Abstract: Disclosed in an apparatus for measuring positively-sensed force of an electrical connector, comprising: a base plate; at least one L-shaped pads, the two L-shaped pads being each affixed to the base plate at an upper end thereof in such an arrangement that ends thereof oppose each other; an elastically deformable sheet provided between the two L-shaped pads, the elastically deformable sheet being affixed to the base plate and formed with a projective measuring region at end thereof; and at least one strain gauge inertly affixed to the elastically deformable sheet, the strain gauge beingconnected to a signal transmitting device that outputs strain value of the strain gauge to a signal amplifying device for display purpose in response to deformation of the elastically deformable sheet.

Abstract: A calibration instrument for micro-positively-sensed force, including: a platform support stand having a base with a vise thereon for clamping an elastically deformable strain measuring device to be calibrated, a micro-distance meter at an upper portion of the platform support, a probe connected to and positioned beneath the micro-distance meter, displacement of the probe in vertical direction being adjustable through the micro-distance meter, the probe having a load cell. The load cell and elastically deformable strain measuring device to be calibrated are each connected to a signal transmitting device which outputs the signals thererof to a signal amplifying device so as to display the signals being measured. And, a method for calibrating a calibration instrument for micro-positively-sensed force that uses the calibration instrument to calibrate a precision measuring device.