Mechanical means for transferring the output of a sensing member Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting Transducers not specially adapted for a specific variable

GPHYSICS G01Measuring instruments G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS TARIFF METERING APPARATUS MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR

G01D5/00Mechanical means for transferring the output of a sensing member Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting Transducers not specially adapted for a specific variable

G01D5/02using mechanical means G01D5/04using levers using cams using gearing G01D5/06acting through a wall or enclosure G01D5/08Reducing the effects of friction G01D5/10Applying external forces to increase force available for operation of indicating or recording part G01D5/12using electric or magnetic means G01D5/125characterised by a first part whose movement represents the measuring value, and by a second part which is moved by an external force in order to follow the movement of the first part G01D5/14influencing the magnitude of a current or voltage G01D5/142using Hall-effect devices G01D5/145influenced by the relative movement between the Hall device and magnetic fields G01D5/147influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other G01D5/16by varying resistance G01D5/165by relative movement of a point of contact or actuation and a resistive track G01D5/1655more than one point of contact or actuation on one or more tracks G01D5/18by varying effective impedance of discharge tubes or semiconductor devices G01D5/20by varying inductance G01D5/2006by influencing the self-induction of one or more coils G01D5/2013by a movable ferromagnetic element G01D5/202by movable a non-ferromagnetic conductive element G01D5/2026constituting a short-circuiting element G01D5/2033controlling the saturation of a magnetic circuit by means of a movable element G01D5/204by influencing the mutual induction between two or more coils G01D5/2046by a movable ferromagnetic element G01D5/2053by a movable non-ferromagnetic conductive element G01D5/206constituting a short-circuiting element G01D5/2066by movement of a single coil with respect to a single other coil G01D5/2073by movement of a single coil with respect to two or more coils G01D5/208using polyphase currents G01D5/2086by movement of two or more coils with respect to two or more other coils G01D5/2093using polyphase currents G01D5/22differentially influencing two coils G01D5/2208by influencing the self-induction of the coils G01D5/2216by a movable ferromagnetic element G01D5/2225by a movable non-ferromagnetic conductive element G01D5/2233constituting a short-circuiting element G01D5/2241by controlling the saturation of a magnetic circuit by means of a movable element G01D5/225by influencing the mutual induction between the two coils G01D5/2258by a movable ferromagnetic element G01D5/2266especially adapted circuits therefor G01D5/2275by a movable non-ferromagnetic conductive element G01D5/2283constituting a short-circuiting element G01D5/2291Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils G01D5/24by varying capacitance G01D5/2405by varying dielectric G01D5/241by relative movement of capacitor electrodes G01D5/2412by varying overlap G01D5/2415adapted for encoders G01D5/2417by varying separation G01D5/242by carrying output of an electrodynamic device G01D5/243influencing the phase or frequency of ac G01D5/244influencing characteristics of pulses or pulse trains generating pulses or pulse trains G01D5/24404Interpolation using high frequency signals G01D5/24409Interpolation using memories G01D5/24414Encoders having selectable interpolation factors G01D5/24419Interpolation not coverd by groups G01D5/24404, G01D5/24409 or G01D5/24414 G01D5/24423Mounting means or means for restraining during shipping G01D5/24428Error prevention G01D5/24433by mechanical means G01D5/24438Special design of the sensing element or scale G01D5/24442by mounting means G01D5/24447by energy backup G01D5/24452Calibration G01D5/24457Failure detection G01D5/24461by redundancy or plausibility G01D5/24466Comparison of the error value to a threshold G01D5/24471Error correction G01D5/24476Signal processing G01D5/2448Correction of gain, threshold, offset or phase control G01D5/24485using other sensors G01D5/2449using hard-stored calibration data G01D5/24495using previous values G01D5/245using a variable number of pulses in a train G01D5/2451Incremental encoders G01D5/2452incorporating two or more tracks having an (n, n+1, ...) relationship G01D5/2454Encoders incorporating incremental and absolute signals G01D5/2455with incremental and absolute tracks on the same encoder G01D5/2457Incremental encoders having reference marks G01D5/2458with incremental and absolute tracks on separate encoders G01D5/246by varying the duration of individual pulses G01D5/247using time shifts of pulses G01D5/248by varying pulse repetition frequency G01D5/249using pulse code G01D5/2492Pulse stream G01D5/2495Pseudo-random code G01D5/2497Absolute encoders G01D5/25Selecting one or more conductors or channels from a plurality of conductors or channels G01D5/251one conductor or channel G01D5/2515with magnetically controlled switches G01D5/252a combination of conductors or channels G01D5/2525with magnetically controlled switches G01D5/26characterised by optical transfer means G01D5/262with optical projection of a pointer or a scale G01D5/264Mechanical constructional elements therefor ; Mechanical adjustment thereof G01D5/266by interferometric means G01D5/268using optical fibres G01D5/28with deflection of beams of light G01D5/285using a movable mirror G01D5/30the beams of light being detected by photocells G01D5/305controlling the movement of a following part G01D5/32with attenuation or whole or partial obturation of beams of light G01D5/34the beams of light being detected by photocells G01D5/341controlling the movement of a following part G01D5/342the sensed object being the obturating part G01D5/344using polarisation G01D5/345Polarising encoders G01D5/347using displacement encoding scales G01D5/34707Scales; Discs G01D5/34715Scale reading or illumination devices G01D5/34723involving light-guides G01D5/3473Circular or rotary encoders G01D5/34738Axles; Driving or coupling means G01D5/34746Linear encoders G01D5/34753Carriages; Driving or coupling means G01D5/34761Protection devices G01D5/34769Sealing means G01D5/34776Absolute encoders with analogue or digital scales G01D5/34784with only analogue scales or both analogue and incremental scales G01D5/34792with only digital scales or both digital and incremental scales G01D5/353influencing the transmission properties of an optical fibre G01D5/35303using a reference fibre G01D5/35306using an interferometer arrangement G01D5/35309using multiple waves interferometer G01D5/35312using a Fabry Perot G01D5/35316using a Bragg gratings G01D5/35319using other multiple wave interferometer G01D5/35322using interferometer with one loop with several directions of circulation of the light G01D5/35325using interferometer with two arms in reflection G01D5/35329using interferometer with two arms in transmission G01D5/35332using other interferometers G01D5/35335Aspects of emitters or receivers used by an interferometer in an optical fibre sensor arrangement G01D5/35338using other arrangements than interferometer arrangements G01D5/35341Sensor working in transmission G01D5/35345using Amplitude variations to detect the measured quantity G01D5/35348using stimulated emission to detect the measured quantity G01D5/35351using other means to detect the measured quantity G01D5/35354Sensor working in reflection G01D5/35358using Backscattering to detect the measured quantity G01D5/35361using inelastic backscattering G01D5/35364using elastic backscattering G01D5/35367using reflected light other than backscattered to detect the measured quantity G01D5/3537Optical fibre sensor using a particular arrangement of the optical fibre itself G01D5/35374Particular layout of the fiber G01D5/35377Means for amplifying or modifying the measured quantity G01D5/3538using a particular type of fiber G01D5/35383using multiple sensor devices using multiplexing techniques G01D5/35387using wavelength division multiplexing G01D5/3539using time division multiplexing G01D5/35393using frequency division multiplexing G01D5/35396using other forms of multiplexing G01D5/36Forming the light into pulses G01D5/363Direction discrimination G01D5/366Particular pulse shapes G01D5/38by diffraction gratings G01D5/39Scanning a visible indication of the measured value and reproducing this indication at the remote place G01D5/40specially adapted for use with infra-red light G01D5/42using fluid means G01D5/425characterised by a first part whose movement represents the measuring value, and by a second part which is moved by an external force in order to follow the movement of the first part G01D5/44using jets of fluid G01D5/46by deflecting or throttling the flow G01D5/48using wave or particle radiation means G01D5/485using magnetostrictive devices G01D5/50derived from a radioactive source G01D5/52detected by a counter tube G01D5/54using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48 G01D5/56using electric or magnetic means G01D5/58using optical means G01D5/60using fluid means G01D5/62using wave or particle radiation means not covered by group G01D5/58