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resources:eval:user-guides:circuits-from-the-lab:cn0368 [30 Mar 2015 20:42] – [Step by Step Instruction for Calibrating the System] Neil Wilsonresources:eval:user-guides:circuits-from-the-lab:cn0368 [30 Mar 2015 21:22] – [Multiple Temperature Calibration] Neil Wilson
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 The Single Temperature Calibration method allows the user to calculate VSIN_Offset and VCOS_Offset before calculating the magnetic field angle.  This eliminates any error sources associated with a dynamic calibration procedure, but requires extra steps and time. The Single Temperature Calibration method allows the user to calculate VSIN_Offset and VCOS_Offset before calculating the magnetic field angle.  This eliminates any error sources associated with a dynamic calibration procedure, but requires extra steps and time.
   - Select '**//Single Temperature Calibration//**' from the drop down menu.   - Select '**//Single Temperature Calibration//**' from the drop down menu.
-  - +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:single_temperature_calibration.png?600|}}
   - A prompt will appear instructing the user to rotate the magnetic stimulus through 360 degrees.     - A prompt will appear instructing the user to rotate the magnetic stimulus through 360 degrees.  
     - In this time the software is actively calculating VSIN_Offset and VCOS_Offset.     - In this time the software is actively calculating VSIN_Offset and VCOS_Offset.
   - Press '**//End Calibration//**' when finished.   - Press '**//End Calibration//**' when finished.
 +    - The software will display the magnetic field angle, VSIN_Offset, and VCOS_Offset.
   - Press '**//Sample Data//**' to actively calculate the magnetic field angle using the offsets calculated during the Single Temperature Calibration.   - Press '**//Sample Data//**' to actively calculate the magnetic field angle using the offsets calculated during the Single Temperature Calibration.
- +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:sample_data.png?600|}} 
 +  - Press '**//Click to Stop//**' when finished.
 ==== Multiple Temperature Calibration ==== ==== Multiple Temperature Calibration ====
 +The Multiple Temperature Calibration procedure is a method of compensating for temperature effects experienced by the amplifier and ADC.  The temperature coefficients and offsets are calculated to provide a more accurate magnetic field angle and system response. 
 +  - Select //**Multiple Temperature Calibration**// from the drop down menu. 
 +  - Place the hardware in a temperature controlled environment at the desired T1. 
 +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:multiple_temperature_calibration_1.png?600|}} 
 +  - Press //**Ok**//. 
 +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:multiple_temperature_calibration_2.png?600|}} 
 +  - Rotate the stimulus through 360 degrees while VSIN_Offset_T1 and VCOS_Offset_T1 are calculated. 
 +  - Press //**Ok**//. 
 +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:multiple_temperature_calibration_3.png?600|}} 
 +  - Place the hardware in a temperature controlled environment at the desired T2. 
 +  - Press //**Ok**//. 
 +  - {{:resources:eval:user-guides:circuits-from-the-lab:cn0368:multiple_temperature_calibration_4.png?600|}} 
 +  - Rotate the stimulus through 360 degrees while VSIN_Offset_T2 and VCOS_Offset_T2 are calculated. 
 +  - Press //**Ok**//. 
 +  - Press //**Sample Data**// to observe the magnetic field angle results corrected for temperature and offset effects.
 ==== Dynamic Calibration ==== ==== Dynamic Calibration ====
 The Dynamic Calibration method actively calculates VSIN_Offset and VCOS_Offset as the magnetic stimulus rotates through 360 degrees.  The software then subtracts these offsets in real time.  This method is simpler than the Single Temperature Calibration and Multiple Temperature Calibration and can be implemented faster, with more ease. The Dynamic Calibration method actively calculates VSIN_Offset and VCOS_Offset as the magnetic stimulus rotates through 360 degrees.  The software then subtracts these offsets in real time.  This method is simpler than the Single Temperature Calibration and Multiple Temperature Calibration and can be implemented faster, with more ease.
resources/eval/user-guides/circuits-from-the-lab/cn0368.txt · Last modified: 29 Jul 2021 07:52 by Harvey John De Chavez

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