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Jiangxi Sanxin Hi-Tech Ceramics Co., Ltd.
Qxygen Sensor Chip
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Introduction of Qxygen Sensor Chip

1. Function: Oxygen sensor for automobiles is the major sensor component in electronic fuel injection engine control system, and is the key part to control automobile exhaust emission, reduce automobile pollution to the environment and improve fuel combustion quality of automotive engine. Oxygen sensor is used in the feedback control system of the electronic control fuel injection device, to detect the concentration of oxygen in the exhaust gas and the air fuel ratio. It is also used to monitor theoretical air fuel ratio (14.7:1) combustion in the engine, and to provide feedback signals to the computer.

2. Mounting position of oxygen sensor:

Wide Band Oxygen Sensor Chip
Introduction of Wide Band Oxygen Sensor Chip

1. Typical properties:

(a) Dimensions: length (mm) × width(mm) × thickness(mm) = (59.4±0.5) × (4.45±0.1) × (1.25±0.05)

(b) Bending strength (MPa) ≥380

(c) Insulation between heater and electrode (MΩ)≥30

(d) Insulation between positive and negative signal electrode (MΩ) ≥30

(e) Heater resistance: 3.2±0.5Ω

(f) Operating voltage: 9V

2. Operating temperature range:

Table 1 Operating temperature range of wide band oxygen sensor

Position in a chip

Min. working

temperature

Min. storage temperature

Max. working

temperature

Max. storage temperature

Induction area

350

-40

1030

90

Electrode area

-

90

3. Performance indicators:

Table 2 Performance of wide band oxygen sensor chip

Property

Typical Values

Heating steady state power

10W

Nernst cell internal resistance

80Ω

Lambda measuring accuracy (0.8)

0.8 ± 0.1

Lambda measuring accuracy (1)

1 ± 0.03

Lambda measuring accuracy (1.7)

1.7 ± 0.05

Lambda measuring range

0.65~2.4

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