Tester   Paper / Cardboard / Carton   Formaldehyde / VOC   Tape / Stickers   Furniture / Luggage / Office Furniture   Environmental Test Chamber   Temperature and humidity chamber   Mattress testing equipment / Bed Test  

Copyright© 2003-2012 Bang Instrument Co.,LTD Copy right    Backgroud management