Thin film platinum resistor

Membrane used in industry as a new generation of the platinum resistance temperature measurement and adjust the sensor, and is often used to display instrument and accessories, to directly measure - all kinds of production process 79 ℃ ~ 600 ℃ range of liquid, steam and gas medium, as well as the surface of the fixed temperature.

technical parameter

thermal resistance temperature sensing element in 0 ℃ resistance ( R0)

grade index number Pt100B R0 = 100 + 0. 12 Ω

platinum thermal resistance of the resistance and temperature generally available the following relations, said: in - 79 to 0 ℃ ~

Rt = R0 { 1+At+Bt2+C( t- 100℃) t3}

Rt=R0( 1+At+Bt2)

t ℃ for Rt thermal resistance of the resistance value ( Ω）

type of R0 to 0 ℃ when the heat resistance of the resistance value ( Ω）

t for temperature measured medium ( ℃)

A、B、C等均为有关的分度常数

测量范围和准确度

热电阻类别

分度号

精度等级

测温范围℃

允许偏差△t　℃

WZP型薄膜铂热电阻

Pt100

B级

- 79～600

±（ 0. 3 + 0. 005年︱t︱)

□ 型号和规格

型　号

尺寸mm

0℃标称电阻

测温范围℃

d

b

w

i

& 众人;

MWFT- 1

0. 5

4

2

8

0. 2

100Ω

- 79～400

MWFT- 2

0. 5

10

3

10

0. 2

100Ω

- 79～500

MWFT- 3

0. 5

15

3

10

0. 25

100Ω

- 79 ~ 600

the advantages of the thin film platinum thermal resistance

the advantages of thin film platinum thermal resistance, has become the body of the platinum thermal resistance element, its distinct advantages as follows:

(1) small volume now * small size film platinum thermal resistance element, the width of 3 mu m, length is 1. 6 mm, thickness of 0. 6mm;

2. Fast response time in the tau zero. Five conditions, water velocity V = 0. 2 m/s is only 0. 5 s, V = 1 m/s air velocity is only 4 s;

3. Good consistency automated production and testing lines, make the device has good consistency;

(4) mechanical good anti-seismic performance, resistance to vibration and other mechanical properties of wire is obviously better than the platinum thermal resistance element;

(5) high precision in addition to the regular class B, class A, also can provide A third class B and 1/10 class B precision components;

6 wide temperature range from minus 196 ℃ to 1000 ℃ of the thin film platinum thermal resistance element has emerged, and application of * high temperature of 1250 ℃ products have been in research and development, will be launched soon;

7 structure diversification from the traditional structure, lead to the leadless SMD products and adapted to the special structure of the products have been listed in the field of various special;

today fortunately, long-term stability limit working temperature of components more than 1000 hours, the change of its resistance value & lt; 0. 02%;

pet-name ruby more than nominal value from Pt6. 8 to Pt10k products have been on the market;