DAQmxCreateTEDSAIStrainGageChan

int32 DAQmxCreateTEDSAIStrainGageChan (TaskHandle taskHandle, const char physicalChannel[], const char nameToAssignToChannel[], float64 minVal, float64 maxVal, int32 units, int32 voltageExcitSource, float64 voltageExcitVal, float64 initialBridgeVoltage, float64 leadWireResistance, const char customScaleName[]);

Purpose

Creates channel(s) to measure strain and adds the channel(s) to the task you specify with taskHandle. You must configure the physical channel(s) with TEDS information to use this function.

Parameters

Input
Name	Type	Description
taskHandle	TaskHandle	The task used in this function.
physicalChannel	const char []	The names of the physical channels to use to create virtual channels. You can specify a list or range of physical channels.
nameToAssignToChannel	const char []	The name(s) to assign to the created virtual channel(s). If you do not specify a name, NI-DAQmx uses the physical channel name as the virtual channel name. If you specify your own names for nameToAssignToChannel, you must use the names when you refer to these channels in other NI-DAQmx functions. If you create multiple virtual channels with one call to this function, you can specify a list of names separated by commas. If you provide fewer names than the number of virtual channels you create, NI-DAQmx automatically assigns names to the virtual channels.
minVal	float64	The minimum value, in units, that you expect to measure.
maxVal	float64	The maximum value, in units, that you expect to measure.
units	int32	The units to use to return the measurement. Name Description DAQmx_Val_Strain Strain DAQmx_Val_FromCustomScale Units specified by a custom scale. Use customScaleName to specify a custom scale.
voltageExcitSource	int32	The source of excitation. Value Description DAQmx_Val_Internal Use the built-in excitation source of the device. You must use voltageExcitVal to specify the amount of excitation. DAQmx_Val_External Use an excitation source other than the built-in excitation source of the device. You must use voltageExcitVal to specify the amount of excitation. DAQmx_Val_None Supply no excitation to the channel. You cannot use this value if the sensor requires excitation.
voltageExcitVal	float64	The amount of excitation, in volts, that the sensor requires.
initialBridgeVoltage	float64	The bridge output voltage in the unloaded condition. NI-DAQmx subtracts this value from any measurements before applying scaling equations. Perform a voltage measurement on the bridge with no strain applied to determine this value.
leadWireResistance	float64	The amount, in ohms, of resistance in the lead wires. Ideally, this value is the same for all leads.
customScaleName	const char []	The name of a custom scale to apply to the channel. To use this parameter, you must set units to DAQmx_Val_FromCustomScale. If you do not set units to DAQmx_Val_FromCustomScale, you must set customScaleName to NULL.

Return Value

Name	Type	Description
status	int32	The error code returned by the function in the event of an error or warning. A value of 0 indicates success. A positive value indicates a warning. A negative value indicates an error.