3500/05-01-02-05-00-01近場(chǎng)探頭是一種傳感器，用于測(cè)量電磁場(chǎng)的強(qiáng)度、方向和頻率等參數(shù)。這種傳感器內(nèi)部包含一組線圈，當(dāng)靠近磁場(chǎng)源時(shí)，磁場(chǎng)會(huì)穿過線圈并導(dǎo)致線圈內(nèi)部的電路發(fā)生變化，從而產(chǎn)生電動(dòng)勢(shì)。這個(gè)電動(dòng)勢(shì)的大小和方向可以用來確定磁場(chǎng)的強(qiáng)度和方向。
近場(chǎng)探頭通常被應(yīng)用于無線電、通信、雷達(dá)、天線、電磁兼容性等領(lǐng)域的測(cè)試和測(cè)量，還可以用于電磁波的輻射和吸收等研究。此外，在電子器件的設(shè)計(jì)和測(cè)量中，近場(chǎng)探頭也發(fā)揮著重要作用。例如，在電路板測(cè)試中，近場(chǎng)探頭可以通過測(cè)量輻射和傳導(dǎo)信號(hào)的變化來確定故障的位置或原因。
近場(chǎng)探頭的工作原理基于法拉第電磁感應(yīng)定律，即當(dāng)磁通量變化時(shí)，會(huì)在導(dǎo)體中產(chǎn)生電動(dòng)勢(shì)。在醫(yī)學(xué)領(lǐng)域，近場(chǎng)探頭也用于生物電信號(hào)的檢測(cè)和研究，如心電圖和腦電圖的實(shí)時(shí)監(jiān)測(cè)和記錄。
在選擇和使用近場(chǎng)探頭時(shí)，需要考慮探頭的類型、適用范圍以及保護(hù)和穩(wěn)定性等因素。例如，不同類型的探頭適用于不同的信號(hào)類型和頻率范圍，如磁場(chǎng)探頭、電場(chǎng)探頭和諧波探頭等。同時(shí)，探頭的使用還需要注意保護(hù)，以確保測(cè)量的準(zhǔn)確性和穩(wěn)定性。
總之，近場(chǎng)探頭作為一種傳感器，在多個(gè)領(lǐng)域中都有廣泛的應(yīng)用，是電磁場(chǎng)測(cè)量和電子設(shè)備測(cè)試的重要工具。

330102-00-28-05-02-05

3500/05-01-02-05-00-01 A near-field probe is a sensor used to measure parameters such as the intensity, direction and frequency of an electromagnetic field. This sensor contains a set of coils inside, and when near a magnetic field source, the magnetic field passes through the coil and causes the circuit inside the coil to change, creating an electromotive force. The magnitude and direction of this electromotive force can be used to determine the strength and direction of the magnetic field.
The near-field probe is usually used in the test and measurement of radio, communication, radar, antenna, electromagnetic compatibility and other fields, and can also be used in the radiation and absorption of electromagnetic waves. In addition, near-field probes also play an important role in the design and measurement of electronic devices. For example, in circuit board testing, near-field probes can determine the location or cause of a fault by measuring changes in radiation and conducted signals.
The working principle of the near-field probe is based on Faraday’s law of electromagnetic induction, which states that when the magnetic flux changes, an electromotive force is created in the conductor. In the medical field, near-field probes are also used for the detection and research of bioelectrical signals, such as the real-time monitoring and recording of electrocardiograms and electroencephalograms.
When selecting and using near-field probes, factors such as the type of probe, application range, and protection and stability need to be considered. For example, different types of probes are suitable for different signal types and frequency ranges, such as magnetic field probes, electric field probes, and harmonic probes. At the same time, the use of the probe also needs to pay attention to protection to ensure the accuracy and stability of the measurement.
In short, as a kind of sensor, near field probe has a wide range of applications in many fields, and is an important tool for electromagnetic field measurement and electronic equipment testing.

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