zhonghe ZH3000 Φ 25 eddy current sensor differential expansion measurement probe for steam turbine

The DWQZ series eddy current sensor consists of three parts: DWQZ probe, DWQZ extension cable, and DWQZ preamplifier.

DWQZ series probes

The probe consists of an inductor, a protective cover, a stainless steel housing, a high-frequency cable, a high-frequency connector, etc. Depending on the measurement range, probes with different diameter specifications (such as Φ 8mm, Φ 11mm, Φ 25mm) can be selected; According to different installation requirements, different installation methods (such as forward installation, reverse installation, non threaded) and probes with cable lengths of 1m or 0.5m can be selected.

DWQZ series extension cable

Both ends of the extension cable are equipped with SMA self-locking plugs, and one end is equipped with an oil resistant protective sleeve, specifically designed to protect the self-locking plug from oil contaminated media and improve system reliability. The length of extension cables can be divided into four types: 4m, 4.5m, 8m, and 8.5m.

DWQZ series preamplifier

The preamplifier is the core part of the system, which includes the oscillation, linear detection, filtering, linear compensation, amplification and other circuits of the entire sensor system. Together with extension cables and probes, it forms various specifications of DWQZ eddy current sensors. According to the diameter specifications of the probe used, the DWQZ preamplifier is divided into three specifications: Φ 8mm, Φ 11mm, and Φ 25mm. Based on the total length of the system cable (probe cable length+extension cable length), each specification is further divided into two types: 5m and 9m.

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Zhonghe ZH3000 Φ 25 eddy current sensor differential expansion measurement probe for steam turbine Images