WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

G01D　MEASURING 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 (means structurally associated with lightning or other over-voltage discharging apparatus for recording the operation thereof G01R; displaying information in general G09F; recording in a way which requires playback through a transducer G11B)

G01D 1/00 Measuring arrangements giving results other than momentary value of variable, of general application (G01D 3/00 takes precedence; in tariff metering apparatus G01D 4/00; transducers not specially adapted for a specific variable G01D 5/00; computing G06)

G01D 1/02 ・giving mean values, e.g. root means square values (measuring root mean square values of currents or voltages G01R 19/02)

G01D 1/04 ・giving integrated values (giving mean values G01D 1/02)

G01D 1/06 ・・by intermittent summation

G01D 1/08 ・・・over fixed periods of time

G01D 1/10 ・giving differentiated values

G01D 1/12 ・giving a maximum or minimum of a value

G01D 1/14 ・giving a distribution function of a value, i.e. number of times the value comes within specified ranges of amplitude

G01D 1/16 ・giving a value which is a function of two or more values, e.g. product, ratio

G01D 1/18 ・with arrangements for signalling that a predetermined value of an unspecified parameter has been exceeded (G01D 1/14 takes precedence; for a specified parameter, see the subclass relevant to this parameter, e.g. level of a liquid exceeded G01F, temperature exceeded G01K)

G01D 3/00 Indicating or recording apparatus with provision for the special purposes referred to in the subgroups

G01D 3/02 ・with provision for altering or correcting the law of variation

G01D 3/021 ・・{using purely analogue techniques}

G01D 3/022 ・・{having an ideal characteristic, map or correction data stored in a digital memory}

G01D 3/024 ・・for range change; Arrangements for substituting one sensing member by another

G01D 3/028 ・mitigating undesired influences, e.g. temperature, pressure

G01D 3/032 ・・affecting incoming signal, e.g. by averaging; gating undesired signals

G01D 3/036 ・・on measuring arrangements themselves

G01D 3/0365 ・・・{the undesired influence being measured using a separate sensor, which produces an influence related signal}

G01D 3/06 ・with provision for operation by a null method

G01D 3/063 ・・{Comparing the measuring value with a reference value which periodically or incidentally scans the measuring range}

G01D 3/066 ・・{Balancing a force which represents the measuring value, by means of a reference force (force measuring per se G01L)}

G01D 3/08 ・with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown

G01D 3/10 ・with provision for switching-in of additional or auxiliary indicators or recorders

G01D 4/00 Tariff metering apparatus (tariff meters for measuring the time integral of electric power or current G01R 11/56; in taximeters G07B 13/00; coin-feed mechanisms therefor G07F)

G01D 4/002 ・{Remote reading of utility meters}

G01D 4/004 ・・{Remote reading of utility meters to a fixed location}

G01D 4/006 ・・{Remote reading of utility meters to a non-fixed location, i.e. mobile location}

G01D 4/008 ・{Modifications to installed utility meters to enable remote reading}

G01D 4/02 ・Details

G01D 4/04 ・・Resetting-mechanisms e.g. for indicating members (for mechanical counters G06M 1/28)

G01D 4/06 ・・Arrangement of clutches between driving and indicating member, e.g. of hysteresis clutch (G01B 4/04 takes precedence)

G01D 4/08 ・・Transfer of indication from a counter into a summing counter mechanical counters G06M

G01D 4/10 ・Maximum indicating or recording apparatus, i.e. where the tariff for a period is based on a maximum demand within that period

G01D 4/12 ・・Apparatus for indicating or recording progressive maximum

G01D 4/14 ・・Fixed-demand indicating or recording apparatus, i.e. where indication is made when a predetermined quantity has been consumed during a time interval greater or less than a predetermined time interval

G01D 4/16 ・Apparatus for indicating or recording maximum or minimum load hours

G01D 4/18 ・Apparatus for indicating or recording overconsumption with opposing torque which comes into effect when a predetermined level is exceeded, e.g. subtraction meters

G01D 5/00 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 (G01D 3/00 takes precedence; specially adapted for apparatus giving results other than momentary value of variable G01D 1/00; sensing members, see the relevant subclasses, e.g. of G01, H01; for converting a single current or a single voltage into a mechanical displacement G01R 5/00; specially adapted for high-voltage or high-current measuring arrangements G01R 15/04, G01R 15/14; measuring currents or voltages using digital measurement techniques G01R 19/25; transmission systems for measured values, control or similar signals G08C, e.g. electrical signals G08C 19/00)

G01D 5/02 ・using mechanical means

G01D 5/04 ・・using levers; using cams; using gearing (gearing in general F16)

G01D 5/06 ・・acting through a wall or enclosure, e.g. by bellows, by magnetic coupling (in general F16)

G01D 5/08 ・・Reducing the effects of friction, e.g. by applying vibrations

G01D 5/10 ・・Applying external forces to increase force available for operation of indicating or recording part

G01D 5/12 ・using electric or magnetic means (G01D 5/06 takes precedence)

G01D 5/125 ・・{characterised 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 (this group takes precedence on the following groups)}

G01D 5/14 ・・influencing the magnitude of a current or voltage

G01D 5/142 ・・・{using Hall-effect devices (measuring magnetic variables using Hall-effect or other galvanomagnetic devices G01R 33/06)}

G01D 5/145 ・・・・{influenced by the relative movement between the Hall device and magnetic fields (see G01R 33/06)}

G01D 5/147 ・・・・{influenced 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}

G01D 5/16 ・・・by varying resistance

G01D 5/165 ・・・・by relative movement of a point of contact {or actuation} and a resistive track

G01D 5/1655 ・・・・・{more than one point of contact or actuation on one or more tracks}

G01D 5/18 ・・・by varying effective impedance of discharge tubes or semiconductor devices

G01D 5/20 ・・・by varying inductance, e.g. by a movable armature

G01D 5/2006 ・・・・{by influencing the self-induction of one or more coils (G01D 5/22 takes precedence)}

G01D 5/2013 ・・・・・{by a movable ferromagnetic element, e.g. a core (G01D 5/2033 takes precedence)}

G01D 5/202 ・・・・・{by movable a non-ferromagnetic conductive element (G01D 5/2033 takes precedence)}

G01D 5/2026 ・・・・・・{constituting a short-circuiting element}

G01D 5/2033 ・・・・・{controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet}

G01D 5/204 ・・・・{by influencing the mutual induction between two or more coils (G01D 5/22 takes precedence)}

G01D 5/2046 ・・・・・{by a movable ferromagnetic element, e.g. a core}

G01D 5/2053 ・・・・・{by a movable non-ferromagnetic conductive element}

G01D 5/206 ・・・・・・{constituting a short-circuiting element}

G01D 5/2066 ・・・・・{by movement of a single coil with respect to a single other coil}

G01D 5/2073 ・・・・・{by movement of a single coil with respect to two or more coils}

G01D 5/208 ・・・・・・{using polyphase currents}

G01D 5/2086 ・・・・・{by movement of two or more coils with respect to two or more other coils}

G01D 5/2093 ・・・・・・{using polyphase currents}

G01D 5/22 ・・・・differentially influencing two coils

G01D 5/2208 ・・・・・{by influencing the self-induction of the coils}

G01D 5/2216 ・・・・・・{by a movable ferromagnetic element e.g. a core}

G01D 5/2225 ・・・・・・{by a movable non-ferromagnetic conductive element}

G01D 5/2233 ・・・・・・・{constituting a short-circuiting element}

G01D 5/2241 ・・・・・・{by controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet}

G01D 5/225 ・・・・・{by influencing the mutual induction between the two coils}

G01D 5/2258 ・・・・・・{by a movable ferromagnetic element, e.g. core}

G01D 5/2266 ・・・・・・・{especially adapted circuits therefor (measuring inductance per se G01R 27/2611; measuring transformation ratio or coupling factor of windings per se G01R 29/20)}

G01D 5/2275 ・・・・・・{by a movable non-ferromagnetic conductive element}

G01D 5/2283 ・・・・・・・{constituting a short-circuiting element}

G01D 5/2291 ・・・・・{Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils}

G01D 5/24 ・・・by varying capacitance

G01D 5/2405 ・・・・{by varying dielectric}

G01D 5/241 ・・・・by relative movement of capacitor electrodes

G01D 5/2412 ・・・・・{by varying overlap}

G01D 5/2415 ・・・・・・{adapted for encoders}

G01D 5/2417 ・・・・・{by varying separation}

G01D 5/242 ・・・by carrying output of an electrodynamic device, e.g. a tacho-dynamo

G01D 5/243 ・・influencing the phase or frequency of ac

G01D 5/244 ・・influencing characteristics of pulses or pulse trains; generating pulses or pulse trains

G01D 5/24404 ・・・{Interpolation using high frequency signals}

G01D 5/24409 ・・・{Interpolation using memories}

G01D 5/24414 ・・・{Encoders having selectable interpolation factors}

G01D 5/24419 ・・・{Interpolation not coverd by groups G01D 5/24404, G01D 5/24409 or G01D 5/24414}

G01D 5/24423 ・・・{Mounting means or means for restraining during shipping (G01D 5/244P1F takes precedence)}

G01D 5/24428 ・・・{Error prevention}

G01D 5/24433 ・・・・{by mechanical means}

G01D 5/24438 ・・・・・{Special design of the sensing element or scale}

G01D 5/24442 ・・・・・{by mounting means}

G01D 5/24447 ・・・・{by energy backup}

G01D 5/24452 ・・・・{Calibration}

G01D 5/24457 ・・・{Failure detection}

G01D 5/24461 ・・・・{by redundancy or plausibility}

G01D 5/24466 ・・・・{Comparison of the error value to a threshold}

G01D 5/24471 ・・・{Error correction}

G01D 5/24476 ・・・・{Signal processing (G01D 5/2448 to G01D 5/24495 take precedence)}

G01D 5/2448 ・・・・{Correction of gain, threshold, offset or phase control}

G01D 5/24485 ・・・・{using other sensors}

G01D 5/2449 ・・・・{using hard-stored calibration data}

G01D 5/24495 ・・・・{using previous values}

G01D 5/245 ・・・using a variable number of pulses in a train

G01D 5/2451 ・・・・{Incremental encoders (G01D 5/2454 takes precedence)}

G01D 5/2452 ・・・・・{incorporating two or more tracks having an (n, n+1, ...) relationship}

G01D 5/2454 ・・・・{Encoders incorporating incremental and absolute signals}

G01D 5/2455 ・・・・・{with incremental and absolute tracks on the same encoder}

G01D 5/2457 ・・・・・・{Incremental encoders having reference marks}

G01D 5/2458 ・・・・・{with incremental and absolute tracks on separate encoders}

G01D 5/246 ・・・by varying the duration of individual pulses

G01D 5/247 ・・・using time shifts of pulses

G01D 5/248 ・・・by varying pulse repetition frequency

G01D 5/249 ・・・using pulse code

G01D 5/2492 ・・・・{Pulse stream}

G01D 5/2495 ・・・・・{Pseudo-random code}

G01D 5/2497 ・・・・{Absolute encoders (G01D 5/2454 takes precedence)}

G01D 5/25 ・・Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts

G01D 5/251 ・・・one conductor or channel

G01D 5/2515 ・・・・{with magnetically controlled switches, e.g. by movement of a magnet}

G01D 5/252 ・・・a combination of conductors or channels

G01D 5/2525 ・・・・{with magnetically controlled switches, e.g. by movement of a magnet}

G01D 5/26 ・characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light

G01D 5/262 ・・{with optical projection of a pointer or a scale}

G01D 5/264 ・・{Mechanical constructional elements therefor (G01D 5/28, G01D 5/32, G01D 5/39 and G01D 5/40 take precedence); Mechanical adjustment thereof}

G01D 5/266 ・・{by interferometric means (G01D 5/353 takes precedence)}

G01D 5/268 ・・{using optical fibres (G01D 5/28 - G01D 5/38 take precedence)}

G01D 5/28 ・・with deflection of beams of light, e.g. for direct optica indication (G01D 5/40 takes precedence; {mechanical adjustment G01D 5/264})

G01D 5/285 ・・・{using a movable mirror}

G01D 5/30 ・・・the beams of light being detected by photocells

G01D 5/305 ・・・・{controlling the movement of a following part}

G01D 5/32 ・・with attenuation or whole or partial obturation of beams of light (G01D 5/40 takes precedence; {mechanical adjustment G01D 5/264})

G01D 5/34 ・・・the beams of light being detected by photocells

G01D 5/341 ・・・・{controlling the movement of a following part}

G01D 5/342 ・・・・{the sensed object being the obturating part}

G01D 5/344 ・・・・{using polarisation (G01D 5/35303 takes precedence)}

G01D 5/345 ・・・・・{Polarising encoders}

G01D 5/347 ・・・・using displacement encoding scales

G01D 5/34707 ・・・・・{Scales; Discs, e.g. fixation, fabrication, compensation}

G01D 5/34715 ・・・・・・{Scale reading or illumination devices}

G01D 5/34723 ・・・・・・・{involving light-guides}

G01D 5/3473 ・・・・・{Circular or rotary encoders}

G01D 5/34738 ・・・・・・{Axles; Driving or coupling means}

G01D 5/34746 ・・・・・{Linear encoders}

G01D 5/34753 ・・・・・・{Carriages; Driving or coupling means}

G01D 5/34761 ・・・・・・{Protection devices, e.g. caps; Blowing devices}

G01D 5/34769 ・・・・・・・{Sealing means}

G01D 5/34776 ・・・・・{Absolute encoders with analogue or digital scales}

G01D 5/34784 ・・・・・・{with only analogue scales or both analogue and incremental scales}

G01D 5/34792 ・・・・・・{with only digital scales or both digital and incremental scales}

G01D 5/353 ・・・・influencing the transmission properties of an optical fibre

G01D 5/35303 ・・・・・{using a reference fibre, e.g. interferometric devices}

G01D 5/35306 ・・・・・{using an interferometer arrangement}

G01D 5/35309 ・・・・・・{using multiple waves interferometer}

G01D 5/35312 ・・・・・・・{using a Fabry Perot}

G01D 5/35316 ・・・・・・・{using a Bragg gratings}

G01D 5/35319 ・・・・・・・{using other multiple wave interferometer}

G01D 5/35322 ・・・・・・{using interferometer with one loop with several directions of circulation of the light, e.g. Sagnac interferometer}

G01D 5/35325 ・・・・・・{using interferometer with two arms in reflection, e.g. Mickelson interferometer}

G01D 5/35329 ・・・・・・{using interferometer with two arms in transmission, e.g. Mach-Zender interferometer}

G01D 5/35332 ・・・・・・{using other interferometers}

G01D 5/35335 ・・・・・・{Aspects of emitters or receivers used by an interferometer in an optical fibre sensor arrangement (using multiple sensor devices using multiplexing techniques G01D 5/35383)}

G01D 5/35338 ・・・・・{using other arrangements than interferometer arrangements}

G01D 5/35341 ・・・・・・{Sensor working in transmission}

G01D 5/35345 ・・・・・・・{using Amplitude variations to detect the measured quantity}

G01D 5/35348 ・・・・・・・{using stimulated emission to detect the measured quantity}

G01D 5/35351 ・・・・・・・{using other means to detect the measured quantity}

G01D 5/35354 ・・・・・・{Sensor working in reflection}

G01D 5/35358 ・・・・・・・{using Backscattering to detect the measured quantity}

G01D 5/35361 ・・・・・・・・{using inelastic backscattering, e.g. Rayleigh, to detect the measured quantity}

G01D 5/35364 ・・・・・・・・{using elastic backscattering, i.e. Brillouin or Raman, to detect the measured quantity}

G01D 5/35367 ・・・・・・・{using reflected light other than backscattered to detect the measured quantity}

G01D 5/3537 ・・・・・{Optical fibre sensor using a particular arrangement of the optical fibre itself}

G01D 5/35374 ・・・・・・{Particular layout of the fiber}

G01D 5/35377 ・・・・・・{Means for amplifying or modifying the measured quantity}

G01D 5/3538 ・・・・・・{using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like}

G01D 5/35383 ・・・・・{using multiple sensor devices using multiplexing techniques}

G01D 5/35387 ・・・・・・{using wavelength division multiplexing}

G01D 5/3539 ・・・・・・{using time division multiplexing}

G01D 5/35393 ・・・・・・{using frequency division multiplexing}

G01D 5/35396 ・・・・・・{using other forms of multiplexing}

G01D 5/36 ・・・・Forming the light into pulses

G01D 5/363 ・・・・・{Direction discrimination}

G01D 5/366 ・・・・・{Particular pulse shapes}

G01D 5/38 ・・・・・by diffraction gratings

G01D 5/39 ・・Scanning a visible indication of the measured value and reproducing this indication at the remote place, e.g. on the screen of a cathode ray tube {mechanical adjustment G01D 5/264}

G01D 5/40 ・・specially adapted for use with infra-red light {mechanical adjustment G01D 5/264}

G01D 5/42 ・using fluid means

G01D 5/425 ・・{characterised 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 (this group takes precedence on the following groups)}

G01D 5/44 ・・using jets of fluid

G01D 5/46 ・・・by deflecting or throttling the flow

G01D 5/48 ・using wave or particle radiation means (G01D 5/26 takes precedence)

G01D 5/485 ・・{using magnetostrictive devices}

G01D 5/50 ・・derived from a radioactive source

G01D 5/52 ・・・detected by a counter tube

G01D 5/54 ・using means specified in two or more of groups G01D 5/02, G01D 5/12, G01D 5/26, G01D 5/42, and G01D 5/48

G01D 5/56 ・・using electric or magnetic means

G01D 5/58 ・・using optical means, i.e. using infra-red, visible or ultra-violet light

G01D 5/60 ・・using fluid means

G01D 5/62 ・・using wave or particle radiation means not covered by group G01D 5/58

G01D 7/00 Indicating measured values

G01D 7/002 ・{giving both analog and numerical indication}

G01D 7/005 ・{Indication of measured value by colour change}

G01D 7/007 ・{Indication of measured value by tactile means}

G01D 7/02 ・Indicating value of two or more variables simultaneously

G01D 7/04 ・・using a separate indicating element for each variable

G01D 7/06 ・・・Luminous indications projected on a common screen

G01D 7/08 ・・using a common indicating element for two or more variables

G01D 7/10 ・・・giving indication in co-ordinate form

G01D 7/12 ・Audible indication of meter readings, e.g. for the blind

G01D 9/00 Recording measured values

G01D 9/005 ・{Solid state data-loggers}

G01D 9/02 ・Producing one or more recordings of the values of a single variable

G01D 9/04 ・・with provision for multiple or alternative recording

G01D 9/06 ・・・Multiple recording, e.g. duplicating

G01D 9/08 ・・・・giving both graphical and numerical recording

G01D 9/10 ・・the recording element, e.g. stylus, being controlled in accordance with the variable, and the recording medium, e.g. paper roll, being controlled in accordance with time

G01D 9/12 ・・・recording occurring continuously

G01D 9/14 ・・・・with provision for altering speed of recording medium in accordance with the magnitude of the variable to be recorded

G01D 9/16 ・・・recording occurring at separated intervals, e.g. by chopper bar

G01D 9/18 ・・・・recording element actuated only upon change in value of variable

G01D 9/20 ・・the recording element, e.g. stylus, being controlled in accordance with time and the recording medium, e.g. paper roll, being controlled in accordance with the variable

G01D 9/22 ・・・recording occurring continuously

G01D 9/24 ・・・recording occurring at separated intervals, e.g. by chopper bar

G01D 9/26 ・・either the recording element, e.g. stylus, or the recording medium, e.g. paper roll, being controlled in accordance with both time and the variable

G01D 9/28 ・Producing one or more recordings, each recording being of the values of two or more different variables (G01D 9/38, G01D 9/40 take precedence)

G01D 9/285 ・・{producing additional marks (e.g. reference lines time marks)}

G01D 9/30 ・・there being a separate recording element for each variable, e.g. multiple-pen recorder

G01D 9/32 ・・there being a common recording element for two or more variables

G01D 9/34 ・・・the variables being recorded in a predetermined sequence

G01D 9/36 ・・・・in separate columns

G01D 9/38 ・Producing one or more recordings, each recording being produced by controlling the recording element, e.g. stylus, in accordance with one variable and controlling the recording medium, e.g. paper roll, in accordance with another variable

G01D 9/40 ・Producing one or more recordings, each recording being produced by controlling either the recording element, e.g. stylus or the recording medium, e.g. paper roll, in accordance with two or more variables

G01D 9/42 ・Recording indications of measuring instruments by photographic means, e.g. of counters

G01D 11/00 Component parts of measuring arrangements not specially adapted for a specific variable (G01D 13/00, G01D 15/00 take precedence)

G01D 11/02 ・Bearings or suspensions for moving parts (bearings in general F16C)

G01D 11/04 ・・Knife-edge bearings

G01D 11/06 ・・Strip or thread suspensions, e.g. in tension

G01D 11/08 ・Elements for balancing moving parts

G01D 11/10 ・Elements for damping the movement of parts

G01D 11/12 ・・using fluid damping

G01D 11/14 ・・using magnetic induction damping

G01D 11/16 ・Elements for restraining, or preventing the movement of, parts, e.g. for zeroising (caging of moving parts when not in use G01D 11/20)

G01D 11/18 ・・Springs (G01D 11/06 takes precedence)

G01D 11/20 ・Caging devices for moving parts when not in use

G01D 11/22 ・・automatically actuated

G01D 11/24 ・Housings; {Casings for instruments}

G01D 11/245 ・・{Housings for sensors (for particular sensors see the relevant subclasses, e.g. G01J 5/04, G01K 1/14, G01L 19/14, G01P 1/02, G01R 1/04, G10K 11/004)}

G01D 11/26 ・・Windows; Cover glasses; Sealings therefor

G01D 11/28 ・Structurally-combined illuminating devices

G01D 11/30 ・Supports specially adapted for an instrument; Supports specially adapted for a set of instruments (in general F16M; specially adapted for aircraft, or vehicles, see the relevant subclasses)

G01D 11/305 ・・{Panel mounting of instruments}

G01D 13/00 Component parts of indicators for measuring arrangements not specially adapted for a specific variable

G01D 13/02 ・Scales; Dials

G01D 13/04 ・・Construction

G01D 13/06 ・・・Moving bands (G01D 13/10 takes precedence)

G01D 13/08 ・・・Rotating drums (G01D 13/10 takes precedence)

G01D 13/10 ・・・with adjustable scales; with auxiliary scales, e.g. vernier

G01D 13/12 ・・Graduation

G01D 13/14 ・・・for rotations of more than 360 degrees

G01D 13/16 ・・・with staggered markings

G01D 13/18 ・・・with raised or recessed markings

G01D 13/20 ・・・with luminescent markings

G01D 13/22 ・Pointers, e.g. settable pointer

G01D 13/24 ・・for indicating a maximum or minimum

G01D 13/26 ・・adapted to perform a further operation, e.g. making electrical contact

G01D 13/265 ・・・{Pointers which conduct light}

G01D 13/28 ・・with luminescent markings

G01D 15/00 Component parts of recorders for measuring arrangements not specially adapted for a specific variable

G01D 15/005 ・{Effaceable recording}

G01D 15/02 ・Styli or other recording elements acting to mechanically deform or perforate the recording surface (printing recording elements G01D 15/20)

G01D 15/04 ・・acting to punch holes in the recording surface

G01D 15/06 ・Electric recording elements, e.g. electrolytic

G01D 15/08 ・・for spark erosion

G01D 15/10 ・Heated recording element acting on heatsensitive layers

G01D 15/12 ・Magnetic recording elements

G01D 15/14 ・Optical recording elements; Recording elements using X-or nuclear radiation

G01D 15/16 ・Recording elements transferring recording material, e.g ink, to the recording surface (printing recording elements 15/20; implements for writing or drawing in general B43K)

G01D 15/18 ・・Nozzles emitting recording material

G01D 15/20 ・Recording elements for printing with ink or for printing by deformation or perforation of the recording surface, e.g. embossing

G01D 15/22 ・Chopper bars for bringing recording element into contact with recording surface

G01D 15/24 ・Drives for recording elements and surfaces not covered by G01D 5/00

G01D 15/26 ・・operating by clockwork (clockworks per se G04B, G04C)

G01D 15/28 ・Holding means for recording surfaces; Guiding means for recording surfaces; Exchanging means for recording surfaces

G01D 15/30 ・・for foldable strip charts

G01D 15/32 ・・for circular charts

G01D 15/34 ・Recording surfaces {for printing or reproducing B41M}

G01D 15/342 ・・{of circular shape}

G01D 15/345 ・・{of cylindrical shape}

G01D 15/347 ・・{Strip or Tape}

G01D 18/00 Testing or calibrating of apparatus or arrangements provided for in groups G01D 1/00 to G01D 15/00

G01D 18/002 ・{Automatic recalibration (G01D 18/008 takes precedence)}

G01D 18/004 ・・{Continuous recalibration}

G01D 18/006 ・・{Intermittent recalibration}

G01D 18/008 ・{with calibration coefficients stored in memory}

G01D 21/00 Measuring or testing not otherwise provided for

G01D 21/02 ・Measuring two or more variables by means not covered by a single other subclass