Trigger Sensor
Sensor2
None
Delay ms
500.0
000.0
Bulb sec
01
00
Prefocus
No
No
Device Settings
Parameter
Sensor1
Sensor2
Trigger Type
Low
Low
Trigger Value
400
000
Power
On
On
Sensor Settings
Projectile Sensor
The projectile sensor is used with the projectile menu described above to capture images of
projectiles in flight (and objects exploding) at a specific distance from the sensor based on the
measured speed of the projectile.
The two cables from the projectile sensor are plugged into the Sensor 1 and Sensor 2 ports. Sensor
1 would be the first sensor in the path of the projectile and Sensor 2 would be the second senor as
written on the sensor printed circuit board. The flash(s) are connected to the Camera/Flash 1 and/or
the Camera/Flash 2 ports.
When the unit is in photo mode the code loops watching for the first sensor to be triggered then waits
for the second sensor to be triggered. The time between the two sensor events is used to determine
the speed of the projectile. This speed is then used to determine the time delay before triggering
the flash. When the delay time is reached, device 1 and device 2 are triggered for 1 second. After
triggering the devices, and displaying the projectile speed, the unit displays a message saying “Ready
for projectile!” and waits for another trigger event on the first sensor. If more than one second passes
between detecting the first sensor and the second sensor, without the second sensor being triggered,
a message will be displayed that says “Sensor2 did not trigger” and then after 5 seconds, the unit will
return to waiting for a projectile.
