An analog sensor (100, 800, 900), comprising: a deformation part generating a deformation according to a force sensed by the analog sensor; at least one strain gauge connected to the deformation part and generating a change in the electrical resistance according to the deformation; at least one strain gauge bridge in connection with the at least one strain gauge and transferring the changes in the electrical resistance of the at least one strain gauge to output a first analog signal; an analog-to-digital conversion module (108, 808, 908) connected to an output of the at least one strain gauge bridge, receiving the first analog signal from the at least one strain gauge bridge and converting the first analog signal to a first digital signal, where the first analog signal is an analog signal representative of the force; and an analog output port for outputting a second analog signal; a signal processing and output circuit (110, 810, 910), the signal processing and output circuit (110, 810, 910) being connected between the output of the analog-to-digital conversion module (108, 808, 908) and the analog output port characterised in that the signal processing and output circuit (110, 810, 910) comprises: a compensation module (312, 412, 812, 912) connected to the output of the analog-to-digital conversion module (108, 808, 908) and compensating the first digital signal to generate a second digital signal representative of an amount of analog signal to be compensated; a digital-to-analog conversion module (314, 814) connected to the output of the compensation module (312, 812), receiving the second digital signal and converting it into a third analog signal, or a pulse width modulation module (415, 915) connected to the output of the compensation module (412, 912) and pulse modulating the amount of analog signal to be compensated with a square wave to generate a fourth analog signal; and an operational amplification circuit (320, 820) connected to the output of the strain gauge bridge and the output of the digital-to-analog conversion module (314, 814) of the analog sensor, receiving the first analog signal and the third analog signal, and adding the first analog signal and the third analog signal to generate the second analog signal, thereby converting the first digital signal into the second analog signal, or an add circuit (421, 921) connected to the output of the strain gauge bridge and the output of the pulse width modulation module (415, 915) of the analog sensor, receiving the first analog signal and the fourth analog signal, and adding the first analog signal and the fourth analog signal to generate the second analog signal, thereby converting the first digital signal into the second analog signal. a deformation part generating a deformation according to a force sensed by the analog sensor; at least one strain gauge connected to the deformation part and generating a change in the electrical resistance according to the deformation; at least one strain gauge bridge in connection with the at least one strain gauge and transferring the changes in the electrical resistance of the at least one strain gauge to output a first analog signal; an analog-to-digital conversion module (108, 808, 908) connected to an output of the at least one strain gauge bridge, receiving the first analog signal from the at least one strain gauge bridge and converting the first analog signal to a first digital signal, where the first analog signal is an analog signal representative of the force; and an analog output port for outputting a second analog signal; a signal processing and output circuit (110, 810, 910), the signal processing and output circuit (110, 810, 910) being connected between the output of the analog-to-digital conversion module (108, 808, 908) and the analog output port a compensation module (312, 412, 812, 912) connected to the output of the analog-to-digital conversion module (108, 808, 908) and compensating the first digital signal to generate a second digital signal representative of an amount of analog signal to be compensated; a digital-to-analog conversion module (314, 814) connected to the output of the compensation module (312, 812), receiving the second digital signal and converting it into a third analog signal, or a pulse width modulation module (415, 915) connected to the output of the compensation module (412, 912) and pulse modulating the amount of analog signal to be compensated with a square wave to generate a fourth analog signal; and an operational amplification circuit (320, 820) connected to the output of the strain gauge bridge and the output of the digital-to-analog conversion module (314, 814) of the analog sensor, receiving the first analog signal and the third analog signal, and adding the first analog signal and the third analog signal to generate the second analog signal, thereby converting the first digital signal into the second analog signal, or an add circuit (421, 921) connected to the output of the strain gauge bridge and the output of the pulse width modulation module (415, 915) of the analog sensor, receiving the first analog signal and the fourth analog signal, and adding the first analog signal and the fourth analog signal to generate the second analog signal, thereby converting the first digital signal into the second analog signal.