How to solve the ADS1230 temperature? Is it related to offset calibration?
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How to solve the ADS1230 temperature? Is it related to offset calibration?The 16 bits are taken as the two bits change with temperature. Is it related to offset calibration? Calibrated before AD starts? Or calibrated after AD startup? I used the original scale hardware to include the 1230 and the sensor and power 3.3V circuit. The original connected MCU is disconnected, and only three control lines and ground lines are connected. When the temperature rises, the number of readings increases. It is basically unchanged in a short time (about 1-2 hours) at normal temperature. Is this situation a warm performance? How to solve? The original scale has been very stable.
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How to solve the ADS1230 temperature? Is it related to offset calibration?The 16 bits are taken as the two bits change with temperature. Is it related to offset calibration? Calibrated before AD starts? Or calibrated after AD startup? I used the original scale hardware to include the 1230 and the sensor and power 3.3V circuit. The original connected MCU is disconnected, and only three control lines and ground lines are connected. When the temperature rises, the number of readings increases. It is basically unchanged in a short time (about 1-2 hours) at normal temperature. Is this situation a warm performance? How to solve? The original scale has been very stable.
I used the ADS1230 to do the bridge pressure signal acquisition, and I also encountered similar problems. :) :) You can add corrections that must be corrected for each use, each time you correct the zero point, manual correction and zero offset correction. A DC offset can be added to the signal input of the circuit, but debugging is a bit cumbersome; it is also possible to add an offset value to the result of the AD conversion, which can be done by software. How to correct, this is my processing conversion function Void Convert_Data(void) { Static uchar conter=0; Long Result=0, Temp_Result=0; Result=ReadAD(); // if(Result>524287)Temp_Result=1048576-Result; // else Temp_Result=Result; Temp_Result=Result; Power[0]=Temp_Result/100000+0x30; Power[1]=Temp_Result%100000/10000+0x30; Power[2]=Temp_Result%10000/1000+0x30; Power[3]=Temp_Result%1000/100+0x30; Power[4]=Temp_Result%100/10+0x30; Power[5]=Temp_Result%10+0x30; //Temp_Result=0; }