New Product Flow Sensor, Measuring Small, High Flows and It's Direction

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Payment Type:	T/T

Product Description

Product:

The AFE-01 consists of four platinum thin film resistors
The low ohmic resistance with a small area isused as heater
Two high ohmic resistors on the left and right hand side of the heater are used to detect the flowspeed and flow direction
A further resistance allows the measurement of the gas temperature
The two resistors close to the heater can be connected in a bridge circuit
This leads in an output signal which is a function of flow speed and direction
In no flow condition, these two resistors are heated up equally
If flow appears, one of them is cooled more than the other, depending on flow direction
The temperature difference can be measured and depends on flow speed and direction
Response and heating up time of this flow sensor is very short due to the small thermal mass
This kind of evaluation allows the measurement of very low flow speeds
In order to detect higher flow velocities, the temperature sensor can be connected in a constant-temperature-anemometer

The AFE-01 consists of four platinum thin film resistors

The low ohmic resistance with a small area isused as heater

Two high ohmic resistors on the left and right hand side of the heater are used to detect the flowspeed and flow direction

A further resistance allows the measurement of the gas temperature

The two resistors close to the heater can be connected in a bridge circuit

This leads in an output signal which is a function of flow speed and direction

In no flow condition, these two resistors are heated up equally

If flow appears, one of them is cooled more than the other, depending on flow direction

The temperature difference can be measured and depends on flow speed and direction

Response and heating up time of this flow sensor is very short due to the small thermal mass

This kind of evaluation allows the measurement of very low flow speeds

In order to detect higher flow velocities, the temperature sensor can be connected in a constant-temperature-anemometer

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