In our previous published research we have studied the applications of the ferrolens for the observation and qualitative analysis of non-homogeneous magnetic fields. Latest developments over the last few years of the ferrolens increased multifold the sensitivity of this device allowing it to display magnetic fields as low as 10mT in strength and therefore it is possible now to observe also the homogeneous (i.e. straight parallel magnetic flux lines of uniform density in space) magnetic field existing inside air solenoids and between N-S poles of two attracting separated permanent magnets. We present and analyze herein these novel observations of homogeneous magnetic fields with the ferrolens and as a potential new application of this device. The ferrolens can now display the projected magnetic field on air from a distance without needing to be in physical contact with the field source. Experiments were carried out to demonstrate these new capabilities of the ferrolens as a nanomagnetic flux viewer, real-time physical device and scientific qualitative tool. We compare the geometry of magnetic fields of condensed matter ferromagnets with that of magnetic fields inside electrical air solenoids. Specifically, the homogeneous field between two N-S attracting magnets at a distance as well as inside air solenoids and Helmholtz coils and also the non-homogeneous total field of single dipole permanent magnets were observed using a latest generation very sensitive ferrolens. The unique feature of this magneto optic fluid thin film physical device is that it can display discrete magnetic flux lines of the macroscopic field. Also we show how the ferrolens can be used to detect qualitatively the symmetry center of a non ideal homogeneous magnetic field.

在我们之前发表的研究中，我们研究了铁磁在非均匀磁场的观察和定性分析中的应用。铁磁在过去几年的最新发展使该设备的灵敏度提高了数倍，使其能够显示强度低至 10mT 的磁场，因此现在也可以观察到均匀的（即均匀密度的平行直线磁通线）在空间中）存在于空气螺线管内部和两个相互吸引的分离永磁体的 NS 极之间的磁场。我们在此展示并分析了这些对铁磁均匀磁场的新观察，并将其作为该设备的潜在新应用。铁磁透镜现在可以从远处在空气中显示投射的磁场，而无需与场源进行物理接触。进行了实验以证明铁磁透镜作为纳米磁通量观察器、实时物理设备和科学定性工具的这些新功能。我们将凝聚态铁磁体的磁场几何形状与电子空气螺线管内的磁场几何形状进行比较。具体而言，使用最新一代非常灵敏的铁磁观察到两个相距较远的 NS 吸磁体之间以及内部空气螺线管和亥姆霍兹线圈之间的均匀场，以及单偶极永磁体的非均匀总场。这种磁光流体薄膜物理器件的独特之处在于它可以显示宏观场的离散磁通量线。我们还展示了铁磁透镜如何用于定性检测非理想均匀磁场的对称中心。