Double-fiber ball-shared coupling micro-measuring-force targeting sensor with end face micro-structure

[0028] A dual-fiber co-spherical coupling micro-measurement force aiming sensor with an end-face microstructure, the sensor consists of a laser 1, a beam expander collimator 2, a fiber coupling lens 3, a catheter 4, a probe 8, a microscope objective 10, CCD camera 11 and computer 12 constitute, and data line is communicated with CCD camera 11 and computer 12, and probe 8 is placed in the microhole 9 to be measured; The outgoing fiber 7 with a microstructure, the coupler 6 is respectively connected to the incident fiber 5 and the exiting fiber 7 with a tapered end surface microstructure, the coupler 6 is used as the contact point of the probe 8, and the beam emitted by the laser 1 is collimated by expanding the beam The mirror 2 and the fiber coupling lens 3 enter the incident fiber 5, the light beam is introduced into the coupler 6 through the incident fiber 5, and then is exported by the outgoing optical fiber 7 with a tapered end microstructure, and the exported light beam enter

[0033] The probe 8 is composed of an incident optical fiber 5, a coupler 6 and an outgoing optical fiber 13 with an aspherical end surface microstructure, and the aspherical end surface microstructure improves the signal-to-noise ratio of the detection signal. Other parts and working process of this embodiment are all the same as Embodiment 1.

[0035] The probe 8 is composed of an incident optical fiber 5, a coupler 6 and an outgoing optical fiber 14 with a spherical end surface microstructure, and the spherical end surface microstructure improves the signal-to-noise ratio of the detection signal. Other parts and working process of this embodiment are all the same as Embodiment 1.