Germany FORTIS ANGELO sensor FORTIS ANGELO model FORTIS ANGELO price

FORTIS ANGELO sensors are components that convert changes in non-electrical quantities (such as speed, pressure) into changes in electrical quantities. Depending on the non-electrical quantity converted, they can be classified as pressure sensors, speed sensors, temperature sensors, etc., and serve as parts and accessories for measurement and control instruments and equipment.

FORTIS ANGELO sensor structure

It consists of two parts: the scale grating and the grating readhead. The figure on the right shows the structure of the grating scale. The key part of the grating detection device is the grating readhead, which consists of a light source, condensing lens, index grating, photoelectric elements, and adjustment mechanisms. There are many structural forms of grating readheads, which are classified based on their structural characteristics and application scenarios into direct-receiving readheads (also known as silicon photovoltaic cell readheads), mirror-image readheads, beam-splitter readheads, and metal grating reflective readheads.

FORTIS ANGELO sensor principle

The essence of a grating displacement sensor is to measure position using the grating pitch as a standard ruler. High-resolution grating scales are generally expensive and difficult to manufacture. To improve system resolution, Moiré fringes need to be subdivided; grating scale sensor systems mostly use electronic subdivision methods. When two gratings overlap with a slight angle, Moiré fringes are generated in a direction roughly perpendicular to the grating lines. As the grating moves, the Moiré fringes move up and down accordingly. This converts the measurement of grating pitch into the measurement of the number of Moiré fringes. Placing 4 photoelectric devices at certain intervals within one Moiré fringe width enables electronic subdivision and direction determination. For example, for a grating scale with 50 line pairs/mm, the grating pitch is 0.02mm. If four-fold subdivision is used, counting pulses with a resolution of 5μm can be obtained, which achieves high precision in general industrial measurement and control. Since displacement is a vector, both its magnitude and direction must be detected; therefore, at least two photoelectric signals with different phases are required. To eliminate common-mode interference, DC components, and even harmonics, differential amplifiers composed of low-drift operational amplifiers are typically used. The 4 photoelectric signals obtained from 4 photosensitive devices are sent to the input terminals of 2 differential amplifiers respectively. The two signals output from the differential amplifiers have a phase difference of π/2. To obtain direction determination and counting pulses, these two signals need to be shaped, first into square waves with a duty cycle of 1:1. Then, by comparing the phase of the square waves, the movement direction of the grating scale can be determined. By counting the square wave pulses, the displacement and speed of the grating scale can be obtained.

FORTIS ANGELO sensor usage precautions

When plugging and unplugging the connector of the linear encoder sensor and the digital readout unit, ensure the power is turned off. Install an external protective cover whenever possible, and promptly remove chips and oil that splash onto the scale to strictly prevent any foreign matter from entering the housing of the linear encoder sensor. Regularly check whether the mounting and connection screws are loose. To extend the service life of the dust-proof sealing strip, apply a thin, even layer of silicone oil to the sealing strip, taking care not to let it splash onto the glass grating etched surface. To ensure the reliability of the linear encoder sensor, clean and wipe the linear encoder scale surface and the index grating surface at regular intervals using an ethanol mixture (each 50%), keeping the glass linear encoder scale surface clean. The linear encoder sensor is strictly prohibited from being subjected to severe vibration or impact, as this may damage the linear encoder scale; if the linear encoder scale breaks, the linear encoder sensor will fail. Do not disassemble the linear encoder sensor on your own, and never arbitrarily change the relative spacing between the main grating scale and the secondary grating scale. Otherwise, this may compromise the accuracy of the linear encoder sensor and cause relative friction between the main grating scale and the secondary grating scale, damaging the chrome layer and thus the grating lines, resulting in the scrapping of the linear encoder scale. Take care to prevent oil stains and water from contaminating the linear encoder scale surface, as this may disrupt the distribution of the grating lines and cause measurement errors. The linear encoder sensor should avoid operating in environments with severe corrosive effects, to prevent corrosion of the grating chrome layer and the linear encoder scale surface, which would degrade the quality of the linear encoder scale.

Weidou Intelligent Technology specializes in selling German FORTIS ANGELO sensors, FORTIS ANGELO proximity sensors, FORTIS ANGELO distance sensors, FORTIS ANGELO vision sensors, FORTIS ANGELO displacement sensors, FORTIS ANGELO load cells, FORTIS ANGELO speed sensors, FORTIS ANGELO photoelectric sensors, FORTIS ANGELO position sensors, FORTIS ANGELO angle sensors, FORTIS ANGELO tactile sensors, FORTIS ANGELO temperature sensors, FORTIS ANGELO pressure sensors, FORTIS ANGELO flow sensors, FORTIS ANGELO level sensors, FORTIS ANGELO motion sensors, and FORTIS ANGELO process sensors. Original imports from Germany. Welcome inquiries and orders from users.