ELEKTROKOVZNOJM electrical components Germany ELEKTROKOVZNOJM model ELEKTROKOVZNOJM price

ELEKTROKOVZNOJM electrical components are linear devices based on metal induction. The role of a sensor is to convert various measured physical quantities into electrical signals. In production processes, displacement measurement is generally divided into two types: measuring physical dimensions and mechanical displacement. Depending on the form of transformation of the measured variable, displacement sensors can be divided into analog and digital types. Analog types can be further divided into property-based and structural types. Commonly used displacement sensors are mostly analog structural types, including potentiometric displacement sensors, inductive displacement sensors, synchros, capacitive displacement sensors, eddy current displacement sensors, Hall effect displacement sensors, etc. An important advantage of digital displacement sensors is that they facilitate direct input of signals into computer systems. Displacement is a quantity related to the movement of an object's position during motion, and the scope of displacement measurement methods is quite extensive. Small displacements are typically detected using strain gauge, inductive, differential transformer, eddy current, and Hall sensors. Large displacements are commonly measured using sensing technologies such as inductosyns, optical gratings, capacitive gratings, and magnetic gratings. Among these, optical grating sensors are increasingly widely used in industries such as machine tool processing and testing instruments due to advantages such as ease of digitization, high precision (current highest resolution can reach the nanometer level), strong anti-interference capability, absence of human reading errors, convenient installation, and reliable use.

ELEKTROKOVZNOJM electrical component classification

1. Classification by relay external dimensions: (1) miniature relays, (2) ultra-miniature relays, (3) small miniature relays. 2. Classification by relay load: (1) micro-power relays, (2) low-power relays, (3) medium-power relays, (4) high-power relays. 14. Classification by relay protection characteristics: (1) Sealed relays: Relays where contacts and coils are sealed inside a cover using welding or other methods, isolated from the surrounding medium, resulting in a low leakage rate. (2) Enclosed relays: Relays where contacts and coils are protected by being enclosed in a housing (non-sealed). (3) Open relays: Relays that do not use a protective cover to protect contacts and coils. Among the above relays, electromagnetic relays and reed relays are the most commonly used in electronic fabrication.

ELEKTROKOVZNOJM electrical component characteristics

The static characteristics of a sensor refer to the relationship between the output and input quantities for static input signals. Since the input and output quantities are independent of time in this case, their relationship, i.e., the static characteristics of the sensor, can be described by an algebraic equation without time variables, or by a characteristic curve plotted with the input quantity as the abscissa and the corresponding output quantity as the ordinate. The main parameters characterizing the static characteristics of a sensor include: linearity, sensitivity, hysteresis, repeatability, drift, etc. (1) Linearity: Refers to the degree to which the actual relationship curve between the sensor's output and input deviates from the fitted straight line. It is defined as the ratio of the maximum deviation between the actual characteristic curve and the fitted straight line over the full scale range to the full-scale output value. (2) Sensitivity: Sensitivity is an important indicator of a sensor's static characteristics. It is defined as the ratio of the increment in the output quantity to the corresponding increment in the input quantity that causes it. Use S to denote sensitivity. (3) Hysteresis: Hysteresis is the phenomenon where the input-output characteristic curves do not coincide when the input quantity changes from small to large (forward stroke) and from large to small (reverse stroke). For the same magnitude of input signal, the output signals for the forward and reverse strokes are not equal; this difference is called the hysteresis error. (4) Repeatability: Repeatability refers to the degree of inconsistency in the characteristic curves obtained when the input quantity undergoes continuous multiple full-scale changes in the same direction. (5) Drift: Sensor drift refers to the phenomenon where the sensor's output changes over time while the input remains constant. There are two main causes of drift: one is the sensor's own structural parameters; the other is the surrounding environment (such as temperature, humidity, etc.). (6) Resolution: When the sensor's input increases slowly from a non-zero value, an observable change in output occurs after exceeding a certain increment; this input increment is called the sensor's resolution, i.e., the minimum input increment. (7) Threshold: When the sensor's input increases slowly from zero, an observable change in output occurs after reaching a certain value; this input value is called the sensor's threshold voltage.

ELEKTROKOVZNOJM electrical component performance

1. Protection characteristics: When the impact strength of the shock source does not exceed the specified value, the clamping voltage of the varistor must not exceed the impulse withstand voltage that the protected object can endure. 2. Impact resistance characteristics: The varistor itself must be able to withstand the specified impulse current, impulse energy, and the average power when multiple impulses occur sequentially. 3. Life characteristics have two aspects: one is the continuous operating voltage life, meaning the varistor should reliably operate for a specified time (in hours) under specified ambient temperature and system voltage conditions. The second is impulse life, meaning it can reliably withstand a specified number of impulses. 7. After the varistor is integrated into the system, in addition to acting as a "safety valve" for protection, it introduces some additional effects, known as "secondary effects," which should not degrade the normal operating performance of the system. The main factors to consider at this stage are three: first, the inherent capacitance of the varistor; second, the leakage current under system voltage; and third, the influence of the varistor's nonlinear current coupling through the source impedance on other circuits.

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