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---
license: cc-by-nc-4.0
---
# Main protocol

Performer: Hamza
Purpose / Hypothesis: To see needle tip effect on signal recorded, needle tip go through zucchini when it is on the air we have only needle shaft effect on the signal

Needle size: 22G
Needle tip: Chiba
Punctured Material: Zucchini
Phantom setup: Zucchini on the our foam holder

 
Extended:

Zucchini was 2.3-2.95 cm high. \
Zucchini bottom was 5.6 cm high

Filename meaning: \
zucchini_Speed-10_22g_chiba_stethescope_2025-09-24_12.49.17

material_speed-of-dobot_needle-type_sensor-type_timestamp

Sensor places on channel 0. On channel 1 microphone for sync sound detecting.

# Needle tracking protocol

Marker Size: 4 cm \
Marker Border size: 0.9 cm

Needle offset: 10.6 cm \
Z-offset: 2.5 cm