Instruction manual Digital dual axis tilt sensor LE-60
One. Features
1. The tilt sensor LE-60 measures the biaxial tilt angle change with the horizontal plane as the reference surface through a silicon micromechanical sensor.
2. Data communication RS232 interface and duplex 485 interface are optional.
3. Calibrate the horizontal zero point of the inclination through serial port commands.
4. The shell structure is waterproof and resistant to external interference.
two. Product description The tilt angle sensor LE-60 is a dual-axis inclinometer, which can be converted into a tilt angle change by measuring the static gravity acceleration change. Measure the tilt and pitch angle of the output sensor relative to the horizontal plane. The built-in temperature sensor can correct the temperature drift of the sensor. The angle response speed of the tilt sensor can be adjusted from 4 times / second to 12.8 times / second. Built-in impact suppression mode, depending on the angle to reflect the difference in speed, distinguish between impact vibration and inclination changes.
three. Technical index
1. Main indicators in normal mode (power = + 12V)
Output speed
4 times / sec-12.8 times / sec adjustable
unit
Measuring range
Biaxial ± 15, ± 30, ± 45, ± 60, optional
degree
Resolution
± 0.02
degree
Accuracy (<± 30 °)
<± 0.06
degree
Accuracy (<± 60 °)
<± 0.1
degree
Nonlinear
± 0.1%
Repeatability
± 0.05
degree
Temperature drift
0.01 ° / ℃
2. Other indicators
Minimal
normal
maximum
unit
Operating Voltage
5.5
9
15
V
Working current
50
55
60
MA
Serial data format
9600, n, 8, 1
BPS *
Operating temperature
-40
+80
℃
3. Limit values ​​of working parameters
Minimal
maximum
unit
voltage
5
18
V
Operating temperature
-55
+100
℃
four. Output data format After the LE-60 tilt sensor is powered on, it waits for commands. The command format and output format are as follows:
1. Send command format:
Byte position
meaning
data
Explanation
1, 2
Frame header
0xAA 0xAA
3
Data length
0x04
Data length except frame header
4
Sensor address
0Xxx
232 output mode address is 2
5
command
0x01
Command output data frame
6
Check word
XOR result of all previous data
2. Receive output format:
Byte position
meaning
type of data
Explanation
1, 2
Frame header
0xAA, 0xAA
3
Frame length
byte
All data length except frame header
4
address
byte
0Xxx (232 output mode address is 2)
5
Command returns
byte
The received command word returns
6, 7
Keep
8, 9
Keep
10, 11
X axis angle
Integer
Angle = integer / 100 (unit: degree) *
12, 13
Y-axis angle
Integer
Angle = integer / 100 (unit: degree)
14
Keep
Integer
Internal temperature (error ± 3 degrees)
15
check
byte
XOR test result of the first 14 bytes of data
* Note: For standard double-byte integers, the highest bit = 0, indicating a positive number, the highest bit = 1, indicating a negative number.
Fives. Command list, and detailed explanation of the command (the test product does not have this command yet)
Command word
meaning
Explanation
0x01- 0x05
Set output speed
0x01 corresponds to 20 times / second
0x05 corresponds to 5 times / second
0xa0
Single output
Each time the 0xa0 command is sent to output data, the state is saved after power-off
0xa1
Continuous output
After sending the 0xa1 command once, the data is output continuously according to the set response speed
0xb6
Angle zero calibration 1
Place the tilt sensor on any plane
0xb7
Angle zero calibration 2
Place the sensor 180 degrees reverse on a flat surface
0xb8
Save angle zero parameter
Correct the absolute value of the installation plane of the angle sensor (after calibration, the measurement result on the standard horizontal plane is within the error range of both axes)
0xd0
X angle zero setting
Set the relative zero point of the X axis on a non-horizontal surface
0xd1
Y angle zero setting
Set the zero point of the relative angle of the Y axis on a non-horizontal surface
0xd2
Clear relative zero setting
Clear the zero point set by 0xd1, 0xd2 command
0xf1
Hexadecimal output
The above commands are valid in hexadecimal mode
0xf0
Ascii output
Secondary mode can be connected to voltage conversion board
six. The socket uses XS12J7C K7ABR55 7-core waterproof socket, the socket wiring is defined as follows:
Plug pin number
name
Explanation
1
GND
Input power ground
2
+ 12V
Input power positive
3
NC
4
NC
5
RXI
6
TX0
7
NC
Forbid connection
Seven. Mechanical dimensions of the shell: (optional without shell)
Shell size: rectangle, length 90mm, width 60, height 30mm.
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