oUVTronHM Object

The Hamamatsu UVTron Flame Detector can detect a cigarette lighter flame from 5 meters.  This detector is useful for finding combustion sources, candles and flames.  It operates in the spectral range of 185 to 160 nm.

The oUVTronHM Object handles all the necessary I/O timing requirements to read the UV photon level from a Hamamatsu UVTron Flame Detector (UVTron).  It is expecting that a Hamamatsu UVTron Flame Detector is attached to the I/O line specified by the IOLine property and will read the photon count from the UVTron.

The oUVTronHM Object monitors the I/O line specified by IOLine property.  As long as the Operate property is 1, the oUVTronHM Object will continually update its Level property with the UV photon reading.  This photon count is then converted into a value and stored in the Level property.  The Level property is updated with the UV photon reading each time a new pulse is received from the UVTron.

When photons are being received, the Level property is set to a value from 1 to 255 which indicates the level of photon activity.  As photon activity increases, the Level property increases. When the UVTron is not receiving UV photons, the Level property will be set to 0.

The Timer property is an instance of the oCycleTimeL object which is created when the oUVTronHM Object is.  The oUVTronHM Object uses the timer object to read the signal generated by the UVTron.  Modifying any of the properties of the oCycleTimeL instance will affect the oUVTronHM Object's operation.  See the oCycleTimeL Help for more detail on how the oUVTronHM reads the UVTron's signal.

The following table lists the properties of the oUVTronHM Object:

Property	Description
Level	A value that indicates the Ultra Violet Photon level. Object Class:  oByte   Value Range:  0 - 255 Data Type:  Numeric   Default Value:  0 Level Description 0 The UVTron is indicating a that UV Photon are not being detected. 1 - 254 The UVTron is indicating a medium UV Photon reading. 255 The UVTron is indicating a strong UV Photon reading.
Detected	A value that indicates that Ultra Violet Photons have been detected. Object Class:  oLogic   Value Range:  0 - 1 Data Type:  Numeric   Default Value:  0 Operate Constant Description 0 cvFalse Ultra Violet Photons have not been detected. 1 cvTrue Ultra Violet Photons have been detected.
IOLine	A value that specifies which I/O Line is connected to the UVTron. Object Class:  oIOLine   Value Range:  0 - 31 Data Type:  Numeric   Default Value:  0 Some I/O Lines have special purposes.  Be sure to see oIOLine help file for details.
Operate	A value that selects whether or not the UVTron is being read. Object Class:  oOperate   Value Range:  0 - 1 Data Type:  Numeric   Default Value:  0 Operate Constant Description 0 cvOff The UVTron is not being read. 1 cvOn The UVTron is being read.
Timer	The I/O function object used to read the UVTron. Object Class:  oCycleTimeL   Value Range:  0 - 255 Data Type:  Numeric   Default Value:  0
Address	Returns a pointer to the address of the oCounter Object instance. Object Class:  oAddress   Value Range:  0 - 127 Data Type: Pointer (Read Only)   Default Value:  Address of Object

'This program reads the intensity 'of a flame with an oUVTronHM 'Object and outputs the value 'on I/O lines 8 - 15. Dim A As New oUVTronHM Dim B As New oDIO8 Dim C As New oDIO1 Sub Main() A.IOLine = 1 A.Operate = cvTrue B.IOGroup = 1 B.Direction = cvOutput C.IOLine = 23 C.Direction = cvOutput Do B.State = A.Level C.State = A.Detected Loop End Sub

Bugs: No known bugs.