CN1996050A - Electro-detection case suitable for oscillatory scanning type infrared earth sensor testing - Google Patents
Electro-detection case suitable for oscillatory scanning type infrared earth sensor testing Download PDFInfo
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- CN1996050A CN1996050A CN 200610165439 CN200610165439A CN1996050A CN 1996050 A CN1996050 A CN 1996050A CN 200610165439 CN200610165439 CN 200610165439 CN 200610165439 A CN200610165439 A CN 200610165439A CN 1996050 A CN1996050 A CN 1996050A
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Abstract
The electric check box suitable for oscillating scanning infrared earth sensitive testing comprises multi interfaces on the shell, circuit board inside the shell, 220V AC interface, DC interface, sensitive power switch, electric check box main switch, testing interface, sensor power supply current display unit, sensor signal interface, sensor current interface, signal source interface and work controlled machine interface. The oscillating scanning infrared earth sensor signal interface connects with its power interface, signal source equipment connects with it through the interface, so does the working controlled machine. It can make barricading drive handling for the check signal, for electrograph or avometer, using high precision linear optical coupling barricading handling for input and output analog signal, effectively ensuring the signal transmission quality.
Description
Technical field
The present invention relates to a kind of electric-examination measuring tank that is applicable to that oscillatory scanning infrared earth sensor test is used, described electric-examination measuring tank provides safe power supply power supply, detection terminal, multichannel interface and power protection for oscillatory scanning infrared earth sensor in test process.
Background technology
Oscillatory scanning infrared earth sensor is that main in a kind of Satellite Attitude Determination System decided appearance equipment, and it determines flight attitude by the position of the relative earth of instrumented satellite.Oscillatory scanning infrared earth sensor generally can directly calculate the roll angle and the angle of pitch of satellite.
Oscillatory scanning infrared earth sensor needs an electro-detection equipment that its required power supply is provided when operate as normal, be generally+5V, ± 15V, and demand has overvoltage, overcurrent protection.
Because oscillatory scanning infrared earth sensor is the small-signal processing circuitry, device costs an arm and a leg; Will influence its measuring accuracy in any undesired signal of test process.In order to solve electro-detection equipment oscillatory scanning infrared earth sensor is caused interference, the inventor proposes a kind of electric-examination measuring tank input/output signal to be carried out the photoelectricity isolation processing, for convenient test, and a plurality of interfaces of design on the housing of electric-examination measuring tank.
Summary of the invention
The purpose of this invention is to provide a kind of electric-examination measuring tank that is applicable to that oscillatory scanning infrared earth sensor test is used, described electric-examination measuring tank is connected with external devices by a plurality of interfaces that are located on the housing, then input/output signal is carried out the influence that the photoelectricity isolation processing is eliminated the measuring accuracy that undesired signal causes oscillatory scanning infrared earth sensor.
The present invention is applicable to the electric-examination measuring tank that oscillatory scanning infrared earth sensor test is used, and includes to be arranged on a plurality of interfaces on the housing and to be installed in the interior circuit board of housing; The housing of electric-examination measuring tank is provided with 220V AC power interface, direct supply interface, sensor power switch, electric-examination measuring tank master switch, test interface, sensor supply current display unit, sensor signaling interface, sensor power interface, electric signal source device interface and industrial computer interface.Oscillatory scanning infrared earth sensor is coupled by sensor signaling interface and sensor power interface, and electric signal source device is coupled by the electric signal source device interface, and industrial computer is coupled by the industrial computer interface.Described circuit board is made up of level signal processing unit, signal source signal processing unit, the power supply of sensor power supply and holding circuit and electric-examination measuring tank power module; The design of described test interface can be according to the needs of testing in the oscillatory scanning infrared earth sensor development process, are provided with as simulation earth ripple signal testing end, earth ripple differential signal test lead, and its information can be connected with it by oscillograph and obtains; The inner voltage output test lead that detects of oscillatory scanning infrared earth sensor, its information can be connected with it by multimeter and obtain; The information of oscillatory scanning infrared earth sensor supply current shows and can be shown by digital electronic ammeter.
The advantage of electric-examination measuring tank of the present invention is: (1) is connected by design cable interface and external devices on housing, has solved the complicacy of line, has made things convenient for and being connected of external devices; (2) adopt the electric-examination measuring tank for oscillatory scanning infrared earth sensor provides the mode of power supply, solved the Electro Magnetic Compatibility between power supply and the electric-examination measuring tank; (3) be directed to oscillatory scanning infrared earth sensor test Demand Design independent power-supplying circuit and holding circuit of powering for its power supply, solved the protection of the power supply of power supply under the oscillatory scanning infrared earth sensor proper testing state effectively to it, and when seasoned to the requirement of power supply; (4) can carry out the detection signal of oscillatory scanning infrared earth sensor inside after isolation drive handles, detect for external test facility (oscillograph or multimeter) and use; (5) simulating signal to I/O adopts high precision linear optical coupling isolation processing, and the digital signal employing high-speed figure light-coupled isolation of I/O is handled, and has guaranteed signal transmission quality effectively.
Description of drawings
Fig. 1 is arranged on the interface diagrammatic sketch on the electro-detection tank shell of the present invention.
Fig. 2 is an electric-examination measuring tank internal circuit board configuration diagram of the present invention.
Fig. 3 is power supply of sensor power supply and holding circuit figure.
Fig. 4 A is-10V level signal treatment circuit figure.
Fig. 4 B is+27V level signal treatment circuit figure.
Fig. 4 C is CH1_D level signal treatment circuit figure.
Fig. 4 D is REF_M level signal treatment circuit figure.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The present invention is applicable to the electric-examination measuring tank that oscillatory scanning infrared earth sensor test is used, and includes to be arranged on a plurality of interfaces on the housing and to be installed in the interior circuit board of housing; Described interface sees also shown in Figure 1, and the housing of electric-examination measuring tank is provided with 220V AC power interface, direct supply interface, sensor power switch, electric-examination measuring tank master switch, test interface, sensor supply current display unit, sensor signaling interface, sensor power interface, electric signal source device interface and industrial computer interface.Oscillatory scanning infrared earth sensor is coupled by sensor signaling interface and sensor power interface, and electric signal source device is coupled by the electric signal source device interface, and industrial computer is coupled by the industrial computer interface.Described circuit board is made up of level signal processing unit, signal source signal processing unit, the power supply of sensor power supply and holding circuit and electric-examination measuring tank power module; The design of described test interface can be according to the needs of testing in the oscillatory scanning infrared earth sensor development process, are provided with as simulation earth ripple signal testing end, earth ripple differential signal test lead, and its information can be connected with it by oscillograph and obtains; The inner voltage output test lead that detects of oscillatory scanning infrared earth sensor, its information can be connected with it by multimeter and obtain; The information of oscillatory scanning infrared earth sensor supply current shows and can be shown by digital electronic ammeter.
See also shown in Figure 2, described electric-examination measuring tank receives 11 road signals by oscillatory scanning infrared earth sensor output, wherein, the four tunnel is the inner level signal of oscillatory scanning infrared earth sensor (first via level signal+27V, the second tunnel level signal-27V, Third Road level signal+10V, the four tunnel level signal-10V); Four road earth ripple differential signals (first via earth ripple differential signal CH1_D, the second road earth ripple differential signal CH2_D, Third Road earth ripple differential signal CH3_D, the four road earth ripple differential signal CH4_D); No. three machines are surveyed sweep signal, and (machine is surveyed reference signal REF_M, machine and is surveyed direction signal SD_M, machine and survey clock signal clk _ M).
See also shown in Fig. 4 A, among the present invention, the connection of the circuit of the four tunnel level signal-10V is: the four tunnel level signal-10V is attached to isolator through resistance R 520 and resistance R 521, the common port of resistance R 520 and resistance R 521 is connected to resistance R 522, the other end of resistance R 522 is connected to the negative terminal of amplifier U24B, the anode of amplifier U24B is connected to isolator through resistance R 524, the output terminal of described amplifier U24B feeds back the negative terminal that is attached to amplifier U24B through resistance R 523, and is connected to the negative terminal of amplifier U24A and 3 input ends of linear optical coupling OP18 through resistance R 525; The anode of described amplifier U24A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, and the output terminal of amplifier U24A is connected to 1 input end of linear optical coupling OP18 simultaneously; 2 ends of linear optical coupling OP18 are connected to isolation+12VD through pull-up resistor R526,4 ends of linear optical coupling OP18 are connected to isolator, 5 ends of linear optical coupling OP18 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U25A, 6 ends of linear optical coupling OP18 are connected to amplifier U25A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP18 are vacant, do not connect any element; Described amplifier U25A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U25A is attached to the anode of amplifier U25A through resistance R 527 feedbacks simultaneously, and is connected to the anode of amplifier U25B through resistance R 528; The negative terminal of amplifier U25B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals-10V_T through capacitor C 504.
In circuit shown in Fig. 4 A, resistance R 520 and 521 couples-10V of resistance R signal dividing potential drop, and the signal after negater circuit that amplifier U24B forms is to dividing potential drop carries out oppositely, circuit linearity insulating circuit through amplifier U24A, linear optical coupling OP18 and amplifier U25A composition carries out simulating signal isolation, follow circuit output signal-10V_T that signal is formed through amplifier U25B.
In the present invention, the treatment circuit of the second tunnel level signal-27V is some difference of concrete parameter with identical at circuit shown in Fig. 4 A, so no longer its circuit is elaborated;
Shown in Fig. 4 B, in the present invention, the level signal treatment circuit of first via level signal+27V and Third Road level signal+10V has same structure.Circuit is basic identical shown in circuit shown in Fig. 4 B and Fig. 4 A, is with the difference of circuit shown in Fig. 4 A: remove the negater circuit that amplifier U24B, resistance R 522, resistance R 523 and resistance R 524 are formed, directly resistance R 503 right-hand members are connected to the negative terminal of U19A.The connection of the circuit of first via level signal+27V is: first via level signal+27V is attached to isolator through resistance R 501 and resistance R 502, the common port of resistance R 501 and resistance R 502 is connected to resistance R 503, and the other end of resistance R 503 is connected to the negative terminal of amplifier U19A; The anode of described amplifier U19A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, and the output terminal of amplifier U19A is connected to 1 input end of linear optical coupling OP15 simultaneously; 2 ends of linear optical coupling OP15 are connected to isolation+12VD through pull-up resistor R506,4 ends of linear optical coupling OP15 are connected to isolator, 5 ends of linear optical coupling OP15 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U20A, 6 ends of linear optical coupling OP15 are connected to amplifier U20A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP15 are vacant, do not connect any element; Described amplifier U20A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U20A is attached to the anode of amplifier U20A through resistance R 504 feedbacks simultaneously, and is connected to the anode of amplifier U20B through resistance R 505; The negative terminal of amplifier U20B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals+27V_T through capacitor C 501.
Shown in Fig. 4 C, in the present invention, the level signal treatment circuit of first via earth ripple differential signal CH1_D, the second road earth ripple differential signal CH2_D, Third Road earth ripple differential signal CH3_D and the four road earth ripple differential signal CH4_D has same structure.Circuit is basic identical shown in circuit shown in Fig. 4 C and Fig. 4 A, be with the difference of circuit shown in Fig. 4 A: remove the bleeder circuit that R520 and R521 form, remove the negater circuit that amplifier U24B, resistance R 522, resistance R 523 and resistance R 524 are formed, first via earth ripple differential signal CH1_D signal is passed through the input resistance R201 that directly is connected to buffer circuit after amplifier U9B follows, and resistance R 201 is connected to the negative terminal of amplifier U9A and 3 input ends of linear optical coupling OP5; The anode of described amplifier U9A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, and the output terminal of amplifier U9A is connected to 1 input end of linear optical coupling OP5 simultaneously; 2 ends of linear optical coupling OP5 are connected to isolation+12VD through pull-up resistor R202,4 ends of linear optical coupling OP5 are connected to isolator, 5 ends of linear optical coupling OP5 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U10A, 6 ends of linear optical coupling OP5 are connected to amplifier U10A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP5 are vacant, do not connect any element; Described amplifier U10A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U10A is attached to the anode of amplifier U10A through resistance R 203 feedbacks simultaneously, and is connected to the anode of amplifier U10B through resistance R 204; The negative terminal of amplifier U10B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals CH1_D through capacitor C 201
o
See also shown in Fig. 4 D, among the present invention, each terminal connection that machine is surveyed reference signal REF_M is: the machine by the oscillatory scanning infrared earth sensor input is surveyed the negative terminal that reference signal REF_Mi is connected to the light emitting diode of digital optocoupler OP9, the anode of the light emitting diode of numeral optocoupler OP9 is connected to insulating power supply+5VD through pull-up resistor R301, the emitter of described digital optocoupler OP9 is connected to electric-examination measuring tank power supply ground, the collector of numeral optocoupler OP9 is connected to electric-examination measuring tank power supply+5V through pull-up resistor R302, and connect through the anode of resistance R 303 with comparer U17A, the negative terminal of comparer U17A connects the 2V reference voltage, the output terminal of comparer U17A connects behind pull-up resistor R304+5V, and with triode Q1, the base stage of triode Q2 connects, the collector of triode Q1 connects+5V, the grounded collector of triode Q2, the emitter of triode Q1 connects with the emitter of triode Q2, and union end output machine after resistance R 305 is surveyed reference signal REF_Mo output.In the present invention, be the same circuits structure because machine is surveyed the circuit of reference signal REF_M, machine survey direction signal SD_M, machine survey clock signal clk _ M, so no longer its circuit is elaborated.
See also shown in Figure 2, among the present invention, 11 road signals of the oscillatory scanning infrared earth sensor input that described electric-examination measuring tank receives, through the level signal processing unit processes, wherein, isolate the inner level signal of output (first via outputs level signals+27V_T, the second tunnel outputs level signals-27V_T, Third Road outputs level signals+10V_T, the four tunnel outputs level signals-10V_T), be connected to the industrial computer interface and the test interface of electro-detection tank shell simultaneously; Isolate four road earth ripple differential signals of exporting (first via output earth ripple differential signal CH1_Do, the second tunnel output earth ripple differential signal CH2_Do, Third Road output earth ripple differential signal CH3_Do, the four tunnel output earth ripple differential signal CH4_Do), be connected to the test interface of electro-detection tank shell simultaneously; No. three machines of isolation output are surveyed sweep signal, and (the output machine is surveyed reference signal REF_Mo, the output machine is surveyed direction signal SD_Mo, output machine survey clock signal clk _ Mo), be connected to the test interface of electro-detection tank shell simultaneously.
See also shown in Figure 2, described electric-examination measuring tank receives 7 road signals by the electric signal source device input, wherein, four the tunnel are simulation earth ripple signal (first via earth ripple signal CH1, the second road earth ripple signal CH2, Third Road earth ripple signal CH3, the four road earth ripple signal CH4), and three tunnel electrical measurement sweep signals (electrical measurement reference signal REF_E, electrical measurement direction signal SD_E, electrical measurement clock signal clk _ E).
In the present invention, first via earth ripple signal CH1, the second road earth ripple signal CH2, Third Road earth ripple signal CH3 and the four road earth ripple signal CH4 have the same treatment circuit, have the same circuits structure so no longer its circuit is elaborated with circuit shown in Fig. 4 C.
In the present invention, because electrical measurement reference signal REF_E, electrical measurement direction signal SD_E and electrical measurement clock signal clk _ E have the same treatment circuit, has the same circuits structure with circuit shown in Fig. 4 D, so no longer its circuit is elaborated.
See also shown in Figure 2, among the present invention, 7 road signals of the electric signal source device input that described electric-examination measuring tank receives, processing through the signal source signal processing unit, wherein, isolate output four road earth ripple signals (first via output earth ripple signal CH1_o, the second tunnel output earth ripple signal CH2_o, Third Road output earth ripple signal CH3_o, the four tunnel output earth ripple signal CH4_o) is connected to the sensor signaling interface of electro-detection tank shell, isolates three tunnel electrical measurement sweep signals (the output electrical measurement reference signal REF_Eo of output, output electrical measurement direction signal SD_Eo, output electrical measurement clock signal clk _ Eo) is connected to the sensor signaling interface of electro-detection tank shell.See also shown in Figure 3, the sensor power interface provides independent current source for oscillatory scanning infrared earth sensor, the connection of each terminal is in its circuit: among the present invention, the sensor power supply state judge output+5V overcurrent sign OI_5 ,+15V overcurrent sign OI_15 ,-15V overcurrent sign OI_-15 ,+5V overvoltage sign OV_5 ,+15V overvoltage sign OV_15 and-15V overvoltage sign OV_-15;
Described+5V overcurrent sign OI_5 ,+15V overcurrent sign OI_15 and-15V overcurrent sign OI_-15 and three inputs connect with the input end of door S1A, described+5V overvoltage sign OV_5 ,+15V overvoltage sign OV_15 and-15V overvoltage sign OV_-15 and three imports with the input end of a S1B and connects;
The output terminal of three inputs and a door S1A, three inputs and door S1B is connected to the input end of three inputs and door S1C, and three inputs are connected to the output terminal of d type flip flop S3A with another input end of door S1C
Three inputs connect with the output terminal difference Sheffer stroke gate S2A input end of door S1C, the input end of not gate S2C; The input end of not gate S2A output terminal Sheffer stroke gate S2B connects, the output terminal output asserts signal SET of not gate S2B;
The output terminal of not gate S2C is connected to the clock end CLK of d type flip flop S3A, the set end of d type flip flop S3A
Input end D end and reset terminal
Be connected to+the 5V power supply, the power end VCC of d type flip flop S3A is connected to+5V, and the power supply ground end GND of d type flip flop S3A is connected to ground, the output terminal Q output reset signal RST of described d type flip flop S3A;
Asserts signal SET is connected to input end 1, input end 3 and the input end 5 of chip for driving MC1413, the corresponding input end 1 of described chip for driving MC1413, input end 3 and input end 5 respectively corresponding output+5V power supply drive signal SET+5 ,+15V power supply drive signal SET+15 and-the 15V drive signal SET-15 that powers;
Reset signal RST is connected to input end 2, input end 4 and the input end 6 of chip for driving MC1413, the corresponding input end 2 of described chip for driving MC1413, input end 4 and input end 6 respectively corresponding output+5V protection drive signal RST+5 ,+15V protection drive signal RST+15 and-15V protects drive signal RST-15;
Described+5V power supply drive signal SET+5 is connected to magnetic latching relay JQ1 input end 16, + 5V protection drive signal RST+5 is connected to magnetic latching relay JQ1 input end 15, magnetic latching relay JQ1 port one and port 2 are connected to+the 12V power end, behind magnetic latching relay JQ1 port 4, port 6, port one 1 and port one 3 short circuits, and be connected to sensor+5V input+5V_SIN that powers, behind magnetic latching relay JQ1 port 8 and port 9 short circuits, and be connected to sensor+5V output+5V_SOUT that powers;
Described+15V power supply drive signal SET+15 is connected to magnetic latching relay JQ2 input end 16, + 15V protection drive signal RST+15 is connected to magnetic latching relay JQ2 input end 15, magnetic latching relay JQ2 port one and port 2 are connected to+the 12V power end, behind magnetic latching relay JQ2 port 4, port 6, port one 1 and port one 3 short circuits, and be connected to sensor+15V input+15V_SIN that powers, behind magnetic latching relay JQ2 port 8 and port 9 short circuits, and be connected to sensor+15V output+15V_SOUT that powers;
Described-15V power supply drive signal SET-15 is connected to magnetic latching relay JQ3 input end 16;-15V protection drive signal RST-15 is connected to magnetic latching relay JQ3 input end 15; magnetic latching relay JQ3 port one and port 2 are connected to+the 12V power end; behind magnetic latching relay JQ3 port 4, port 6, port one 1 and port one 3 short circuits; and be connected to sensor-15V input-15V_SIN that powers; behind magnetic latching relay JQ3 port 8 and port 9 short circuits, and be connected to sensor-15V output-15V_SOUT that powers.
Electric-examination measuring tank of the present invention is realized power supply and power supply protection to the required power supply of oscillatory scanning infrared earth sensor by power supply power supply and power protecting circuit.In practical operation, before the start of electric-examination measuring tank, the oscillatory scanning infrared earth sensor supply voltage is in normal scope, the start of electric-examination measuring tank, + 5V overcurrent sign OI_5, + 15V overcurrent sign OI_15,-15V overcurrent sign OI_-15, + 5V overvoltage sign OV_5, + 15V overvoltage sign OV_15 and-15V overvoltage sign OV_-15 is a high level, then three inputs are high level with the output terminal of door S1C, through twice of not gate S2A and not gate S2B oppositely after, the output signal of not gate S2B is a high level, described chip for driving MC1413 output+5V power supply drive signal SET+5, + 15V power supply drive signal SET+15 and-15V power supply drive signal SET-15 is a low level, make magnetic latching relay JQ1, the set coil conducting of magnetic latching relay JQ2 and magnetic latching relay JQ3, guard relay JQ1, magnetic latching relay JQ2 and magnetic latching relay JQ3 switch closure, feasible power supply input+5V_SIN and power supply output+5V_SOUT UNICOM, power supply input+15V_SIN and power supply output+15V_SOUT UNICOM, power supply input-15V_SIN and power supply output-15V_SOUT UNICOM, the sensor power supply is realized power supply, in above-mentioned described process, the output terminal of start back not gate S2C is a low level always, do not have the pulse negative edge to produce, thereby d type flip flop S3A can not move.In power supply process+5V overcurrent sign OI_5; + 15V overcurrent sign OI_15;-15V overcurrent sign OI_-15; + 5V overvoltage sign OV_5; + 15V overvoltage sign OV_15 and-has in the middle of the 15V overvoltage sign OV_-15 low level to take place; overcurrent or overvoltage phenomenon promptly take place; not gate S1A output terminal becomes low level by high level; make the asserts signal SET of not gate S2B output terminal output become low level; the variation of described not gate S1A output potential; make the output terminal of not gate S1C produce rising edge; d type flip flop S3A produces action; the electric potential signal that the D end of above-mentioned d type flip flop S3A connects is a high level; then output terminal Q output RST is a noble potential; described chip for driving MC1413 output terminal output+5V protection drive signal RST+5; + 15V protection drive signal RST+15 and-15V protection drive signal RST-15 is a low level; make magnetic latching relay JQ1; the resetting coil conducting of magnetic latching relay JQ2 and magnetic latching relay JQ3; magnetic latching relay JQ1; magnetic latching relay JQ2 and magnetic latching relay JQ3 switch disconnect; make power supply input+5V_SIN and power supply output+5V_SOUT disconnect; power supply input+15V_SIN and power supply output+15V_SOUT disconnect; power supply input-15V_SIN and power supply output-15V_SOUT disconnect; the protection of oscillatory scanning infrared earth sensor power cut-off, described circuit are connected to three inputs and the input end of door S1C the output terminal of d type flip flop S3A
Make outage keep producing the phaselocked loop protection,, must disconnect electric-examination measuring tank master switch, restart electric-examination measuring tank master switch then if make oscillatory scanning infrared earth sensor to power again.
Claims (7)
1, a kind of electric-examination measuring tank that is applicable to that oscillatory scanning infrared earth sensor test is used, include and be arranged on a plurality of interfaces on the housing and be installed in circuit board in the housing, it is characterized in that: the housing of electric-examination measuring tank is provided with 220V AC power interface, direct supply interface, sensor power switch, electric-examination measuring tank master switch, test interface, sensor supply current display unit, sensor signaling interface, sensor power interface, electric signal source device interface and industrial computer interface; Oscillatory scanning infrared earth sensor is coupled by sensor signaling interface and sensor power interface, and electric signal source device is coupled by the electric signal source device interface, and industrial computer is coupled by the industrial computer interface; Described circuit board is made up of level signal processing unit, signal source signal processing unit, the power supply of sensor power supply and holding circuit and electric-examination measuring tank power module.
2, electric-examination measuring tank according to claim 1, it is characterized in that: described electric-examination measuring tank receives 11 road signals by the oscillatory scanning infrared earth sensor input, wherein, the four tunnel is that the inner level signal, four tunnel of oscillatory scanning infrared earth sensor is that earth ripple differential signal and three tunnel is that machine is surveyed sweep signal;
The inner level signal of described four road oscillatory scanning infrared earth sensors is: first via level signal+27V, the second tunnel level signal-27V, Third Road level signal+10V, the four tunnel level signal-10V;
Described four road earth ripple differential signals are: first via earth ripple differential signal CH1_D, the second road earth ripple differential signal CH2_D, Third Road earth ripple differential signal CH3_D, the four road earth ripple differential signal CH4_D;
Described No. three machines are surveyed the sweep signal inflammation: machine is surveyed reference signal REF_M, machine and is surveyed direction signal SD_M, machine and survey clock signal clk _ M).
3, electric-examination measuring tank according to claim 1 is characterized in that: described electric-examination measuring tank receives 7 road signals by the electric signal source device input, and wherein, the four tunnel is that simulation earth ripple signal, three tunnel is the electrical measurement sweep signal;
Described four tunnel simulation earth ripple signals are: first via earth ripple signal CH1, the second road earth ripple signal CH2, Third Road earth ripple signal CH3, the four road earth ripple signal CH4;
Described three tunnel electrical measurement sweep signals are: electrical measurement reference signal REF_E, electrical measurement direction signal SD_E, electrical measurement clock signal clk _ E.
4, electric-examination measuring tank according to claim 1, it is characterized in that: the connection of the circuit of described the four tunnel level signal-10V is: the four tunnel level signal-10V is attached to isolator through resistance R 520 and resistance R 521, the common port of resistance R 520 and resistance R 521 is connected to resistance R 522, the other end of resistance R 522 is connected to the negative terminal of amplifier U24B, the anode of amplifier U24B is connected to isolator through resistance R 524, the output terminal of described amplifier U24B is attached to the negative terminal of amplifier U24B through resistance R 523 feedback, and through resistance R 525 be connected to the negative terminal of amplifier U24A and linear optical coupling OP18 3 input ends; The anode of described amplifier U24A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, simultaneously the output terminal of amplifier U24A be connected to linear optical coupling OP18 1 input end; 2 ends of linear optical coupling OP18 are connected to isolation+12VD through pull-up resistor R526,4 ends of linear optical coupling OP18 are connected to isolator, 5 ends of linear optical coupling OP18 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U25A, 6 ends of linear optical coupling OP18 are connected to amplifier U25A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP18 are vacant, do not connect any element; Described amplifier U25A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U25A is attached to the anode of amplifier U25A through resistance R 527 feedbacks simultaneously, and is connected to the anode of amplifier U25B through resistance R 528; The negative terminal of amplifier U25B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals-10V_T through capacitor C 504.
5, electric-examination measuring tank according to claim 1, it is characterized in that: the connection of the circuit of described first via level signal+27V is: first via level signal+27V is attached to isolator through resistance R 501 and resistance R 502, the common port of resistance R 501 and resistance R 502 is connected to resistance R 503, and the other end of resistance R 503 is connected to the negative terminal of amplifier U19A; The anode of described amplifier U19A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, and the output terminal of amplifier U19A is connected to 1 input end of linear optical coupling OP15 simultaneously; 2 ends of linear optical coupling OP15 are connected to isolation+12VD through pull-up resistor R506,4 ends of linear optical coupling OP15 are connected to isolator, 5 ends of linear optical coupling OP15 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U20A, 6 ends of linear optical coupling OP15 are connected to amplifier U20A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP15 are vacant, do not connect any element; Described amplifier U20A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U20A is attached to the anode of amplifier U20A through resistance R 504 feedbacks simultaneously, and is connected to the anode of amplifier U20B through resistance R 505; The negative terminal of amplifier U20B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals+27V_T through capacitor C 501.
6, electric-examination measuring tank according to claim 1, it is characterized in that: directly be connected to the input resistance R201 of buffer circuit after described first via earth ripple differential signal CH1_D signal is followed through amplifier U9B, resistance R 201 is connected to the negative terminal of amplifier U9A and 3 input ends of linear optical coupling OP5; The anode of described amplifier U9A is connected to isolator, and power positive end and negative terminal are connected to isolation+12VD and isolation-12VD respectively, and the output terminal of amplifier U9A is connected to 1 input end of linear optical coupling OP5 simultaneously; 2 ends of linear optical coupling OP5 are connected to isolation+12VD through pull-up resistor R202,4 ends of linear optical coupling OP5 are connected to isolator, 5 ends of linear optical coupling OP5 are connected to the ground of electric-examination measuring tank, and connect with the negative terminal of amplifier U10A, 6 ends of linear optical coupling OP5 are connected to amplifier U10A anode, 7 ends and 7 ends of circuit neutral line optocoupler OP5 are vacant, do not connect any element; Described amplifier U10A power positive end and negative terminal are connected to electric-examination measuring tank+12V and electric-examination measuring tank-12V respectively, and the output terminal of amplifier U10A is attached to the anode of amplifier U10A through resistance R 203 feedbacks simultaneously, and is connected to the anode of amplifier U10B through resistance R 204; The negative terminal of amplifier U10B and output terminal short circuit, and be connected to the ground of electric-examination measuring tank and outputs level signals CH1_D through capacitor C 201
0
7, electric-examination measuring tank according to claim 1, it is characterized in that: each terminal connection that described machine is surveyed reference signal REF_M is: the machine by the oscillatory scanning infrared earth sensor input is surveyed the negative terminal that reference signal REF_Mi is connected to the light emitting diode of digital optocoupler OP9, the anode of the light emitting diode of numeral optocoupler OP9 is connected to insulating power supply+5VD through pull-up resistor R301, the emitter of described digital optocoupler OP9 is connected to electric-examination measuring tank power supply ground, the collector of numeral optocoupler OP9 is connected to electric-examination measuring tank power supply+5V through pull-up resistor R302, and connect through the anode of resistance R 303 with comparer U17A, the negative terminal of comparer U17A connects the 2V reference voltage, the output terminal of comparer U17A connects behind pull-up resistor R304+5V, and with triode Q1, the base stage of triode Q2 connects, the collector of triode Q1 connects+5V, the grounded collector of triode Q2, the emitter of triode Q1 connects with the emitter of triode Q2, and union end output machine after resistance R 305 is surveyed reference signal REF_Mo output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610165439A CN100578260C (en) | 2006-12-20 | 2006-12-20 | Electro-detection case suitable for oscillatory scanning type infrared earth sensor testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610165439A CN100578260C (en) | 2006-12-20 | 2006-12-20 | Electro-detection case suitable for oscillatory scanning type infrared earth sensor testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1996050A true CN1996050A (en) | 2007-07-11 |
| CN100578260C CN100578260C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610165439A Expired - Fee Related CN100578260C (en) | 2006-12-20 | 2006-12-20 | Electro-detection case suitable for oscillatory scanning type infrared earth sensor testing |
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| Country | Link |
|---|---|
| CN (1) | CN100578260C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927983A (en) * | 2012-10-31 | 2013-02-13 | 北京控制工程研究所 | Method for protecting earth sensor probe under GEO (Geosynchronous Orbit) satellite pitch offset |
| CN106092145A (en) * | 2016-08-30 | 2016-11-09 | 南京理工大学 | A kind of silicon micro-gyroscope measure and control device separated based on gauge outfit plate |
-
2006
- 2006-12-20 CN CN200610165439A patent/CN100578260C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927983A (en) * | 2012-10-31 | 2013-02-13 | 北京控制工程研究所 | Method for protecting earth sensor probe under GEO (Geosynchronous Orbit) satellite pitch offset |
| CN102927983B (en) * | 2012-10-31 | 2015-07-08 | 北京控制工程研究所 | Method for protecting earth sensor probe under GEO (Geosynchronous Orbit) satellite pitch offset |
| CN106092145A (en) * | 2016-08-30 | 2016-11-09 | 南京理工大学 | A kind of silicon micro-gyroscope measure and control device separated based on gauge outfit plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100578260C (en) | 2010-01-06 |
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