Hydac sensorInstalled inside the accelerator pedal, it can detect the position of the accelerator pedal at any time. Using Hydac sensors, the accelerator pedal contains two position sensors inside; Adopt redundant control. The accelerator pedal position sensor feeds back the signal to EMS, and the EMS system controls the opening angle of the throttle valve to achieve engine acceleration.

Hydac sensors consist of two parts: sensing components and conversion components. Some semiconductor sensing components can directly output electrical signals, forming the sensor itself. There are many types of sensitive components, and in terms of their principle of sensing external information, they can be divided into ① physical categories, based on physical effects such as force, heat, light, electricity, magnetism, and sound. ② Chemistry is based on the principles of chemical reactions. ③ Biological class, based on molecular recognition functions such as enzymes, antibodies, and hormones. Usually, Hydac sensors can be classified into thermal sensors, photosensitive sensors, gas sensors, force sensors, magnetic sensors, humidity sensors, sound sensors, radiation sensors, color sensors, and taste sensors based on their basic sensing functions (some have also classified sensors into 46 categories).

Hydac sensors are mainly composed of thermistor components. There are many types of thermistor components available in the market, including bimetallic strips, copper thermistors, platinum thermistors, thermocouples, and semiconductor thermistors. Using semiconductor thermistor as the detection elementHydac sensorWidely used, this is because semiconductor thermistors have the characteristics of small size, high sensitivity, and high accuracy within the allowable working conditions of the components, and the manufacturing process is simple and the price is low.

How to choose Hydac sensors:

Firstly, it is necessary to clarify the type of liquid being tested and understand whether its chemical properties are toxic, highly corrosive, or contaminated. If the medium of the measured liquid will adhere to the Hydac sensor or if the liquid viscosity is too high or opaque, it is recommended to use non-contact measurement. If the medium is a conventional acid-base solution, water, oil, etc., contact measurement can be used.

With the development of society and technological progress, many outdated liquid level measurement sensors have been eliminated. Hydac sensors that meet certain requirements for measurement technology, measurement speed, and accuracy can survive in the era of the Internet of Things. In non-contact measurement, ultrasonic sensors are used; Hydac sensors are used for contact measurement.

Choosing between a Hydac sensor or a liquid level switch depends on one's actual situation, and in general, the two can be used interchangeably.Hydac sensorThere are many types, and it can be difficult to choose. Based on the actual situation and measurement range, determine how to choose the Hydac sensor type.