Reasonable choice of Hall current sensor is to achieve the purpose of practical, economical, safe and convenient according to the actual needs and possibilities. To this end, it is necessary to have a comprehensive understanding of the purpose of the sensor measurement, the object of measurement, the conditions of use, etc.; this is the premise of considering the problem.
First, determine the type of Hall current sensor based on the measurement object and the conditions of use.
As we all know: the same Hall current sensor. It can be used to measure multiple measurements, and the same measured Hall current sensor with multiple principles is available. Before performing a specific measurement, it is first appropriate to analyze and determine which principle or class of Hall current sensors are used. This requires a survey of all aspects related to the operation of the Hall current sensor. To understand the characteristics being measured: such as the state, nature of the measurement, the range of measurement, the amplitude and frequency band, the speed of measurement, time, accuracy requirements, magnitude of overload and frequency of occurrence.
The second is to understand the conditions of use, which consists of two aspects:
(1) On-site environmental conditions: such as temperature, humidity, air pressure, energy, light, dust, vibration, noise, electromagnetic field and radiation interference;
(2) Existing basic conditions: such as financial resources (capacity), material resources (supporting facilities), manpower (technical level), etc. There are many aspects and things to consider when choosing a Hall current sensor. In practice, it is impossible or necessary to meet all the requirements. Designers should proceed from the overall purpose and requirements of the system for the use of Hall current sensors, comprehensively analyze the primary and secondary, weigh the pros and cons, seize the important aspects, and highlight important issues to give priority to. Based on this foundation seven. The specific problem of the Hall current sensor type can be clearly selected: the size of the range and the amount of overload; the weight and volume of the Hall current sensor measured by the object or position being measured; the way of measurement is contact.
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