Instrument for monitoring physical parameters of temperature and pressure

An instrument for monitoring a physical parameter consisting of temperature or pressure, comprising an elastic sensor displaceable as a function of the physical parameter being monitored, a belt extending over at least two spaced rollers and coupled to the elastic sensor in such a manner as to be displaced by an amount proportional to the displacement of the elastic sensor, said belt having a characteristic which changes along the length thereof, and sensing means responsive to said characteristic of said belt for producing an output signal which varies as a predetermined function of the physical parameter being monitored, said sensing means including a plurality of sensors displaceable independently of one another.

An instrument for monitoring a physical parameter consisting of temperature or pressure, comprising an elastic sensor displaceable as a function of the physical parameter being monitored, a belt extending over at least two spaced rollers and coupled to the elastic sensor in such a manner as to be displaced by an amount proportional to the displacement of the elastic sensor, said belt having a characteristic which changes along the length thereof, and sensing means responsive to said characteristic of said belt for producing an output signal which varies as a predetermined function of the physical parameter being monitored, said sensing means including an induction coil formed with an air gap through which at least a portion of said belt passes, said characteristic of said belt being a property selected from the group consisting of para- or ferro- magnetic properties varying along the length of said belt.

An instrument for monitoring a physical parameter consisting of temperature or pressure, comprising an elastic sensor displaceable as a function of the physical parameter being monitored, a belt extending over at least two spaced rollers and coupled to the elastic sensor in such a manner as to be displaced by an amount proportional to the displacement of the elastic sensor, said belt having a characteristic which changes along the length thereof, and sensing means responsive to said characteristic of said belt for producing an output signal which varies as a predetermined function of the physical parameter being monitored, and including a marker disposed on said belt and, in conjunction with a fixed scale, serving to indicate the physical parameter that is measured.

An instrument for monitoring a physical parameter consisting of temperature or pressure, comprising an elastic sensor displaceable as a function of the physical parameter being monitored, a belt extending over at least two spaced rollers and coupled to the elastic sensor in such a manner as to be disposed by an amount proportional to the displacement of the elastic sensor, said belt having a characteristic which changes along the length thereof, and sensing means responsive to said characteristic of said belt for producing an output signal which varies as a predetermined function of the physical parameter being monitored, and including a scale printed on said belt, said scale, in conjunction with a read-off window located in front of said belt, forming a digital display.