/// <summary>
/// initialises spectrometer
/// </summary>
internal void SpecInit(Form1 formObject)
{
Form1 form1 = formObject;
//Variable initialisation
int ret;
int pixelnumber = 2048;
int timing_mode = 1;
int input_mode = 2;
int inttime_base = 6300;
double[] coefficeint_a = new double[4];
coefficeint_a[0] = 768.568237181056;
coefficeint_a[1] = 0.152779981153354;
coefficeint_a[2] = -4.32708905592971E-06;
coefficeint_a[3] = -7.58441172603648E-10;
double[] coefficeint_b = new double[4];
coefficeint_b[0] = 6076.59925643135;
coefficeint_b[1] = 11.2680452636616;
coefficeint_b[2] = -0.00700388399164194;
coefficeint_b[3] = 3.42144657631367E-06;
ret = Spectrometer.bwtekTestUSB(timing_mode, pixelnumber, input_mode, 0, 0); //tests USB connection
int inttime_set = Convert.ToInt32(form1.inttime - inttime_base);
ret = Spectrometer.bwtekSetTimeUSB(inttime_set, 0); //Sets correct intergration time for spectrometer
if (ret < 0)
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show("Intergration time failed to set check USB connections and power supply for instabilities", "Program will close", buttons);
form1.Close();
}
}
/// <summary>
/// Starts Spectrometer
/// </summary>
/// /// <param name="Form1">The main form</param>
internal void SpecStart(Form1 formObject)
{
Form1 form1 = formObject;
bool retcode = Spectrometer.InitDevices();
if (retcode == false)
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show("Spectrometer Not Detected. Please connect Spectrometer and then restart", "Program will close", buttons);
form1.Close();
}
byte[] tmp_channel = new byte[32];
byte[] spec_channel = new byte[32];
int retcode1 = Spectrometer.bwtekSetupChannel(-1, tmp_channel);
if (retcode1 > 0)
{
int device_count = Spectrometer.GetDeviceCount();
for (int i = 0; i < 32; i++)
{
if (tmp_channel[i] < 32)
{
spec_channel[i] = tmp_channel[i];
}
}
}
}
/// <summary>
/// Takes Spectrum
/// </summary>
/// <param name="i">Spectrum number</param>
private static void SpecTake(int i)
{
//variable initialisation
int ret = 0;
SpecThread objThread1 = new SpecThread();
ret = Spectrometer.bwtekDSPDataReadUSB(1, 0, 0, 0, objThread1.DataArray, 0); //read data from spectrometer
if (ret < 0)
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show("Spectrum take failed, check USB connections and power supply for instabilities", "Program will close", buttons);
//this.Close();
}
SpecSave(objThread1.DataArray, i); //Saves Spectrum from data
}
/// <summary>
/// Sets the cooler temperature of the component specified to the input temperature
/// </summary>
/// <param name="DAChannel">Specification of channel, 0 for CCD, 1 for external</param>
/// <param name="SetTemp">Temperature value to set</param>
internal void SetCoolerTemp(int DAChannel, int SetTemp, Form1 formObject)
{
Form1 form1 = formObject;
//variable initialisation
double[] coef = new double[4];
double Rt_R25;
double T = SetTemp + 273.15;
double Rt, R25, Vset;
int DA_Set;
if (SetTemp < 0) //determines coefficient operations to peform depending on positive or negative values
{
coef[0] = -1.6165371 * Math.Pow(10, 1);
coef[1] = 5.9362293 * Math.Pow(10, 3);
coef[2] = -4.0817384 * Math.Pow(10, 5);
coef[3] = 2.2340382 * Math.Pow(10, 7);
}
else
{
coef[0] = -1.5702076 * Math.Pow(10, 1);
coef[1] = 5.7388897 * Math.Pow(10, 3);
coef[2] = -4.0470744 * Math.Pow(10, 5);
coef[3] = 2.6675244 * Math.Pow(10, 7);
}
//calculations to produce DA_Set using thermodynamics
Rt_R25 = coef[0] + coef[1] / T + coef[2] / Math.Pow(T, 2) + coef[3] / Math.Pow(T, 3);
Rt_R25 = Math.Exp(Rt_R25);
R25 = 10000; //R25=10K
Rt = Rt_R25 * R25;
Vset = (Rt / (Rt + R25) * 1.5);
DA_Set = (int)(Vset / 2.28 * 4096);
int ret = Spectrometer.bwtekSetAnalogOut(DAChannel, DA_Set, 0);
if (ret < 0)
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show("Spectrometer cooling failed to inialise, check USB connections and power supply for instabilities", "Program will close", buttons);
form1.Close();
}
}
/// <summary>
/// closes down the spectrometer
/// </summary>
internal void specclose()
{
Spectrometer.bwtekCloseUSB(0);
int y = Spectrometer.CloseDevices();
}
