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QTB351 metal base pressure sensitive chip

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QTB351 metal base pressure sensitive chip

The QTB3 51 type metal-based pressure-sensitive chip uses MEMS technology to directly fabricate the strain resistance on a 17-4PH stainless steel substrate. Through the elastic deformation of the substrate, the chip outputs an mV voltage signal linearly related to the measured pressure to achieve Accurate and fast measurement of the measured pressure. Designed for the high specification requirements of sensor performance, reliability and stability of major sensor OEMs and integrators, the chip outputs mV voltage signals, and customers can process the signals according to their actual requirements. QTB352 high temperature resistant metal-based pressure sensitive chip (customized)
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1
product description   

The QTB3 51 type metal-based pressure-sensitive chip uses MEMS technology to directly fabricate the strain resistance on a 17-4PH stainless steel substrate. Through the elastic deformation of the substrate, the chip outputs an mV voltage signal linearly related to the measured pressure to achieve Accurate and fast measurement of the measured pressure. Designed for the high-specification requirements of major sensor OEMs and integrators for sensor performance, reliability and stability, the chip outputs mV voltage signals, and customers can process the signals according to their actual requirements.

QTB352 high temperature resistant metal-based pressure sensitive chip (customized)

2
Features 

◆The sputtering film technology guarantees good long-term stability and high reliability

◆Wide working temperature zone, low temperature drift, high overload capacity

◆Integrated structure, suitable for a variety of fluid media

◆17-4PH stainless steel material, corrosion resistance

◆Small size, the outer diameter of the strain surface is 7mm, the outer diameter of the step is 9.5mm, the height is 5mm, and the product weight is 1g

◆Unique ID function code

◆High cost performance, suitable for OEM manufacturers

3
Circuit principle and pin identification definition

Pin number

1

2

3

4

Function code

V-

S+

V +

S-

Function definition

power supply-

Output+

Power+

Output-

 

4
Use and industry

Gas and liquid pressure measurement in the fields of aerospace, shipbuilding, rail transit, construction machinery, gasoline cylinder direct injection and diesel high-pressure common rail direct injection, petroleum and chemical industry, industrial automation control, etc.; pressure transmitters, pressure detection instruments and meters .

5
Product parameter

 

Measured medium

Gas and liquid compatible with stainless steel

Type of pressure

Gauge pressure, absolute pressure

Range

0.5MPa~250MPa (customizable)

Precision

± 0.03% FS 、 ± 0.05% FS 、 ± 0.1% FS 、 ± 0.2% FS 、 ± 0.5% FS 、 ± 1% FS

Not linear

± 0.1% FS 、 ± 0.15% FS 、 ± 0.2% FS 、 ± 0.3% FS 、 ± 0.4% FS 、 ± 0.5% FS 、 ± 0.6% FS

Hysteresis

±0.1%FS

Repeatability

0.1%FS

Sensitivity

1.3 ± 0.10mV / V 、 1.4 ± 0.25mV / V 、 1.5 ± 0.1mV / V 、 1.7 ± 0.2mV / V

Long-term stability

±0.2%FS/year

Operating temperature

-40~+105℃ or customized

Zero temperature drift

±0.01 %FS/℃

Full-scale temperature drift

±0.03 %FS/℃

Insulation resistance

≥1000MΩ/500VAC

Breaking pressure

10~40 times (maximum not exceeding ≤400MPa)

Allow overload

1.5~2 times or customized

Response time

≤0.1 millisecond

Material

17-4PH

High reliability

Withstand 10 million shocks and sustain pressure

Dimensions

The outer diameter of the strain surface is 7mm, the outer diameter of the step is 9.5mm, and the height is 5mm

Recognizable

Unique ID code, can query the manufacturing, testing and calibration information of the chip

 

6
Dimensions and wiring instructions

7
Pressure level, sensitivity and pressure range

 

Pressure (MPa)

Sensitivity (mV/V)

Non-linearity (±%F·S)

Overload pressure (rated pressure)

Breaking pressure (rated pressure)

0.5

1.4±0.25

0.50

×2

×30

0.7

1.4±0.25

0.50

×2

×30

1.0

1.3±0.10

0.60

×2

×40

1.6

1.5±0.10

0.60

×2

×40

2.0

1.7±0.20

0.40

×2

×40

2.5

1.7±0.20

0.30

×2

×40

4

1.7±0.20

0.30

×2

×20

6

1.7±0.20

0.20

×2

×20

10

1.7±0.20

0.20

×2

×20

16

1.7±0.20

0.20

×2

×10

25

1.7±0.20

0.15

×2

×10

40

1.7±0.20

0.15

×2

×10

60

1.7±0.20

0.15

×2

≤400MPa

100

1.5±0.10

0.10

×1.5

≤400MPa

160

1.5±0.10

0.10

× 1.5

≤400MPa

250

1.5±0.10

0.10

≤300MPa

≤400MPa

Note: Other pressure ranges can be customized

 

8
product model

model

Range

Accuracy class

Temperature range

 

QTB 351

055 0.5MPa

A 0.03% FS

11 0~85℃

075 0.7MPa

B 0.05% FS

22 -10~105℃

105 1 MPa

C 0.1% FS

32 -25~105℃

 

165 1.6MPa

D 0.2% FS

42 -40~105℃

205 2 MPa

E 0.5% FS

52 -55~105℃

255 2.5MPa

F 1% FS

 

046 4 MPa

 

066 6 MPa

106 10 MPa

166 16 MPa

256 25 MPa

406 40 MPa

606 60 MPa

107 100 MPa

167 160 MPa

257 250 MPa

 

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Copyright © Hunan Qitai Sensing Technology Co., Ltd.    Record number:湘ICP备19022602号-1    Powered by:300.cn Changsha

Copyright © Hunan Qitai Sensing Technology Co., Ltd.

Record number:湘ICP备19022602号-1  Powered by:300.cn Changsha

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