Sensor static characteristic parameters indicators ⒈ Sensitivity Sensitivity refers to the increment and input ratio sensor output and input x of y steady state, or the output y of the ratio x increments, with k expressed as k = dY / The minimum amount of change to be measured dX⒉ resolution sensor within a predetermined measurement range can be detected is called the resolution. ⒊ measurement range and the range is within the allowable error limit is the lower limit of the range to the upper limit of measurement is known as a measuring range. ⒋ linearity (nonlinear error) under specified conditions, the sensor calibration curve fitting with the largest percentage deviation from a straight line between full-scale output value is called the linearity or non-linear error. ⒌ Hysteresis Hysteresis is under the same operating conditions, is inconsistent with the degree of anti-stroke characteristic stroke characteristic of the sensor. ⒍ Repeatability Repeatability is under the same operating conditions, the input in the same direction over the entire measuring range continuously variable characteristic curve obtained several inconsistencies. ⒎ zero drift and drift sensor when no input or input another value car level sensor manufacturers, at regular intervals, the input value deviates from the percentage of the maximum deviation of the full scale of the original indication zero drift. The temperature is increased by 1 ℃, the percentage of the maximum deviation of full scale sensor output value, known as drift. Automotive Sensors - Flow sensors are used to measure engine air flow and fuel flow. Measuring air flow for engine control system to determine combustion conditions, control air-fuel ratio, start, ignition and so on. Rotary wing air flow sensor chip (blade), scroll Carmen, the hot wire, hot-film four types. Chip simple rotary wing (vane type) air flow meter structure, measurement accuracy is low quality auto level sensor measured air flow required for temperature compensation; Karman vortex air flow meter with no moving parts, reflecting the sensitivity, precision is better than high, also require temperature compensation; high hot air flow measurement accuracy without temperature compensation, but are vulnerable to the impact of fluctuating gas, easily broken wire; hot film air flow meter and the hot wire air flow meter measuring the same principle, but small volume, suitable for mass production, low cost. The main technical indicators for air flow sensor: Working range of 0.11 to 103 m3 / min, Operating temperature -40 ℃ ~ 120 ℃ auto level sensor, precision ≤1%. Fuel flow sensor for detecting the fuel flow, the main water wheel and recirculating ball type, the dynamic range of 0 ~ 60kg / h, working temperature -40 ℃ ~ 120 ℃, accuracy of 1%, response time <10ms. Auto level sensor supplier, Shaanxi Automobile water level sensor, Xinfeng Xinxiang City, Xinfeng Sensing Technology Co., Ltd. to provide clean. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) strong, credible, in Xinxiang sensor industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead Xinfeng innovative ideas into the brilliant and you work for a better future!