Thermal accelerometers
- Technologie
- Beschleunigungsmesser und Neigungssensoren
- Partner
- Memsic
Thermische Beschleunigungsmesser verwenden einen proprietären, patentierten Ansatz ohne bewegliche Teile. Sie sind hochzuverlässig, leicht zu fertigen und äußerst kostengünstig. Die Komponenten integrieren führende Sensortechnologie mit Mischsignalelektronik in ein Ein-Chip-Design unter Verwendung des CMOS-IC-Prozesses.
Die Schlüsseltechnologie ist die Verwendung eines erhitzten Gases als ‘Proof Mass’, was eine vernachlässigbare Empfindlichkeit gegenüber hochfrequenten Vibrationen (z. B. Motorvibrationen in Automobilanwendungen), hohe Toleranz gegenüber Stressänderungen und einen sehr niedrigen Zero-G-Offset ermöglicht.
Thermische MEMS-Beschleunigungsmesser werden in vielen bewährten Anwendungen in Konsumgütern, industriellen und automobilen Sicherheitsprodukten eingesetzt.
Eigenschaften
- No effect with high-frequency vibrations
- High tolerance to stress changes after SMT mounting
- Very low zero-g offset
- High resistance to mechanical shock
- Monolithic 3-axis structure available
- Negligible temperature hysteresis
- Unique programmable anti-vibration filter and angle threshold for tip-over application
Verfügbare Modellvariationen
Alle verfügbaren Varianten und ein Vergleich ihrer Spezifikationen
| Model | Number of axis | Full scale ranges | Package | Signal output | Typical application field |
|---|---|---|---|---|---|
MXC4005XC | 3 | ±2g,±4g, ±8g (selectable) | Smallest Wafer Level Package (WLP) Footprint 1.18×1.70×0.85mm | I2C | Consumer (cellular, tablet, pedometer) |
MXC6655XA | 3 | ±2g,±4g, ±8g (selectable) | 12-pin LGA 2 × 2 ×1 mm Package | I2C | Consumer (cellular, tablet, pedometer) |
MXC6255XC | 2 | ±2g | Chip Scale Package (1.18×1.705×0.955mm) | I2C | Consumer (cellular, tablet, pedometer) |
MXC6255XU | 2 | ±2g | 6-pin 3 x 3 mm LCC package | I2C | Consumer (cell phones, digital cameras) Household (iron, fan heaters) |
MXD2020xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | PWM | Industrial (elevator / gas line) Automotive ( Vehicle Security/Vehicle stability control / Headlight Angle Control / Tilt Sensing / Fatigue sensing) |
MXR2999xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Industrial Automotive ( Vehicle Security/Active Suspension/ABS Headlight Angle Control) |
MXR7202ML | 2 | ±2g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | GPS Electronic compass tilt correction Consumer (LCD projectors, blood pressure Monitor, digital cameras) |
MXA2500xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Absolute Analog Output | Automotive – Vehicle Security/Active Suspension/ABS Headlight Angle Control/Tilt Sensing White Goods – Spin/Vibration Control |
MXC6244AU | 2 | ±8g | 6-pin 3 x 3 x 1 mm LCC package | I2C (with programmable anti-vibration filter and angle threshold) | Inclination Sensing in High Vibration Environments Motorcycle Fall-Down Detection Off-Road Vehicle Roll Detection |
MXD624xAU | 2 | Tip-over sensor | 6-pin 3 x 3 x 1 mm LCC package | Digital output according to threshold detection | Motorcycle Fall-Down Detection Off-Road Vehicles Jetski, watercraft Other Tip-Over Detection (Space heaters, Irons, etc) |
MXC624xEU | 2 | ±30 Degrees of Inclination | 3 x 3 x 1mm Ceramic LCC-6 package | I2C (with programmable anti-vibration filter) | Antenna pitch and roll monitoring / Inclination sensing in high vibration environments |
MXC6245XU | 2 | ±2g | 6-pin 3 x 3mm Ceramic LCC package | I2C (with built-in orientation detection) | Car Navigation System Projector Auto Keystone Correction |
MXP7205VF | 2 | ±5g | LCC-8 5 x 5 x 2 mm | SPI | Automotive Vehicle Stability Control Roll Over Detection Electronic Parking Break – Hill Start Assist Headlight Leveling and Steering |
MXP7205VW | 2 | ±5g | LCC-8 5.5 x 5.5 x 2.7 mm (both XY and XZ sensing possible) | SPI | Automotive Vehicle Stability Control Roll Over Detection Electronic Parking Break – Hill Start Assist Headlight Leveling and Steering |
MXR7305VF | 2 | ±5g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Automotive Roll over sensing, VSC/EPB application |
MXR7900CF | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Automotive Roll over sensing, VSC/EPB application |
