MBS 403 Muzzle Blast Sensor

Description

The MBS 403 muzzle blast sensor acoustically detects projectile exit from the muzzle blast and pressure wave. A microphone, amplifier and trigger stage convert the event into a steep digital output pulse for downstream measuring instruments.

The sensor can be used for rate-of-fire measurement, as a start signal for velocity, time-of-flight and fuze-function-time measurements, and as a stop signal for gas-pressure or barrel-time measurements. Sensitivity and positioning are adjusted to the calibre, muzzle pressure and measurement task.

Technical data

Parameter	Value
Operating principle	acoustic
Operating voltage	+12 to +15 V DC
Current consumption	approx. 45 mA
Output pulse	+10 V digital; −10 V optional
Rise rate	> 50 V/µs
Housing	aluminium, splash-proof, IP65
Operating temperature	−10 to +60 °C
Storage temperature	−20 to +75 °C
Humidity	85%, non-condensing
Dimensions L × W × H	180 × 80 × 50 mm
Weight	approx. 0.8 kg
Tripod thread	¼ in

Applications

• Rate-of-fire measurement
• Start pulse for velocity, time-of-flight and fuze-function-time measurements
• Stop signal for gas-pressure and barrel-time measurements
• Triggering short-time instruments and other ballistic measurement chains