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Humans perceive their surroundings primarily by using their senses. In addition to the contact-free senses of hearing, smelling, and seeing, the touch is one of the most distinctive perceptions assisting us to experience and explore our environment. Humans have the tendency to touch items with the aim of evaluating and understanding them.
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This is exactly the point where the wide range of touch-sensors made by heddier GmbH takes up. We have the appropriate solution for every task.
Principally, our touch-sensors cover wide distances. Mostly, a differentiation between a touch and an proximity sensor is simply determined through adjusting the sensors' sensitivity.
| Sensor-Type |
Function |
Distance |
| Radar sensor |
Detects movements and sends a short identification signal. |
Approx. 70 - 250 cm |
| Capacitive touch-sensor |
Detects approaching by human body parts / change of electrostatic charge |
Touch or approaching up to max. 70 cm |
| Ultra-Compact Radar-Sensors |
Doppler-radar-sensors are used wherever movements are to be detected from great distances. Our sensors are extremely compact (size 68 x 60 x 14, W x H x D in mm) and have a unique directional response pattern. The only thing you need for operating the heddier radar-sensors is a 12 volt d.c. voltage. The switch-output registers every movement within the range that is being covered by the sensors.
Doppler-radar-sensors work through all non-conductive material. Hence, they can be installed at the rear of wood or stone panels. Static objects - such as motionless persons standing still in front of a radar-sensor - cannot be detected by the sensor.
| Intelligent Touch- and Proximity- Sensors |
The heddier Touch- and Proximity -Sensors are based on the Morrormaid® technology. Among other things, the capacitive touch-sensors automatically detect the approaching of human body parts.
Mirrormaid® Touch-Sensors can be regulated within a wide sensitivity range. The user is able to select from 3 different sensitivity levels. Depending on the sensor's configuration it is possible to achieve distances up to 40cm. If desired, the distance can also be minimized to such a degree that the touch-sensitive exhibit has to be touched in order to activate the respective function.
The user can choose from two different programmes:
| 1) Sensor mode - performance analogous to sensing device |
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Function: |
Once a body part approaches the sensor zone the switch output is activated and a relay is switched on. As soon as the person moves away from the sensor zone the relay is immediately switched off. The sensor function is limited to a time span of max. 60 seconds. |
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Applications: |
- Any touch function
- Controlling of video and multimedia applications
- Proximity switch
- Safety switch
- Anti-theft device
- Controlling of technical exhibits
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2) Toggle mode - performance identical with switch |
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Function: |
Once a body part approaches the sensor zone the switch output is activated and a relay is switched on. Even if the person moves away from the sensor zone, the relay is still switched on. The relay is switched off as soon as the sensor is approached once more. The function may be repeated any time. |
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Applications: |
- Any switching function
- Controlling of lighting
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Download Operating Manual Mirrormaid Touch-Sensor (German)
Basic Function Principle
Touch-Sensors made by heddier electronic possess an intelligence which enables them to automatically control the environment the moment they are switched on. Or from a rather simplified point of view: the touch-sensors are able to identify electrical conductors as well as charge carriers. The surrounding is thus perceived by the sensor and then saved and permanently controlled with regard to any changes or deviations. This way, disturbances such as water drops and charged air can effectively be suppressed.
As soon as a body part enters a touch-sensor's sensitivity range, the field surrounding the sensor and the adjoining items are modified for a short time. Since the human body mainly consists of water and sodium chloride it is a good conductor and thus able to modify the touch-sensor's surroundings.
Function principle touch-sensor
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Different Fields of Application
| 1) Penetrating of isolated material |
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This is the most common application for touch-sensors. The sensor surface (normally a surface-sensor made of sheet copper or similar material) is installed at the rear of an isolating surface. The moment you touch the surface the contact is identified through the isolating material.
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| 2) Contacting of conductive material |
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Here, the exhibit is directly transformed into a sensor. The exhibit has to be made up of a conductive material. Nevertheless, the exhibit may surely be coated with an isolating coat. Once the conductive exhibit is hooked up to the connection of the Mirrormaid® Touch-Sensor electronics, the exhibit itself becomes a sensor surface. Depending on the exhibit's size and position it is possible to reach different distances.
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| 3) Capacitive injection into conductive materials |
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In this case, the touch-sensitive exhibit is positioned in front of the sensor surface. The injection is carried out in a capacitive manner. A new sensitive zone is built up around the exhibit. However, this zone is less sensitive than the injected surface.
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Different Forms of Sensors
The heddier electronic Touch-Sensors are able to support the most diverse forms and materials of sensors.
Surface Sensor (any form)
size: 1cm² up to approx. 2 m² |
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Stripe Sensor
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Length up to max. 5 m |
Wire Sensor (open)
Length up to approx. 7 m, the sensitivity is weakened with longer distances |
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Wire Sensor (loop)
Up to approx 1,5 m diameter |
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Body Sensor (any form)
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