>

Wireless wheel speed sensor

image.jpeg

The system is an innovative system for wirelessly measuring wheel speed and temperature without any additional mechanical connection. The system does not require a stator or additional reference points and provides measurements on test benches and outdoors, even in harsh conditions such as mud, snow and dust. The linearity of the device is typically 0.2% better. Impact on the axle also does not affect the results, fully supporting various wheel speed tests under the vehicle's dynamic performance.

The system includes four measuring modules and one receiving module. The measurement module has a built-in speed sensor, a three-channel temperature measurement module, a rechargeable battery, and a wireless transmission module. The sensor can directly obtain the wheel speed and wheel temperature on the wheel by fixing the wheel screw. The transmission protocol of the receiving module is 2.4G, and the signal and temperature of four wireless measurement modules are simultaneously received and output through the CAN protocol.



Features:

1. Each system includes 4 wheel speed sensor slaves, and each slave includes 1 wheel speed measurement channel and 3 temperature channels;

2. Support up to ±7200 RPM;

3. Accuracy<0.3 % at 0℃ to 50℃;

4. Built-in gyro, no need for fixing frame, easy to install;

5. Support various types of thermocouple signal access;

6. IP67 waterproof grade;

7. The temperature of the detection point is sent to the receiving end wirelessly, and the CAN message is output.


Performance parameters


                                                                    Wireless wheel speed sensor

Maximum operating speed 

±7200 RPM

Accuracy 

0.3 % at 0 to 50

Internal sampling rate 

200Hz

Test temperature range 

-20 to +65

Weight 

500g

Transmission frequency 

2.4G

Resolution 

16 bit

Synchronization performance 

Four-wheel synchronization

Waterproof grade 

IP67

Power supply 

40h continuous running time

 

                                                            Wireless Temperature Test Module

Type E (NiCr-CuNi) 

-60 … 900 ° C (-76 … 1652 ° F) 

Type J (Fe/CuNi) 

-50 … 1000 ° C (-58 … 1832 ° F)

Type K (NiCr/NiAl)

-60 … 1370 ° C (-76 … 2498 ° F) 

Type N (NiCrSi/NiSi)

-50 … 1300 ° C (-58 … 2372 ° F) 

Type R (Pt13Rh/Pt) 

-50 … 1760 ° C (-58 … 3200 ° F)

 Type S (Pt10Rh/Pt) 

-50 … 1760 ° C (-58 … 3200 ° F) 

Type T (Cu/CuNi) 

-200 … 200 ° C (-328 … 392 ° F) 

Accuracy at 25 °C ambient   temperature 

±0.025 %fs

 

                                                                      Wireless receiver parameters

Antenna Type

2.4G Hz

Output sampling rate

100Hz

CAN interface

CAN 2.0

Voltage input

9-36Vdc


0599-5202613