An overview of the different filter settings for microsonic ultrasonic sensors.

Filters instellen. Je hebt het nodig! Elke toepassing vereist een op maat afgestelde sensor en in sommige gevallen heeft een sensor een softwarematig filter nodig om optimaal te kunnen presteren. In dit artikel geven we antwoord op een aantal belangrijke vragen: welke filters zijn er? Hoe kan ik deze filters instellen? En hoe werken deze filters? Lees verder en kom erachter welke filters er zijn voor de ultrasonic sensors from microsonic. 

F00 - No filter activated

Every distance measurement is done unfiltered when the no filter setting is applied. This setting is preferrably used in measurements that are performed in laboratory environments. It is not recommended for industrial use.

F01 - Standard filter

With this filter it is possible to filter the measurements. By changing the hold-time of a rapidly changing value, or even completely turning it off, it is possible to determine which peak values can be accepted as a real measurement. This filter is the best choice for most industrial applications.

Filters instellen: Het meest gebruikte standaardfilter voor ultrasoon sensoren

F02 - Averaging filter

This filter setting is the standard for analog ultrasonic sensors to smooth the change in distance. This filter can be applied in applications that have to deal with vibrations that can be seen in the measurements by flattening these. The output values remain stable this way. Thus, peak values will only occur when these surpass the vibrations of the applications significantly.

Middelend filter instellen voor ultrasoon sensoren

F03 - Foreground filter

The sensor will have a delayed response with this filter during fast changes in distance. Preferrably, the most near objects will be detected. An example of this is the spraying arm on an agricultural vehicle. It is necessary that the background object, the ground in this case, is ignored. Because of this, the object on the foreground, in this case the vegetation, can be detected and measured.

Voorgrond filter instellen voor ultrasoon sensoren om objecten op de achtergrond te negeren

F04 - Background filter

This filter makes the sensor have a response delay in rapid changes in proximity, preferrably objects that are further away will be detected. An example of such an application is a fan in front of an object that has to be ignored. This settings makes it possible to ignore the fan in detections and measurements.

Achtergrond filter instellen voor ultrasoon sensoren
Filter
Application
F00
No filter
Enkel voor onderzoek, niet aan te raden voor industriële toepassingen.
F01
Standard filter
Aan te raden filter voor de meeste toepassingen.
F02
Averaging filter
Klassieke middeling voor analoge sensoren om een stabiele uitgangswaarde te ontvangen.
F03
Foreground filter
Speciaal filter om dichtbij zijnde objecten waar te nemen en objecten op de achtergrond te negeren.
F04
Background filter
Speciaal filter om verder gelegen objecten waar te nemen en objecten in de voorgrond te negeren.

What suits your application best?

Which sensor supports which filter? In the table below it can be seen which microsonic sensor series supports which filters:

F01
F02
F03
F04
mic+
mic
crm+
hps+
pico+
lcs-
lcs+

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