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YEI 3-Space Sensor™ USB / RS232

YEI 3-Space Sensor

Purchase

	3-Space Sensor: USB/RS232 (Handheld Case)	Part: TSS-USB	$160.00	Qty:
	3-Space Sensor: USB/RS232 (Strap-down Case)	Part: TSS-USB-S	$160.00	Qty:

Product Overview

The YEI 3-Space Sensor™ USB / RS232 is a miniature, high-precision, high-reliability, Attitude and Heading Reference System (AHRS) / Inertial Measurement Unit (IMU) offering USB 2.0 and RS232 communication interfaces in a single low-cost end-use-ready unit. The Attitude and Heading Reference System (AHRS) / Inertial Measurement Unit (IMU) uses triaxial gyroscope, accelerometer, and compass sensors in conjunction with advanced processing and on-board quaternion-based Kalman filtering algorithms to determine orientation relative to an absolute reference in real-time.

Orientation can be returned in absolute terms or relative to a designated reference orientation. The proprietary multi-reference vector mode increases accuracy and greatly reduces and compensates for sensor error. The YEI 3-Space Sensor USB system also utilizes a dynamic sensor confidence algorithm that ensures optimal accuracy and precision across a wide range of operating conditions.

The YEI 3-Space Sensor USB unit features are accessible via a well-documented open communication protocol that allows access to all available sensor data and configuration parameters using either USB 2.0 or RS232. Versatile commands allow access to raw sensor data, normalized sensor data, and filtered absolute and relative orientation outputs in multiple formats including: quaternion, Euler angles (pitch/roll/yaw), rotation matrix, axis angle, two vector(forward/up).

Areas of Application

Robotics
Motion capture
Positioning and stabilization
Personnel/pedestrian navigation and tracking
Unmanned air/land/water vehicle navigation
Education and performing arts
Healthcare monitoring
Gaming and motion control
Accessibility interfaces
Virtual reality and immersive simulation

Hardware Overview

Key Features

The YEI 3-Space Sensor USB/RS232 has many features that allow it to be a flexible all-in-one solution for your orientation sensing needs. Below are some of the key features:

Small self-contained high-performance wireless AHRS at 35mm x 50mm x 15mm and 17 grams
Fast sensor update and filter rate allow use in real-time applications, including stabilization, virtual reality, realtime immersive simulation, and robotics
Highly customizable orientation sensing with options such as tunable filtering, oversampling, and orientation error correction
Advanced integrated Kalman filtering allows sensor to automatically reduce the effects of sensor noise and sensor error
Robust open protocol allows commands to be sent in human readable form, or more quickly in machine readable form
Orientation output format available in absolute or relative terms in multiple formats ( quaternion, rotation matrix, axis angle, two-vector )
Absolute or custom reference axes
Access to raw sensor data
Flexible communication options: USB 2.0 or RS232 asynchronous serial
USB communication via virtual COM port
USB joystick/mouse emulation modes ease integration with existing applications
Upgradeable firmware
RGB status LED, two programmable input buttons
Miniature barrel jack power input option
Miniature TRS connector for RS232 and power input
Available in either hand-held or strap-down packaging

Specifications

General

Part number	TSS-USB (Handheld Sensor Unit) TSS-USB-S (Strapdown Sensor Unit)
Dimensions	35mm x 50mm x 15mm (1.38 x 1.97 x 0.59 in.)
Weight	17 grams ( 0.60 oz )
Supply voltage	+5v USB, +3.3v ~ +6.0v external jack
Communication interfaces	USB 2.0, RS232 Asynchronous Serial
Filter update rate	up to 200Hz with full AHRS functionality up to 1000Hz in IMU mode
Orientation output	absolute & relative quaternion, Euler angles, axis angle, rotation matrix, two vector
Other output	raw sensor data, normalized sensor data, temperature
Shock survivability	5000g
Temperature range	-40C ~ 85C ( -40F ~ 185F )

Sensor

Orientation range	360º about all axes
Orientation accuracy	±2º for dynamic conditions & all orientations
Orientation resolution	<0.08º
Orientation repeatability	0.085º for all orientations
Accelerometer scale	±2g / ±4g / ±8g selectable
Accelerometer resolution	14 bit
Accelerometer noise density	99µg/√Hz
Accelerometer sensitivity	0.00024g/digit for ±2g range 0.00048g/digit for ±4g range 0.00096g/digit for ±8g range
Accelerometer temperature sensitivity	±0.008%/°C
Gyro scale	±250/±500/±2000 º/sec selectable
Gyro resolution	16 bit
Gyro noise density	0.03º/sec/√Hz
Gyro bias stability @ 25°C	11º/hr average for all axes
Gyro sensitivity	0.00875º/sec/digit for ±250º/sec 0.01750º/sec/digit for ±500º/sec 0.070º/sec/digit for ±2000º/sec
Gyro non-linearity	0.2% full-scale
Gyro temperature sensitivity	±0.016%/°C
Compass scale	±1.3 Ga default. Up to ±8.1 Ga available
Compass resolution	12 bit
Compass sensitivity	5 mGa/digit
Compass non-linearity	0.1% full-scale

Dimensions

Downloads and Documentation

Documentation

Technical Brief: 3-Space Sensor USB, 1.0.3, updated 14 Jan 2012, Includes product data and specifications

3-Space Sensor Quick Start Manual USB, 1.1r6, updated 28 Nov 2011

3-Space Sensor User's Manual USB, 1.1r7, updated 5 Dec 2011

Firmware

3-Space Firmware Update - USB 2.0, 1.1r11, updated 11 Jan 2012 (Note: only install this on your sensor if it says USB v2.0 on the back)

3-Space Firmware Update - USB 1.0, 1.1r11, updated 11 Jan 2012 (Note: only install this on your sensor if it says USB v1.0 on the back)

Change Log

Informational Resources

Links

http://en.wikipedia.org/wiki/USB#USB_2.0 - Wikipedia entry describing USB 2.0 communication

http://en.wikipedia.org/wiki/Rs232 - Wikipedia entry describing RS232 serial communication

http://en.wikipedia.org/wiki/Asynchronous_serial_communication - Wikipedia entry describing asynchronous serial communication

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