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How do you map values in LabVIEW? Is there a best way or convention?
LabView: Pass value between while loopsLabView Licensing recommendation for cDAQ: NI9426 Open Connector Pulse and NI9213 Temperature AlarmHow does Labview save cluster data in a binary file and how do I read it out in MATLAB?Implementing filter design using LabVIEWCall a data from a database in a .ini fileLabview FPGA Simulation TimingUsing UDP LabVIEW to comunicate with UDP c++ socketHow to set two identical y-scales in the same graph in Labview?LabVIEW 3D sensor mapping
I have an angle in degrees, and need to map it to a voltage.
i.e. left: -360 degrees = 0V, straight: 0 degrees = 5V, right: 360 degrees = 10V.
How do you map values in LabVIEW?
I found scaling under the numeric pallet but they seem to be very specific (e.g. for a thermistor) with no generic block.
labview
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
add a comment |
I have an angle in degrees, and need to map it to a voltage.
i.e. left: -360 degrees = 0V, straight: 0 degrees = 5V, right: 360 degrees = 10V.
How do you map values in LabVIEW?
I found scaling under the numeric pallet but they seem to be very specific (e.g. for a thermistor) with no generic block.
labview
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
add a comment |
I have an angle in degrees, and need to map it to a voltage.
i.e. left: -360 degrees = 0V, straight: 0 degrees = 5V, right: 360 degrees = 10V.
How do you map values in LabVIEW?
I found scaling under the numeric pallet but they seem to be very specific (e.g. for a thermistor) with no generic block.
labview
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
I have an angle in degrees, and need to map it to a voltage.
i.e. left: -360 degrees = 0V, straight: 0 degrees = 5V, right: 360 degrees = 10V.
How do you map values in LabVIEW?
I found scaling under the numeric pallet but they seem to be very specific (e.g. for a thermistor) with no generic block.
labview
labview
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
asked Mar 25 at 17:33
Hugh WardHugh Ward
11 bronze badge
11 bronze badge
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
If the mapping you want is described by a mathematical formula, just implement that calculation using LabVIEW functions. In your case, assuming it's a linear relationship, the formula is voltage = (angle + 360) / 72 .
You could code this in LabVIEW with an Add function followed by a Divide function, or if you think it's clearer written out as a formula then you could use a Formula Node.
If you need to use this calculation in more than one place in your application, make it into a subVI.
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
add a comment |
Looks like you're trying to read a analog gauge value! Actually it's very simple.
- Build a lookup Table
- Perform Interpolation followed by thresholding.
Refer the VI Snippet (Just paste this image into your block diagram).
Sample Output:
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
oldest
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active
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active
oldest
votes
If the mapping you want is described by a mathematical formula, just implement that calculation using LabVIEW functions. In your case, assuming it's a linear relationship, the formula is voltage = (angle + 360) / 72 .
You could code this in LabVIEW with an Add function followed by a Divide function, or if you think it's clearer written out as a formula then you could use a Formula Node.
If you need to use this calculation in more than one place in your application, make it into a subVI.
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
add a comment |
If the mapping you want is described by a mathematical formula, just implement that calculation using LabVIEW functions. In your case, assuming it's a linear relationship, the formula is voltage = (angle + 360) / 72 .
You could code this in LabVIEW with an Add function followed by a Divide function, or if you think it's clearer written out as a formula then you could use a Formula Node.
If you need to use this calculation in more than one place in your application, make it into a subVI.
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
add a comment |
If the mapping you want is described by a mathematical formula, just implement that calculation using LabVIEW functions. In your case, assuming it's a linear relationship, the formula is voltage = (angle + 360) / 72 .
You could code this in LabVIEW with an Add function followed by a Divide function, or if you think it's clearer written out as a formula then you could use a Formula Node.
If you need to use this calculation in more than one place in your application, make it into a subVI.
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
If the mapping you want is described by a mathematical formula, just implement that calculation using LabVIEW functions. In your case, assuming it's a linear relationship, the formula is voltage = (angle + 360) / 72 .
You could code this in LabVIEW with an Add function followed by a Divide function, or if you think it's clearer written out as a formula then you could use a Formula Node.
If you need to use this calculation in more than one place in your application, make it into a subVI.
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
answered Mar 26 at 9:26
nekomaticnekomatic
4,4281 gold badge15 silver badges23 bronze badges
4,4281 gold badge15 silver badges23 bronze badges
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
add a comment |
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
Just out of curiosity! why are you dividing by 72?
– Achuthaperumal RK
Mar 26 at 9:46
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
The asker wants to map an input range of 720 degrees (-360 to +360) on to an output range of 10 V. 720 / 10 = 72.
– nekomatic
Mar 26 at 11:35
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
Oops! Didn’t notice that! Thanks for the clarification...
– Achuthaperumal RK
Mar 26 at 12:09
add a comment |
Looks like you're trying to read a analog gauge value! Actually it's very simple.
- Build a lookup Table
- Perform Interpolation followed by thresholding.
Refer the VI Snippet (Just paste this image into your block diagram).
Sample Output:
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
add a comment |
Looks like you're trying to read a analog gauge value! Actually it's very simple.
- Build a lookup Table
- Perform Interpolation followed by thresholding.
Refer the VI Snippet (Just paste this image into your block diagram).
Sample Output:
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
add a comment |
Looks like you're trying to read a analog gauge value! Actually it's very simple.
- Build a lookup Table
- Perform Interpolation followed by thresholding.
Refer the VI Snippet (Just paste this image into your block diagram).
Sample Output:
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
Looks like you're trying to read a analog gauge value! Actually it's very simple.
- Build a lookup Table
- Perform Interpolation followed by thresholding.
Refer the VI Snippet (Just paste this image into your block diagram).
Sample Output:
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
answered Mar 26 at 5:38
Achuthaperumal RKAchuthaperumal RK
799 bronze badges
799 bronze badges
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
add a comment |
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
1
1
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
This is a good explanation of how to implement a calibration curve as a series of linear segments, but it's not necessary for the OP's question which just needs a simple linear function.
– nekomatic
Mar 26 at 9:28
add a comment |
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