WitMotion SINVT 232 IP68 Voltage Type Inclinometer User Manual

: June 15, 2024
: WitMotion

Table of Contents

USER MANUAL
- IP68 Voltage-Type Inclinometer
- References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

USER MANUAL

SINVT(RS232)

IP68 Voltage-Type Inclinometer

Tutorial Link

Google Drive

Link to instructions DEMO:
WITMOTION Youtube Channel
SINVT Playlist

If you have technical problems or cannot find the information that you need in the provided documents, please contact our support team. Our engineering team is committed to providing the required support necessary to ensure that you are successful with the operation of our AHRS sensors.

Contact

Technical Support Contact Info

Application

AGV Truck
Platform Stability
Auto Safety System
3D Virtual Reality
Industrial Control
Robot
Car Navigation
UAV
Truck-mounted Satellite Antenna Equipment

1 Introduction

The MEMS inclinometer SINVT can directly output the inclination angle. The data can be viewed through the PC software or serial port tool.

SINVT is a small volume and low-cost dual-axis voltage output tilt sensor with an output voltage of 5~36V. Built-in high-precision tilt unit, low power consumption, it is a high-precision tilt switch. X-axis Y-axis two analog voltage outputs, angle range -90 degrees to +90 degrees. Real-time monitoring of data on PC Software.

Dual axis Inclination Measuring: X-axis (-90 degree, 90 degree) Y-axis (-90 degree, 90 degree), Dual axis Analog 0-5V Voltage Output
Kalman Filtering: Integrated Kalman Filtering Algorithm ensures high-stability of angle data output even in high dynamic environment
0.1 degree Precision, IP68 Waterproof Protection, Anti-vibration

1.1 Warning Statement

Putting more than 36 Volt across the sensor wiring of the main power supply can lead to permanent damage to the sensor.
VCC cannot connect with GND directly, otherwise it will lead to the burning of the circuit board.
For proper instrument grounding: use WITMOTION with its original factory-made cable or accessories.
Do not access the I2C interface.
For secondary developing project or integration: use WITMOTION with its compiled sample code.

2 Use Instructions

Hit the hyperlink direct to the document or download center:

3 Set the Relative Attitude Angle

After the signal wire (purple) is grounded for two seconds, you can set the current attitude to a relative angle of 0°.

4 Voltage Output & Angle Calculation Formula

The SINVT is a standard voltage output of 0-5V, which corresponds to the minimum range and maximum range of the angle measurement; the calculated angle is to obtain the corresponding angle value as long as the ratio.

For example: SINVT-90 (0-5V): means ±90° measurement range, 0-5V output voltage

Voltage output (V)

Maximum range voltage output (5V)
Zero position voltage output (2.5V)
Minimum range voltage output (0V)
Minimum range (-90°)
Zero position (0 °)
Maximum range (+ 90°)
Measuring angle (°)

Voltage output and angle conversion formula:
Inclination angle = sensitivity* (vout- voffset)

Current tilt angle

Vout: Output voltage value of sensor zero position (notification is 2.5V)

Sensitivity: Sensor sensitivity: Sensor sensitivity is the proportion of voltage change corresponding to sensor inclination change.

For example: if the range of the sensor is ±90° and the corresponding voltage change is 0-5V, the sensor sensitivity is 36
90-(-90) = sensitivity*(5-0)

If the current output voltage is 3.75V, the corresponding tilt angle is 45 degrees:
45=36* (3.75-2.5)

For example: The range of the sensor is ±30°, the corresponding voltage change is 0-5V, then the sensor sensitivity is 12.
30-(-30)= sensitivity*(5-0)

If the current output voltage is 3.75V, the corresponding tilt angle is 15 degrees:
15=12* (3.75-2.5)
Therefore, the sensitivity of the sensor corresponds to the range.

5 Angle Measurement Axial Display

Product Installation Direction:

The installation should keep the sensor’s mounting surface parallel to the measured target surface. The device can be installed horizontally and vertically, please refer to the following diagram (single axis X, Y optional).

6 Placement Direction

Horizontal installation (flat) The mounting surface is parallel to the ground
Mounting surface
ground
Vertical mounting (vertical) The mounting surface is mounted perpendicular to the ground
Wall
Mounting surface
(Y-axis vertical inward)
ground

7 Installation Precautions

Precautions for product installation

Please install the inclination sensor in the correct way. Incorrect installation will cause measurement errors. Pay special attention to the surface and the two lines.

1. The mounting surface of the sensor and the surface to be measured must be tightly fixed, flat and stable. If the mounting surface is uneven, it will easily cause the angle error of the sensor, as shown in Figure 1, Figure 2.

The axis of the sensor and the axis to be measured must be parallel, and the two axes should not have an angle as much as possible, see Figure 3, Figure 4

Figure 1 Figure 2