German SENSITHERM sensor SENSITHERM model SENSITHERM price

SENSITHERM sensors are devices that convert mass signals into measurable electrical signal outputs. When using sensors, the actual working environment of the sensor should be considered first. This is crucial for the correct selection of load cells, as it affects whether the sensor can operate normally, its safety and service life, and even the reliability and safety of the entire weighing instrument. There are qualitative differences between the old and new national standards in the basic concepts and evaluation methods of the main technical indicators of load cells. The main types include S type, cantilever type, spoke type, plate ring type, membrane box type, bridge type, and column cylinder type.

SENSITHERM sensor introduction

Sensors used in robots to mimic tactile functions. Tactile sense is an important sensory function when humans directly contact the external environment. Developing tactile sensors that meet requirements is one of the key technologies in robot development. With the development of microelectronics technology and the emergence of various organic materials, a variety of development schemes for tactile sensors have been proposed, but most are currently at the laboratory stage, with few reaching productization. Tactile sensors can be roughly divided into contact sensors, force-torque sensors, pressure sensors, and slip sensors according to their functions.

SENSITHERM sensor classification

Slip sensors are used to judge and measure the slippage of objects when a robot grips or handles them. They are essentially displacement sensors. They can be divided into three categories based on whether they have sliding direction detection functionality: non-directional, single-directional, and omni-directional. 1) Non-directional sensors include probe earphone types, which consist of sapphire probes, metal buffers, piezoelectric Rochelle salt crystals, and rubber buffers. Sliding causes the probe to vibrate, which is converted into corresponding electrical signals by the Rochelle salt. The buffer's role is to reduce noise. 2) Single-directional sensors include drum photoelectric types, where the slippage of the gripped object causes the drum to rotate, leading to a photodiode receiving light signals transmitted through a code disk (mounted on the drum's circular face), measuring the object's slippage through the drum's rotation angle signal. 3) Omni-directional sensors use metal balls coated with insulating material and composed of conductive and non-conductive areas distributed in a latitude-longitude pattern. When the sensor contacts an object and slides, the ball rotates, causing the conductive and non-conductive areas on the ball's surface to alternately contact electrodes, thereby generating on-off signals. By counting and judging these on-off signals, the magnitude and direction of slippage can be measured. This type of sensor requires high manufacturing process standards.

SENSITHERM sensor applications

Tactile sensors are used to determine whether a robot (mainly referring to limbs) is in contact with external objects or to measure the characteristics of the contacted objects. Types of tactile sensors include micro switches, conductive rubber, carbon-impregnated sponge, carbon fiber, and pneumatic reset devices. 1) Micro switch: Composed of a spring and contacts. When the contacts touch an external object, they move away from the base, causing the signal path to break, thereby detecting contact with the external object. The advantage of this normally closed (always connected when not in contact) micro switch is its ease of use and simple structure; the disadvantage is that it is prone to mechanical oscillation and contact oxidation. 2) Conductive rubber type: It uses conductive rubber as the sensitive element. When the contacts touch an external object and are compressed, the conductive rubber is pressed, changing its resistance and thus altering the current flowing through the conductive rubber. The disadvantage of this sensor is that due to differences in the material formulation of the conductive rubber, the resulting drift and hysteresis characteristics are inconsistent; the advantage is its flexibility. 3) Carbon-impregnated sponge type: It has an elastic body made of sponge mounted on a substrate, with carbon-impregnated sponge arranged in an array within the sponge. When the contacted object is compressed, the resistance of the carbon-impregnated sponge decreases. By measuring the magnitude of the current flowing through the carbon-impregnated sponge, the degree of compression can be determined. This sensor can also be used as a pressure sensor. The advantages are simple structure, good elasticity, and ease of use. The disadvantages are that the uniformity of carbon distribution directly affects the measurement results, and the recovery ability after compression is poor. 4) Carbon fiber type: The upper layer is carbon fiber, the lower layer is a substrate, and urethane and metal electrodes are installed in between. When contacting an external object, the carbon fiber is compressed and makes contact with the electrodes to conduct electricity. The advantage is good flexibility, allowing installation on curved surfaces of robotic arms, but the hysteresis is significant. 5) Pneumatic reset type: It has a flexible insulating surface that deforms under pressure, and uses compressed air as the resetting force when contact is broken. When in contact with an external object, the internal elastic bubble (beryllium copper foil) contacts the lower contacts to conduct electricity. The advantages are good flexibility and high reliability, but it requires a compressed air source.

Weidou Intelligent Technology specializes in selling German SENSITHERM sensors, SENSITHERM proximity sensors, SENSITHERM distance sensors, SENSITHERM vision sensors, SENSITHERM displacement sensors, SENSITHERM load cells, SENSITHERM speed sensors, SENSITHERM photoelectric sensors, SENSITHERM position sensors, SENSITHERM angle sensors, SENSITHERM tactile sensors, SENSITHERM temperature sensors, SENSITHERM pressure sensors, SENSITHERM flow sensors, SENSITHERM level sensors, SENSITHERM motion sensors, SENSITHERM process sensors. Original German imports. Welcome customers to inquire and order.