Is defined as the second generation of creative tension sensor is currently in development, New Zealand, Denmark technology company LEAP are developed using wacker ELASTOSIL Film for this new class of sensor research and development. LEAP the first sample has entered the testing phase...
Sensor precision has been a key factor in the development of wearable devices, the earliest industry predicted iWatch will be medical grade products, obviously the smart watches still have not reached the medical level. In fact, wearable device can data as the basis of medical diagnosis, bear the brunt of depends on sensors.
Is defined as the second generation of creative tension sensor is currently in development, StretchSense LEAP (New Zealand), Denmark technology company adopts the wacker development ELASTOSIL Film for this new class of sensor research and development. LEAP the first sample has entered the testing phase.
Wacker engineering department of organic silicon wang said nine mountain, the core component of the sensor is dielectric electroactive polymer (hereinafter referred to as: dEAP), LEAP technology company using wacker group ELASTOSIL flexible organic silicon thin film production of the polymer. Very thin precision membrane lies between two conductive electrode layer, the electrode made from mixed with coal ash, organic silicon. Three layers constitute the flexible capacity, can absorb and store charge. If the silicon capacitance bent or deformation, capacitance will change. By detecting the weak capacitance change, realize the sensors to collect information for the purpose of human activity. In this way, the doctor can observe the patient's health status, physical therapist can also be based on information correct posture.
Dielectric property of the silicone elastomer is a kind of electroactive polymers, under certain conditions, it can respond to stimulation. For example, the elastomer as insulation between the two electrode layer, as long as the applied voltage, the shape of the elastomer will change. This feature makes the development of the technology of electroactive organic silicon material is very special.
If the organic silicon thin films were coated on the surface of the up and down that flexible conductive material, can form a deformable capacitance: under dc voltage, attracted to each other between the electrode and squeeze the flexible material. Elastomer layer thinner, at the same time, in the direction of the plane, so that the capacitance on the whole become flat, wide. In the case of not applied voltage, flexible material and will return to its original shape. Silent deformation process and repeatable at any time.
In addition, the deformation capacity and other technical advantages. For example, in the actuator can directly control small moves, can use the characteristics make accurate and efficient working pump, relay, artificial muscles, scraping tool or stereo equipment. If hundreds of organic silicon thin film capacitor stacked (stack), it can even generate electricity through its movement. In a German federal government support of innovation projects, Germany Bosch and wacker group has successfully developed a set of waves can be new equipment of potential energy into electricity.
Wearable sensors promoted consumer electronics, medical technology and health care of the development of new technologies. With the sensor technology, suitable for the man-machine interface, soft robot technology, robot control, virtual reality, interactive games, and rehabilitation of motion capture clothing and sensor gloves will become a reality. The first adopted the wacker organic silicon thin film is wearable sensors will come out in 2017. , to say the new wearable sensors will enable wearable device has more practical value.
Wacker silicone membrane composition of 100% organic silicon material. Like other silicone rubber, has the characteristics such as high temperature resistance, resistance to ultraviolet radiation, even under the condition of low temperature to remain flexible and chemical inertness. In addition, the following special of precious value to industrial sectors:
Dielectric properties: organic silicon is excellent insulation material, especially suitable for capacitor production. , the flexible material: organic silicon thin film not only has a very high elasticity, and won't flabby. Test proves that the ELASTOSIL ® film still has not appeared after 10 million times the pressure bearing circulating material fatigue. Organic silicon material of EAP sensor is extremely strong, after years of use is reliable in quality. Permeability: organic silicon waterproof membrane, and water vapor, and some gas can be through the film. Its air permeability properties with gas selectivity, carbon dioxide, oxygen, and steam through organic silicon material faster than nitrogen. Therefore, can be ELASTOSIL ® film as the use of gas separation membrane, such as separation of carbon dioxide.
Organic silicon film class will have more applications, such as deformation capacitance electronic field. Experts predict that the next few years the use of dielectric electroactive elastomer relays, switches and valves will become the leading market. Automobile industry in the future, EAP equipment will be fully replace electronic servo motor. One day, deformation capacitance technology can also be used for the development of new technologies, such as deformable touch screen can make the blind to read. In theory, but also possible for wind turbines equipped with adaptive rotor blade, make its can adjust automatically according to the wind. Or an airplane wing, can be adjusted according to the flight situation appearance.
Industrial area, deformation capacitance technology may replace hydraulic wave-power generators in the future. Organic silicon thin-film flexible, strong and long life and other advantages will greatly reduce the cost of generator. Test the product first equipped with ELASTOSIL ® film has begun for testing. In addition to health care, SILPURAN ® silicone film with strong permeability, biological compatibility and easy sterilization. Therefore, it is very suitable for manufacturing flexible cushion belt, wound for wound healing of the human activities.
