/// <summary>
/// Polling a voltage data.
/// </summary>
/// <returns>System.Double.</returns>
/// <exception cref="InvalidOperationException">
/// AI_ReadChannel32 Fail, error: " + err
/// or
/// AI_VoltScale32 Fail, error: " + err
/// </exception>
public double VoltagePolling()
{
double volt;
uint value;
short err = DASK.AI_ReadChannel32(GetHandle(), config_para.ai_select_channel, config_para.ai_chnl_range, out value);
if (err < 0)
{
throw new InvalidOperationException("AI_ReadChannel32 Fail, error: " + err);
}
err = DASK.AI_VoltScale32(GetHandle(), config_para.ai_chnl_range, (int)value, out volt);
if (err < 0)
{
throw new InvalidOperationException("AI_VoltScale32 Fail, error: " + err);
}
return(volt);
}
