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SCXI-1540 Resolution and Accuracy

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Filename: 202288.llb
Requirements: View

This program calculates the resolution and maximum error for the SCXI-1540 in units of mils, degrees, and minutes of arc for linear variable differential transformers (LVDT), rotary variable differential transformers (RVDT), and resolver measurements, respectively.

LVDT:
To calculate the resolution and the maximum error for an LVDT measurement, select the LVDT tab at the top. The Resolution (Bit Width) box refers to the resolution of the E Series DAQ device. Most E Series DAQ devices have either 12 or 16 bits of resolution. Refer to the E Series DAQ device documentation for resolution specifications. The Maximum and Minimum Voltage boxes refer to the range of voltages for which the E Series DAQ device is configured. The Total System Accuracy box value can be obtained from the Accuracy Calculator available at ni.com/accuracy. LVDT sensitivity refers to the sensitivity of the LVDT.

RVDT:
To calculate the resolution and the maximum error for an RVDT measurement, select the RVDT tab at the top. The Resolution (Bit Width) box refers to the resolution of the E Series DAQ device. Most E Series DAQ devices have either 12 or 16 bits of resolution. Refer to the E Series DAQ device documentation for resolution specifications. The Maximum and Minimum Voltage boxes refer to the range of voltages for which the E Series DAQ device is configured. The Total System Accuracy box value can be obtained from the Accuracy Calculator available at ni.com/accuracy. RVDT sensitivity refers to the sensitivity of the RVDT.

Resolver:
To calculate the resolution and the maximum error for a resolver measurement, select the Resolver tab at the top. The Resolution (Bit Width) box refers to the resolution of the E Series DAQ device. Most E Series DAQ devices have either 12 or 16 bits of resolution. Refer to the E Series DAQ device documentation for resolution specifications. The Maximum and Minimum Voltage boxes refer to the range of voltages for which the E Series DAQ device is configured. The Total System Accuracy box value can be obtained from the Accuracy Calculator available at ni.com/accuracy.

Related Links:
Support Utilities: Accuracy Calculator

Requirements


Filename: 202288.llb

Software Requirements


Application Software: LabVIEW Full Development System 6.1
Language(s): LabVIEW

Hardware Requirements


Hardware Group: SCXI
Hardware Model: SCXI-1540
Driver: Traditional NI-DAQ (Legacy) 6.9.3

 
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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).