According to the principle of adaptive compensation, the weighing module completes the nonlinear error in the whole weighing range every time after collecting the weighing signal and preprocessing the data. Comparison of weighing output before and after adaptive nonlinear error compensation. Is the output before and after weighing compensation, in which "single RBFNN compensation" is the nonlinear error compensation within the full range by using a single RBFNN, and it is the nonlinear error output before and after weighing compensation.
020-34563445The weighing module adopts the electronic weighing device integrating modern sensor technology, electronic technology and computer technology, so as to meet and solve the "fast, accurate, continuous and automatic" weighing requirements put forward in real life, and at the same time effectively eliminate human errors, making it more in line with the application requirements of legal metrology management and industrial production process control.
Based on the principle of full-bridge measurement, through the linear relationship between the output voltage of the circuit and the standard weight, the voltage dimension V is changed to the weight dimension G, which becomes an original Electronic scale. Among them, the most important component in the measuring circuit is the resistance strain type weighing sensor.
The full-bridge measuring circuit is adopted, so that the error generated by the system is smaller and the output data is more accurate, so as to meet the requirements of the A/D converter for the input signal level. The function of A/D conversion is to convert analog signals into digital signals, carry out analog-to-digital conversion, then send the digital signals to the display circuit, and finally display the measurement results by the display circuit.
technical parameter
* Rated load (R.C.): 10t, 20t, 30t, 50t, 60t, 100t, 150t, 200t.
* rated output (r.o.): 2 0.005 mv/v.
* Zero point balance: 0.030mv/v.
* Comprehensive error: ±0.03%R.O 。
* nonlinearity: ±0.03%R.O
* Lag: ±0.03%R.O 。
* Repeatability ±0.02%R.O 。
* Creep (30min): ±0.03%R.O 。
* Normal operating temperature range: -10...+40℃
* allowable working temperature range: -20...+70℃
* Influence of temperature on sensitivity: 0.02% r.o./10℃
* Influence of temperature on zero point: 0.02% r.o./10℃
* Recommended excitation voltage: 10V(DC/AC)
* Maximum excitation voltage: 15V(DC/AC)
* Input impedance: 385 10 Ω
* Output impedance: 350 3 Ω
* insulation impedance: > 5000MΩ
* safety overload: 150%R.C
* ultimate overload: 300%R.C
* Elastic element material: alloy steel
* Protection grade: IP67
* Cable length: 4m(0.25t…2t),6m(3t…10t)
