What I intend to do:
Estimate Accuracy of a Bullet Hit from the Bull's Eye:
Use some light sensing diodes like BPW34 (or you suggest) spanning a feet vertically and horizontally or so with laser light incident on them from above and side respectively. When a bullet is fired between the laser and the diodes it will interrupt the incident light on any one of the horizontal and vertical diodes at speed of approximately 2700 km/hour (average bullet speed). This will cause a change of voltage/current values of the diodes that shall be registered, 7.2 μs response time depending upon surface area of BPW34 diode.
Problem Areas:
Estimate Accuracy of a Bullet Hit from the Bull's Eye:
Use some light sensing diodes like BPW34 (or you suggest) spanning a feet vertically and horizontally or so with laser light incident on them from above and side respectively. When a bullet is fired between the laser and the diodes it will interrupt the incident light on any one of the horizontal and vertical diodes at speed of approximately 2700 km/hour (average bullet speed). This will cause a change of voltage/current values of the diodes that shall be registered, 7.2 μs response time depending upon surface area of BPW34 diode.
Problem Areas:
- Suggest a Light Sensing Diode whose response time of light interrupt can produce a noticeable change in voltage/current at above speed.
- Which amplification circuit (Op-amp ) is required which can amplify the change in incident light level.
- What comparator circuit to be used which can record the change and register it for processing.
Last but not the least: I am a starter at electrical circuits.