VT TSS MAHRS System – Available for rental, hire and ex-rental purchase from Ashtead Technology.
MAHRS is a master heading reference instrument employing the characteristics of a dynamically tuned Gyro (DTG), as well as the effect of gravity and the earth's rotation to produce a true north reference. The DTG provides exceptional heading performance on almost any vehicle to a level unmatched by even the latest fibre optic designs. This is combined with TSS Dynamic Motion Sensor (DMAS) to provide very accurate heave, roll and pitch.
MAHRS features a unique new algorithm that closely couples the motion sensor and gyrocompasses. Deck plane correction enables real-time correction of the heading solution during vessel dynamics.
|Settle point error||±0.1° RMS secant latitude|
|Static error||±0.05° RMS secant latitude|
|Dynamic Accuracy||±0.1° RMS secant latitude|
|Settle point repeatability||±0.1° RMS secant latitude|
|Follow-up speed||200° / second|
|Settling time||<45 minutes within 0.7°|
|Gimbal limits||45° pitch and roll|
|Digital Outputs||2 serial ports, RS232 or RS422, baud rates 1200, 2400, 4800, 9600, 19k2, 38k4|
|Data output rate||Digital - up to 200 Hz|
|Analogue - 500 Hz (heave, roll and pitch) - optional|
|Ambient operating temperature||-10°C to +55°C|
|Power requirement||24V DC, 5A at switch on, 2.5A operating|
|Compensation||Latitude: 80N to 80S|
|Speed: 0 - 90 knots|
|Pitch and roll||Resolution: 0.01°|
|Pitch and Roll accuracy||0.03° (for a 5° amplitude)|
|0.05° (for a 45° amplitude)|
|Heave||5cm or 5% whichever is greater (period 0 to 20s)|
|242 x 430 x 232 mm||9.5 x 16.9" x 9.1""||20 kg||44 lbs|