Mass Air Flow Sensor - LMM-H04

? Hot Film Anemometer Component
? Highly reliable and long term stable
? Uni-directional airflow measurement
? Fast reaction time
? Manufactured according ISO TS16949
? Can be adapted to various flow channel geometries
? Can be used for almost all kind of gases and volatile substances

  • Model Number: LMM-H04
  • Data Sheet: Date Sheet File
Quantity:
- +
  • Mass Air Flow Sensor
  • Mass Air Flow Sensor
Mouse over image to zoom
Share:

Product Specification

LMM-H04 Mass Air Flow Sensor Product Description
LMM-H04 is a thermodynamic sensing element for the unidirectional measurement of mass air flow in a well defined channel. It is intended for applications with high reliability requirements such as automotive, medical or industrial gas flow applications. Mounted directly within the flowing media the LMM-H04 is sensitive against the heat transfer on a micrometer scale. This heat transfer is detected by a micro-machined silicon device which is mounted on ceramic substrate defining the geometry of the sensing element.

The functional principle of the LMM-H04 is a hot film anemometer, which is the thin film version of the hot wire anemometer. A thin film heating element (heater) is heated to a defined temperature difference with respect to the air. At zero flow there is heat dissipation due to the thermal conductivity of the air. With applied flow the heat dissipation increases steadily with the flow rate.

The sensing element can be operated at Constant Power and Constant Voltage mode. However, it is recommended to operate LMM-H04 in the described Constant Temperature Difference (CTD) mode. In the CTD mode the electronics detects any change of the thermal equilibrium very quickly and compensates it by adjusting the power settings through the heaters. This allows a very reliable mass flow measurement with a very short time constant which is in the order of milliseconds.

LMM-H04 Mass Air Flow Sensor Features
? Highly reliable and long term stability
? Fast reaction time
? Can be adapted to various flow channel geometries
? Can be used for almost all kinds of gases and volatile substances

LMM-H04 Mass Air Flow Sensor Applications
? Engine Control
? Industrial gas flow measurement
? Leak detection in pressurized air systems
? Spirometer

LMM-H04 Mass Air Flow Sensor Absolute Maximum Ratings

Parameter Symbol
Condition
Min Typ Max Unit
Storage Temperature TStore
after bonding, with protected bond bads
-40 +25 +125 °C
Storage Temperature
TStore
before bonding, unprotected bond bads
+10 +25 +40 °C
Maximum Current Imax
at now flow, +25 °C ambient
- - 20 mA

LMM-H04 Mass Air Flow Sensor Operation Conditions
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Operation Temperature
TStore
after bonding, with protected bond bads
-40 +25 +125 °C
Heater Overtemperature
? THeate
? THeate = THeater - Tair 

100 120 K

LMM-H04 Mass Air Flow Sensor Sensing Properties
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Resistance
Ambient Temperature Sensor 1
RATS1
Pad 1+2, TAmb = +25 °C
650 850 1050 Ω
Resistance Heater
RHeater1
Pad 3+4, TAmb = +25 °C
40.0
45.0
50.0
Ω
Resistance
Ambient Temperature Sensor 2
RATS2
Pad 5+6, TAmb = +25 °C
1300 1700 2100 Ω
Temperature Coefficient
R ATS and R Heater

measurement at T1 = 0 °C and T2 = +100 °C
5500 6000 6500 ppm/K
TCR Match
?→
measurement at T1 = 0 °C and T2 = +100 °C
- - 100 ppm/K

If you cannot find what you want, you can entrust ISweek to source for you. Just click:

Sourcing Service
国产精品国产国产aⅴ| 日韩精品无码免费专区网站 | 99精品视频在线在线视频观看| 亚洲日韩精品A∨片无码加勒比| 久久久久久国产精品美女| 精品国产一区二区三区色欲| 久久国产成人亚洲精品影院| 久9re热这里精品首页| 2022精品天堂在线视频| 99久久er这里只有精品18| 国产午夜精品无码| 日韩AV无码精品一二三区| 亚洲系列国产精品制服丝袜第 | 国产成人精品久久一区二区三区av| 久久精品国产亚洲αv忘忧草 | 欧美日韩精品一区二区在线观看| 久久这里只精品99re免费| 四虎影视成人精品| 2021最新国产成人精品视频| 尹人久久久香蕉精品| 国产美女精品人人做人人爽| 国产成人亚洲合集青青草原精品| 国内精品久久久久影院一蜜桃 | 久久精品视频91| 国产精品成人久久久久| 99精品国产99久久久久久97| 亚洲精品第一国产综合亚AV| 99国产精品自在自在久久| 国产亚洲综合精品一区二区三区| 3d精品重口littleballerina| 9久久这里只有精品国产| 99re热免费精品视频观看| 亚洲动漫精品无码av天堂| 国产精品免费视频一区| 99精品国产第一福利网站| 久久这里只有精品视频99| 国产精品人人妻人人爽| 久久精品?ⅴ无码中文字幕| 国产日产欧产精品精品蜜芽| 久久精品国产亚洲AV电影 | 国产精品久久久久国产A级|