The force sensor KD33 is used for force measurement in the range of millinewton with a resolution of approx. 1 mg (10 nN). The low measuring range of 50 mN (5g) is achieved by the use of semiconductor strain gauges on a double beam made of a titanium alloy. Due to the use of semiconductor strain gauges, the sensor is very robust. The force sensor can be exposed to a force of up to 10N without damage. The natural frequency of the sensor without additional masses is 800Hz.
Due to the small measuring range, the mounting position of the sensor must be selected in such a way that the force acts in a horizontal direction. This is achieved .B by a vertical installation position ("standing"), or by a horizontal insertion with a force induction in the horizontal plane. The ideal pantry is 2.5V. For this purpose, the measuring amplifiers GSV-3 in the measuring range 3.5 mV/V and GSV-8 in the measuring range 7 mV/V. Higher supply voltages of e.B. 5V are technically possible, but cause a significant shift of the zero signal by approx. +- 2mV/V.
The force sensor KD33 is largely protected against environmental influences (light, infrared radiation, air flow) by a housing. Nevertheless, for example.B the approximation of a palm to a few cm causes an immediate upset of the
