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參數(shù)資料
| 型號： | LIS3LV02DL-TR |
| 廠商： | 意法半導體 |
| 英文描述： | MEMS INERTIAL SENSOR 3-Axis - 【2g/【6g Digital Output Low Voltage Linear Accelerometer |
| 中文描述： | MEMS慣性傳感器3軸- 【2克/【6克數(shù)字輸出低電壓線性加速度計 |
| 文件頁數(shù)： | 10/36頁 |
| 文件大?。?/td> | 248K |
| 代理商： | LIS3LV02DL-TR |
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Mechanical and Electrical specifications
LIS3LV02DL
10/36
2.4
Terminology
2.4.1
Sensitivity
Sensitivity describes the gain of the sensor and can be determined e.g. by applying 1g
acceleration to it. As the sensor can measure DC accelerations this can be done easily by
pointing the axis of interest towards the center of the earth, noting the output value, rotating the
sensor by 180 degrees (point to the sky) and noting the output value again. By doing so,
±
1g
acceleration is applied to the sensor. Subtracting the larger output value from the smaller one
and divide the result by 2 leads to the actual sensitivity of the sensor. This value changes very
little over temperature and also very little over time. The Sensitivity Tolerance describes the
range of Sensitivities of a large population of sensor.
2.4.2
Zero-g level
Zero-g level Offset (Off) describes the deviation of an actual output signal from the ideal output
signal if there is no acceleration present. A sensor in a steady state on a horizontal surface will
measure 0g in X axis and 0g in Y axis whereas the Z axis will measure 1g. The output is ideally
in the middle of the dynamic range of the sensor (content of OUT registers 00h, 00h with 16 bit
representation, data expressed as 2’s complement number). A deviation from ideal value in this
case is called Zero-g offset. Offset is to some extent a result of stress to a precise MEMS
sensor and therefore the offset can slightly change after mounting the sensor onto a printed
circuit board or exposing it to extensive mechanical stress. Offset changes little over
temperature, see “Zero-g level change vs. temperature”. The Zero-g level of an individual
sensor is stable over lifetime. The Zero-g level tolerance describes the range of Zero-g levels of
a population of sensors.
2.4.3
Self Test
Self Test allows to test the mechanical and electric part of the sensor, allowing the seismic
mass to be moved by means of an electrostatic test-force. The Self Test function is off when the
self-test bit of ctrl_reg1 (control register 1) is programmed to ‘0‘. When the self-test bit of
ctrl_reg1 is programmed to ‘1‘ an actuation force is applied to the sensor, simulating a definite
input acceleration. In this case the sensor outputs will exhibit a change in their DC levels which
is related to the selected full scale and depending on the Supply Voltage through the device
sensitivity. When Self Test is activated, the device output level is given by the algebraic sum of
the signals produced by the acceleration acting on the sensor and by the electrostatic test-
force. If the output signals change within the amplitude specified inside table 2 than the sensor
is working properly and the parameters of the interface chip are within the defined specification.
相關PDF資料 |
PDF描述 |
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| LIS3LV02DQ | MEMS INERTIAL SENSOR 3-Axis - +-2g/+-6g Digital Output Low Voltage Linear Accelerometer |
| LIS3LV02DQ-TR | MEMS INERTIAL SENSOR 3-Axis - +-2g/+-6g Digital Output Low Voltage Linear Accelerometer |
| LJ600600-1 | Class J Fuse Blocks |
| LJ600100-1 | Class J Fuse Blocks |
| LJ600100-3 | Class J Fuse Blocks |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LIS3LV02DQ | 功能描述:加速計 - 板上安裝 3-axis +/-2g/+/-6g MEMS Intertial Sensr RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LIS3LV02DQ-TR | 功能描述:加速計 - 板上安裝 INERTIAL SENSOR Lo Vltg 3Axis RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LIS3MDL | 制造商:STMicroelectronics 功能描述:DIGITAL OUTPUT MAGNETIC SENSOR ULTRA LOW-POWER, HIGH PERFORM - Trays |
| LIS3MDLTR | 制造商:STMicroelectronics 功能描述:ultra low-power, high performance 3-axis magnetometer |
| LIS-5-28 | 制造商:TDK-Lambda Corporation 功能描述:30.8W AC To DC Switching Power Supply - 95-132V/187-265V in - 28V 1.1A out |
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