The electronics are completely housed in the compact and durable receiver unit (SAM MotionAnalyzer). The receiver unit is mounted onto a small tripod. The measuring principle is based on measuring the travel time, which the signals of the three senders on the sensor triplet need to reach the microphones in the measuring unit. These time periods are then used for calculation of the exact positions in space which makes it possible to derive the movement data.

The radiation angle of the senders is 180° with a maximum measuring distance of 1.4 meters. The resolution of the positional signal is about 1/10 mm. There is no problem using the system outdoors if kept away from moisture or strong winds.

Technical data:

• 4 sensor channels
• Real-time analysis via PC USB interface
• Measuring frequency 70 Hz
• Measuring distance up to 1.4 meters
• Size: 240x255x50 mm
• Weight: 750 g
• Ultrasound marker 10 x 8 mm

Additionally you need a Windows PC and printer. PC requirements:

• Pentium IV with 2 GHz or better
• 1 GB RAM (2 GB RAM recommended)
• CD drive to install the software
• 100 MB free storage space
• USB interface
• Internet access for software updates recommended
• Windows XP / Windows Vista / Windows 7