摘要:
The invention relates to a laser distance measuring device, which has an emitting unit (10) with at least one laser and has a receiving unit (12) in addition to a single-sideband modulation unit (14), with which a modulation frequency (S1) of the emitting unit (10) can be generated from a first single-sideband modulation frequency (ZF1), which is generated by an oscillator unit (16), and from a carrier frequency (T1). According to the invention, at least one additional frequency (ZF2) can be generated by the oscillator unit (16), and a demodulation frequency (S2) of the receiving unit (12) can be generated from the additional frequency (ZF2) by the single-sideband modulation unit (14).
摘要:
The invention relates to a distance measuring device comprising at least one oscillator (2G) which produces a basic signal at a basic frequency (fo) and a first circuit device (30) which produces a first signal at a first frequency (fl) which is higher than that of the basic frequency (fo), wherein the first circuit device (30) comprises at least one PLL circuit (32) and a VCO circuit.
摘要:
The invention relates to a device for optical measurement of distance, comprising a transmitter unit (12), with a light source (17,18), for transmitting modulated optical radiation onto a target object (15) and with a receiver unit (14), displaced relative to the optical axis (38) of the transmitter unit (12), with at least one optical detector (54) for receiving the optical radiation (16,49,50), returning from the target object (15) and a control and evaluation unit (36) for determining the distance (48) from the device to the target object (15). According to the invention, the active light sensitive surfaces (66,67,69,82) of the detector (54) in the receiver unit (14) taper in the direction (61) of the radiation shift for receding target object separations (48) arising from the parallax of the returning radiation.
摘要:
The invention relates to a device for optical measurement of distance, comprising a transmitter unit (12), with a light source (17,18), for transmitting modulated optical radiation onto a target object (15) and with a receiver unit (14), displaced relative to the optical axis (38) of the transmitter unit (12), with at least one optical detector (54) for receiving the optical radiation (16,49,50), returning from the target object (15) and a control and evaluation unit (36) for determining the distance (48) from the device to the target object (15). According to the invention, the active light sensitive surfaces (66,67,69,82) of the detector (54) in the receiver unit (14) taper in the direction (61) of the radiation shift for receding target object separations (48) arising from the parallax of the returning radiation.
摘要:
The invention relates to a laser distance measuring device, which has an emitting unit (10) with at least one laser and has a receiving unit (12) in addition to a single-sideband modulation unit (14), with which a modulation frequency (S1) of the emitting unit (10) can be generated from a first single-sideband modulation frequency (ZF1), which is generated by an oscillator unit (16), and from a carrier frequency (T1). According to the invention, at least one additional frequency (ZF2) can be generated by the oscillator unit (16), and a demodulation frequency (S2) of the receiving unit (12) can be generated from the additional frequency (ZF2) by the single-sideband modulation unit (14).
摘要:
The invention relates to a distance measuring device, comprising at least one transmitter unit (14, 16), arranged in a housing (10, 12), for emitting a light measuring signal, in particular, a laser beam, at least one receiver unit (20, 22), for receiving a component of the measuring signal reflected from a distant object and a calculating unit. According to the invention, at least one sensor is arranged in the housing (10, 12) by means of which the transmission angle (24) of the light measuring signal may be recorded relative to at least one comparative value.