A very useful tool for checking and calibrating all kinds of multi-channel AE systems. It provides a means to electrically generate artificial signals which can be used to qualify the measurement chain (preamps, channels,...). Providing a large variety of settings it allows precise and quick verification of system performance.

Operation Modes:

• AE-signals
• Burst of sine-waves
• Continuous sine-waves

• Manual (Single shot switch)
• Internal (Repetition rate adjustable)
• External (BNC-socket, low-to-high transition starts a signal)
• Trigger Output (triggers second or third ACAL3)
• Trigger Delay (1 to 9900µs for defined delta-t-generation)

Flexible Parameter Settings:

• Amplitude, range: 20-149 dB
• Trigger-delay, range: 1-9900 µs
• Burst-width, range: 10-1000 µs
• Frequency, range: 16-900 kHz
• Rise-time, range: 10-1000 µs
• Decay-time, range: 10-10000 µs
• Repetition period, range: 1-1000 ms
• Attenuator ratio: 119dB
• Attenuator impedance: 50 Ohm
• Signal-to-Noise-Ratio: > 63dB
  (at 99dB, a threshold of 36dB suppresses false signals)