TZH is a dual-channel hall speed sensor designed and produced by Shanghai renhao electronic technology co., LTD. The sensor is installed on the measuring gear box body, which can be used to detect the rotation speed, linear speed, acceleration of the wheel shaft and the running direction of the vehicle.There is no contact between the sensor and the tested gear, no wear, easy installation, it has the characteristics of wide speed measurement range, wide temperature adaptation range, strong seismic resistance, etc..
Technical parameters
1. Speed measurement range: , 0 ~ 20KHz
2. Speed measuring gear: modulus ≥2, material is magnetic low carbon steel, tooth shape conforms to GB/T1356, effective gear width is not less than 10mm
3. Install air gap: 0.3mm ~ 1.5mm; standard air gap: 0.8mm
4. Output channel number: double channel
5. Output waveform: square wave, according to the requirements and calculation method of TB/T 2760.2-2016 4.3.2, the voltage change rate of rising edge and falling edge should be no less than 3.5v /us
6. The output amplitude load resistance for the 1 k Ω, high level p 0.8 times the working voltage, low level 0.5 V or less
7. Pulse duty ratio: % 50 + 20 %
8. Phase difference: 1 channel lead 2 channel 90 30° when the gear is rotated as shown in the figure
9. Load resistance: p 1 k Ω
10. Working power: 10 ~ 30VDC , rated working voltage: 15VDC, fluctuation range: 0.85Un ~ 1.15Un
11. No-load current consumption: ≤35mA
12. Power polarity protection:
13. Output short circuit protection:
14. Insulation resistance and dielectric strength:
Each channel (including the cable shielding layer) and the shell of the insulation resistance between dc 500 v megohmmeter measuring, should not be less than 100 m Ω
Each channel (including cable shielding layer) can withstand 50Hz , 1500 R.M.S ac voltage, duration 1min, the sensor should have no breakdown or flashover phenomenon
15. Working temperature: - 40 ℃ ~ 125 ℃
16. Vibration and shock resistance: it conforms to GB/T 21563-2008< span>3 class axle installation without damage or fault
17. Sealing: IP68 (not including connector, connector IP67 requirements)
18. External wire and plug: 4×0.5mm2 shielded cable, the electrical interface USES special electrical connector, and the electrical connector conforms to TB/T 2761 provisions, users can also be defined as required
