公开(公告)号：WO1989004968A1

公开(公告)日：1989-06-01

申请号：PCT/US1988003770

申请日：1988-10-25

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  HULSING, Rand, H., II

IPC: G01P09/04

CPC classification number: G01C19/5705 ,  G01C19/5776

Abstract: A Coriolis rate sensor for determining both angular rate and linear acceleration with respect to three orthogonal axes. A first embodiment of the rate sensor (10) includes three pairs of accelerometers (26, 28 and 30) mounted on counter-rotating frame members (20, 22). The accelerometers are mounted with their sensitive axes antiparallel with each other, forming an acute angle with the common axis (40) about which the upper and lower frame members are counter-rotated back and forth in a dither motion. The upper and lower frame members are connected to a baseplate (12) by flex links (32), which are aligned radially about the axis. The flex links provide a relatively rigid support (in compression) between the frame members and the centrally disposed baseplate, yet readily permit counter-rotation of the two frame members. A link (56) prevents all but relative rotational movement between the frame members and baseplate. A pair of electromagnetic coils (42) and pole pieces (50) provide a sinusoidal driving force to counter-rotate the upper and lower frame members relative to each other to ensure that the upper and lower frame members are directly coupled to each other and to the baseplate. In a second embodiment of the rate sensor (100), eight accelerometers (102, 104, 106 and 108) are mounted with two pairs on an upper counter-rotating member and two pairs on a lower counter-rotating member.

公开(公告)号：WO1989000700A1

公开(公告)日：1989-01-26

申请号：PCT/US1988002301

申请日：1988-07-08

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  HULSING, Rand, H. ,  PETERS, Rex, B.

IPC: G01P09/04

CPC classification number: G01C19/5726

Abstract: A Coriolis rate sensor comprising first (120) and second (122) accelerometers with their force sensing axes parallel to a common sensing axis. The accelerometers (120, 122) are vibrated along arcs (16) in response to a periodic drive signal (150) at a first frequency, each arc being tangent to a vibration axis normal to the sensing axis. The accelerometer output signals (130, 132) are demodulated (104, 106) to determine angular rate, as well as to detect the phase shift between the drive signal (150) and the periodic components of the output signals (130, 132). In one arrangement, the detected phase shifts are used to drive a phase servo that tends to reduce the bias error caused by interaction between the phase shifts (160, 170) and misalignments (164, 174) of the accelerometers (120, 122) with respect to the sensing axis. In another arrangement, the phase shifts (160, 170) are used to calculate a bias term (178) for correcting the measured angular rate. A single accelerometer (14) embodiment is also described.

公开(公告)号：WO1988008544A1

公开(公告)日：1988-11-03

申请号：PCT/US1988000810

申请日：1988-03-15

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  CHISHOLM, John, P.

IPC: G01S13/06

CPC classification number: G01S3/30 ,  G01S13/42 ,  G01S13/913

Abstract: A guidance system for landing an aircraft is described which uses a source of signals identifiable with the aircraft and a ground station which is linked to the aircraft. Specifically, the ground station includes a receiver (51) which is connected to one or more pairs of antennas (52, 53, 54, 55) having a fixed, overlapping, directional sensitive pattern (52a, 53a, 54a, 55a) symmetrically located relative to the center of the landing path, a receiver and a processor (60) for measuring the relative sensitivity of the signals received at the antennas and for using the relative signal intensity to determine the location of the aircraft (61) relative to the center of the landing path.

公开(公告)号：WO1988005545A1

公开(公告)日：1988-07-28

申请号：PCT/US1988000130

申请日：1988-01-20

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  MACGUGAN, Douglas, C.

IPC: G01R33/04

CPC classification number: H01F38/22 ,  G01R33/045 ,  H01F5/02 ,  Y10T29/49073

Abstract: A magnetometer sensor for a borehole survey. The magnetometer features a bobbin (30) made from a metal alloy such as copper-nickel, which has a very low magnetic permeability, on the order of 1.0001, which can be joined to a magnetic metal alloy, such as Permalloy, by welding, which can be treated by annealing at a temperature of 1500 degrees Fahrenheit and which has a thermal coefficient of expansion generally on the order of the magnetic alloy. In one particular embodiment, the magnetometer sensor comprises a strip of magnetic metal alloy wrapped around the aforesaid bobbin (30) to define a magnetic core, one excitation winding (36) wrapped around the core, a plastic frame (38) for carrying the magnetic core and excitation winding and at least one sense winding (50) wrapped around the frame, the core and the excitation winding.

公开(公告)号：WO1988000734A1

公开(公告)日：1988-01-28

申请号：PCT/US1987001694

申请日：1987-07-15

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  GROVE, Michael, M.

IPC: G06F13/00

CPC classification number: G11C8/12 ,  G01C21/22 ,  G05D1/0646

Abstract: A novel memory system (10) for use with aircraft which utilize warning and advisory systems such as ground proximity warning systems, and warning systems whose warning criteria are modifiable as a function of the topographical characteristics associated with specific geographical areas over which the aircraft is flying. In accordance with the invention topographical data for specific geographical regions is mapped into various individual memory devices (EPROM's 20-1 through 20-16) and powering only one device at a time by means of a decoder (40) whereby the power dissipation of the entire memory system is limited to that of only one memory device regardless of the number of memory devices in the system.

Abstract translation: 一种与飞机一起使用的新型记忆系统（10），其利用诸如地面邻近警报系统和警告系统的警告和咨询系统，其警告标准可作为与飞机飞行的特定地理区域相关联的地形特征的函数而变化 。 根据本发明，特定地理区域的地形数据被映射到各种单独的存储器件（EPROM的20-1至20-16）中，并且通过解码器（40）一次仅为一个设备供电，由此， 整个存储器系统仅限于一个存储器设备，而与系统中的存储器件的数量无关。

公开(公告)号：WO1987006044A1

公开(公告)日：1987-10-08

申请号：PCT/US1987000633

申请日：1987-03-23

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  VERMILION, Everette, E. ,  PATERSON, Noel, S.

IPC: G08B23/00

CPC classification number: G01C5/005 ,  G01P1/08 ,  G05D1/0646

Abstract: A system (10) for warning the pilot of a tactical aircraft in a tactical maneuver such as a dive of the point at which recovery must be immediately initiated to prevent the aircraft from descending below a minimum desired altitude. The system monitors and the altitude (16), descent rate (14) pitch angle (10) of the aircraft and the roll angle (34) of the aircraft, and issues a voice warning (30, 32) when recovery must be initiated. The system also includes means (10') to provide warnings of dangerous flight conditions during non-tactical or common route segments of a flight such as the take-off, landing and cruise segments of a flight. Circuitry (40) responsive to the arming of the weapons of the aircraft enables the tactical warning portion of the system and disables certain functions of the non-tactical portion of the system that may cause false warnings to be generated during tactical maneuvers.

Abstract translation: 一种用于在战术机动中警告飞行员的系统（10），例如必须立即启动恢复的点的潜水以防止飞行器低于最小期望高度。 系统监视飞机的高度（16），高度（16），下降率（14）俯仰角（10）和飞机的侧倾角（34），并在启动恢复时发出语音警告（30,32）。 该系统还包括用于在飞行的非战术或共同路线段（例如飞行的起飞，着陆和巡航段）期间提供危险飞行状况的警告的装置（10'）。 对飞机武器作出反应的电路（40）使得系统的战术警告部分能够使系统的非战术部分的某些功能失效，从而可能在战术机动过程中产生虚警。

公开(公告)号：WO1987004991A1

公开(公告)日：1987-08-27

申请号：PCT/US1987000274

申请日：1987-02-10

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  MULLER, Hans, R. ,  GLOVER, John, H.

IPC: B64D45/00

CPC classification number: G05D1/0615

Abstract: A wind shear detection and alerting system (30) compares inertially derived accelerations (32, 34) with air speed rate (52) to provide a wind shear warning signal. Inertially derived accelerations are used instead of urely inertial accelerations because purely inertial systems generally require a vertical gyro. By utilizing angle of attack (alpha) and flight path angle (gamma) instead of pitch signal () in the calculation, no vertical gyro signal is required and the system will be responsive to vertical as well as horizontal shear conditions. An enhanced version of the system is also compensated for roll angle (O/), with the roll angle being derived from the rate of change of heading (psi) to avoid the need for a vertical gyro. The alerting system is capable of providing visual and aural warnings for a variety of wind shear conditions, such as, head shear, tail shear, head shear followed by tail shear and wind shear, trend. The warning system is also capable of providing a wind shear warning which is a function of the radio altitude (112) of the aircraft.

公开(公告)号：WO1992003739A1

公开(公告)日：1992-03-05

申请号：PCT/US1991005785

申请日：1991-08-15

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  FOOTE, Steven, A.

IPC: G01P15/08

CPC classification number: G01P15/132 ,  G01P1/006

Abstract: An improved technique for mounting a coil to a paddle in a force rebalance accelerometer so as to provide relief from temperature induced strains without increasing the mass of the proof mass. The coil (30) is mounted to the paddle (54, 104) at a plurality of mounting sites (60, 62, 64, 110, 112, 114) on the paddle, at least one (62, 64, 112, 114) of which is connected to the paddle by suspension means (76, 78, 86, 88, 120, 122, 130, 132) compliant for movement in the plane of the paddle. In a preferred arrangement, three mounting sites are used, two of which are moveable (62, 64, 112, 114) towards and away from the third, fixed mounting site (60, 110).

公开(公告)号：WO1991020128A1

公开(公告)日：1991-12-26

申请号：PCT/US1991003560

申请日：1991-05-20

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  PETERS, Rex, B.

IPC: H03J01/00

CPC classification number: G01D5/248 ,  G01R23/00 ,  H03L7/183

Abstract: A technique for reducing the effects of aliasing in a frequency output sensor system. The system includes a sensor (12) for producing a sensor output signal at a frequency that varies within a modulation range as a function of an input parameter (50). The system also includes a processor for measuring the frequency of the sensor output signal at a sequence of sample times. The invention provides an analog filter for filtering the sensor output signal. In a first embodiment, the filter has an increasing phase lag versus frequency characteristic within the modulation range (70). In second embodiment, the filter comprises a phase lock loop having frequency dividers in the input signal path (80) and in the feedback path (82).

公开(公告)号：WO1990010207A1

公开(公告)日：1990-09-07

申请号：PCT/US1990000131

申请日：1990-01-08

Applicant: SUNDSTRAND DATA CONTROL, INC.

Inventor： SUNDSTRAND DATA CONTROL, INC. ,  NORLING, Brian, L.

IPC: G01L01/10

CPC classification number: H01L41/1132 ,  G01L1/162 ,  G01L1/183 ,  G01P15/0802 ,  G01P15/097 ,  G01P15/0975 ,  G01P15/123 ,  G01P2015/0828

Abstract: A push-pull force transducer comprising a unitary body (40) formed from a crystalline substrate. The body comprises first and second mounting elements (42, 44) for mounting the force transducer to first and second structures (72, 74), and first and second force sensing elements (46, 48) connected to the mounting elements. Each force sensing element has first and second ends, a line extending from the second to the first end defining a force sensing axis for the force sensing elements. The force sensing elements are oriented with their force sensing axes parallel to and aligned with one another. The first force sensing element has its first end connected to the second mounting element and its second end connected to the first mounting element. The second force sensing element has its first end connected to the first mounting element and its second end connected to the second mounting element. Also described are embodiments utilizing strain relief flexures and an embodiment featuring a leveraged design.