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Create awareness of your surroundings. Ultrasonically senses distances of objects, persons,
walls from 0.152 to 6.45 m (0.500 to 21.2 ft.). Is invisible to the audience.
Completely silent to the human ear, hence it is suitable for sound installations.
Application examples
- Use for distance measurement relative to a wall or presence detection of objects and persons
(it cannot detect the number of people present).
- Combine with a
TapTiled floor,
some MoveOn
and/or ReachClose
sensors and make sure every move of your visitor has an effect.
Perhaps the TouchStripOn
is useful for additional coverage on walls.
The Flash +
SeeLaser
combo allows you to implement break-beams that could indicate borders or thresholds.
Technical specifications
| Product |
Advance-645 sensor |
| Version |
1.1 (May 2009) |
| Sensing parameter |
distance, proximity |
| Sensing method |
ultrasonic (42 KHz) |
| Active volume |
36° - 50° cone (dependent on distance) |
| Range |
0.152 to 6.45 m (0.500 to 21.2 ft.) |
| Resolution |
2.5 cm (1.0 inch) |
| Update rate |
20 Hz |
| Calibration |
| m |
ft |
Voltage (use 5 V power supply) |
7-bit MIDI value (use 'no processing' editor preset) |
| 0.152 |
0.500 |
0 |
0 |
| 6.45 |
21.2 |
2.54 |
65 |
| Operating temperature |
-40° to 85° C (-40° to 185° F) |
| Power supply |
4.75 to 5.25 V DC, 2 mA |
| Sensor dimensions |
20 x 22 x 16.4 mm (0.79 x 0.87 x 0.65 inch) |
| Weight |
4.4 g (0.16 oz), incl. cable |
| Cable |
5.0 m (16 ft), shielded, red wire = power, uninsulated wire = ground, black wire = sensor output |
| Connector |
male plug with a row of 3 pins spaced 2.54 mm (0.100 inch) |
| Application notes |
- upon power-up, the sensor performs a distance calibration, so if anything is closer than 35 cm (14 inch) it can cause close objects to be ignored
- multiple Advance-645 sensors can be placed adjacently where the spacing is determined by the maximum distance to be measured at which distance the ultrasound emission cones should not overlap
- any indirect echoes of the ultrasonic pulse (eg. from the sidewalls in a narrow corridor) may generate incorrect sensor output values
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