CN208819048U - Temperature signals simulation output equipment - Google Patents
Temperature signals simulation output equipment Download PDFInfo
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- CN208819048U CN208819048U CN201821434998.6U CN201821434998U CN208819048U CN 208819048 U CN208819048 U CN 208819048U CN 201821434998 U CN201821434998 U CN 201821434998U CN 208819048 U CN208819048 U CN 208819048U
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Abstract
The utility model provides a kind of temperature signals simulation output equipment, which includes: voltage source module, adjustable resistance circuit and detection circuit；The both ends of detection circuit are connect with two terminals of the interface of output equipment respectively, measure the circuit parameter values for the detection device connecting with interface；One end of voltage source module and a terminal of interface connect, and the other end of voltage source module is connect with one end of adjustable resistance circuit, and the other end of adjustable resistance circuit and another terminal of interface connect；The output voltage of voltage source module is adjustable.Voltage source module, adjustable resistance circuit and detection device form series via, by changing the voltage value of voltage source module output and the resistance value size of adjustable resistance circuit, resistance value size between two terminals of the interface to change temperature signals simulation output equipment, realizes the continuous output of resistance value.
Description
Technical field
The utility model relates to field of medical device, more particularly, to temperature signals simulation output equipment.
Background technique
Physiological signal simulation is mainly used for the quality control of patient's multi-parameter monitor and technical training, temperature signals are normal
The one kind for the physiological signal seen, realization principle are the corresponding relationships using thermistor resistance value and temperature, are replaced with resistance value
The simulation of assigned temperature progress body temperature.
The method of the current most common temperature signals simulation output is precision resister or the use using several fixations
Potentiometer.Precision resister can simulate specific several temperature values, but can not achieve the continuous output of temperature value, and existing
Monitoring probe for detecting temperature wide variety, the corresponding resistance value of body temperature is not quite similar.It is continuous that resistance value is although able to achieve with potentiometer
Output, because potentiometer precision itself is not high, and as temperature change has a greater change, makes the body temperature simulated have larger mistake
Difference.
Utility model content
The utility model provides a kind of temperature signals mould for overcoming the above problem or at least being partially solved the above problem
Quasi- output equipment.
The utility model embodiment provides a kind of temperature signals simulation output equipment, and the output equipment includes: voltage source
Module, adjustable resistance circuit and detection circuit；
The both ends of the detection circuit are connect with two terminals of the interface of the output equipment respectively, and measurement connects with described
The circuit parameter values of the detection device of mouth connection；
One end of the voltage source module is connect with a terminal of the interface, the other end of the voltage source module with
One end of the adjustable resistance circuit connects, and the other end of the adjustable resistance circuit and another terminal of the interface connect
It connects；
The output voltage of the voltage source module is adjustable.
Wherein, the output equipment includes microprocessor control unit；
The microprocessor control unit communicates to connect respectively with the voltage source module and the adjustable resistance circuit；
The microprocessor control unit control changes the output voltage values and the adjustable resistance of the voltage source module
The resistance value of circuit.
Wherein, the voltage source module includes the DAC circuit with microprocessor control unit communication connection；
The ground terminal of the voltage source module is connect with a terminal of the interface, the voltage output of the DAC circuit
End is connect with one end of the adjustable resistance circuit；
The microprocessor control unit control adjusts the output voltage of the DAC circuit.
Wherein, the DAC circuit exports bipolar voltage.
Another embodiment of the utility model provides a kind of temperature signals simulation output equipment, and the output equipment includes voltage
Source module, detection circuit, first choice switch and the second selection switch；
The input terminal of the first choice switch is connect with a terminal of the interface of the output equipment, second selection
The input terminal of switch is connect with the another terminal of the interface；
The output end of the first choice switch and one end of the voltage source module or one end of the detection circuit
Connection；
It is described second selection switch output end and the voltage source module the other end or the detection circuit it is another
One end connection；
The circuit parameter values for the detection device that the detection circuit measurement is connect with the interface；
The output voltage of the voltage source module is adjustable.
Wherein, the voltage source module include DAC circuit, resistance, variable resistance, power supply, N-MOS field effect transistor and
Amplifier；
The power supply, the variable resistance, the N-MOS field effect transistor and the resistance are sequentially connected in series, described
The drain electrode of N-MOS field effect transistor is connect with one end of the variable resistance, the source electrode of the N-MOS field effect transistor with
One end of the resistance connects, and the other end of the resistance is connect with the ground terminal of the DAC circuit；
The voltage output end of the DAC circuit is connect with the positive input of the amplifier；
The reverse input end of the amplifier is connect with the source electrode of the N-MOS field effect transistor, the amplifier
Output end is connect with the grid of the N-MOS field effect transistor；
The both ends of the variable resistance also respectively after voltage follower circuit with first choice switch and described the
The output end connection of two selection switches.
Wherein, the output equipment further includes communicating to connect respectively with the DAC circuit, variable resistance and detection circuit
Microprocessor control unit；
The circuit parameter values of the detection device of measurement are sent to the microprocessor and control list by the detection circuit
Member；
The microprocessor control unit control changes the output voltage values of the DAC circuit and the electricity of the variable resistance
Resistance value.
Wherein, the output equipment includes voltage detecting circuit；
The both ends of the input terminal of the voltage detecting circuit are connect with the both ends of the variable resistance respectively, the voltage inspection
The output end of slowdown monitoring circuit is connect with the microprocessor control unit.
Wherein, the variable resistance includes the potentiometer and variable resistance circuit being connected in series or in parallel.
Wherein, the quantity of variable resistance circuit is two, and is the first variable resistance circuit and the second adjustable resistance circuit；
It connects after the potentiometer is in parallel with first variable resistance circuit with the second adjustable resistance circuit.
The utility model embodiment proposes that a kind of beneficial effect of temperature signals simulation output equipment includes:
The utility model embodiment proposes that a kind of temperature signals simulation output equipment, temperature signals simulation output equipment connect
When mouthful being externally connected to detection device, by change voltage source module output voltage value and adjustable resistance circuit resistance value or
Person changes the voltage value size of voltage source module output, to change two terminals of the interface of temperature signals simulation output equipment
Between resistance value size, realize the continuous output of resistance value, simulate different temperature signals to get to simulation temperature signals
Continuous accurate output.
Detailed description of the invention
Fig. 1 is according to a kind of structural schematic diagram of temperature signals simulation output equipment provided by the embodiment of the utility model；
Fig. 2 is a kind of circuit diagram of the embodiment of temperature signals simulation output equipment provided by the utility model；
Fig. 3 is a kind of structural representation of the another embodiment of temperature signals simulation output equipment provided by the utility model
Figure；
Fig. 4 is a kind of circuit diagram of the another embodiment of temperature signals simulation output equipment provided by the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Temperature signals simulation output equipment replaces the simulation of assigned temperature progress temperature signals by output resistance.Specifically
In use process, external detection device is connect by the interface of output equipment with the output equipment, and detection device includes constant current
Detection device and partial pressure detection device, constant current detection device measure the resistance value of the output equipment by exporting constant current, point
Detection device is pressed to measure the resistance value of the output equipment by output partial pressure.Temperature signals simulation output equipment generally uses several
Fixed precision resister can be with the adjustable potentiometer of resistance, but precision resister can not achieve the continuous defeated of resistance value
Out, although the adjustable potentiometer of resistance is able to achieve the continuous output of resistance value, but because itself precision is not high, and is become by temperature
The temperature signals that changing influences to simulate have large error.
In view of the above-mentioned problems, the utility model embodiment provides a kind of temperature signals simulation output equipment, temperature signals
Simulation output equipment includes voltage source module 100, adjustable resistance circuit 200 and detection circuit 300.
The both ends of detection circuit 300 are connect with two terminals of the interface of output equipment 400 respectively, measurement and interface 400
The circuit parameter values of the detection device of connection.
One end of voltage source module 100 is connect with a terminal of interface 400, the other end of voltage source module 100 with can
One end connection of resistance circuit 200 is adjusted, the other end of adjustable resistance circuit 200 is connect with another terminal of interface 400.
The output voltage of the voltage source module 100 is adjustable.
When the interface of temperature signals simulation output equipment is externally connected to detection device, voltage source module, adjustable resistance electricity
Road and detection device form series via, by changing the voltage value of voltage source module output and the resistance value of adjustable resistance circuit
Size realizes resistance value to change the resistance value size between two terminals of the interface of temperature signals simulation output equipment
Continuous output, simulate different temperature signals to get to simulation temperature signals continuous accurate output.
It is illustrated in figure 2 a kind of circuit diagram of the embodiment of body temperature simulation output equipment provided by the utility model, by Fig. 2
It is found that output equipment provided by the embodiment of the utility model includes microprocessor control unit 500.The microprocessor control unit
500 communicate to connect respectively with voltage source module 100, adjustable resistance circuit 200 and detection circuit 300.
The circuit parameter values of the detection device of measurement are sent to microprocessor control unit 500 by detection circuit 300.Micro- place
It manages the control of device control unit 500 and changes the output voltage values of voltage source module 100 and the resistance value of adjustable resistance circuit 200.
Voltage value that microprocessor control unit 500 is exported according to the circuit parameter values of detection device, voltage source module and
The resistance value of adjustable resistance circuit determines the resistance value of output equipment output.The interface 400 of output equipment is externally connected to detection
When equipment, voltage source module 100, adjustable resistance circuit 200 and detection device form series via, according to the electricity of the series via
The resistance value of the equivalent resistance between two terminals of interface is calculated in road parameter, and the resistance value of the equivalent resistance is that output equipment is defeated
Resistance value out.
Many electronic components are influenced by temperature change in circuit, be will cause the temperature signals that output equipment simulates and are had
Large error, for above situation, voltage source module 100 provided by the embodiment of the utility model includes DAC circuit 110.Voltage
The ground terminal of source module 100 is connect with a terminal of interface 400, the voltage output end and adjustable resistance circuit 200 of DAC circuit
One end connection, microprocessor control unit 500 control adjustment DAC circuit output voltage.DAC circuit exports bipolarity electricity
Pressure.
Voltage source module selects the DAC device insensitive to environment temperature, the voltage of DAC circuit output can for positive pressure or
Negative pressure, the body temperature analog signal stability for exporting temperature signals simulation output equipment is good, precision is high, range is wide, and is not required to
Monitor environment temperature.
It is illustrated in figure 3 a kind of structural frames of the another embodiment of body temperature simulation output equipment provided by the utility model
Figure, from the figure 3, it may be seen that a kind of body temperature simulation output equipment provided by the embodiment of the utility model, including voltage source module 100, inspection
Slowdown monitoring circuit 300, first choice switch 510 and the second selection switch 520.
The input terminal of first choice switch 510 is connect with a terminal A of interface 400, the input terminal of the second selection switch 520
It is connect with the another terminal B of interface 400.The output end of first choice switch 510 and one end of voltage source module 100 or detection
One end of circuit 300 connects, the output end of the second selection switch 520 and the other end or detection circuit of voltage source module 100
300 other end connection.
Detection circuit 300 measures the circuit parameter values of detection device connecting with interface 400, voltage source module 100 it is defeated
Voltage is adjustable out.
When the interface of temperature signals simulation output equipment is externally connected to detection device, pass through the first choice switch 510
Carry out detection process and simulation output process separately with the second selection switch 520, detection circuit measurement detection in detection process
The circuit parameter of equipment passes through voltage value size (the i.e. interface both ends for changing voltage source module output during simulation output
Voltage value size), to change the resistance value size between two terminals of the interface of temperature signals simulation output equipment, realize
The continuous output of resistance value simulates different temperature signals to get the continuous accurate output of the temperature signals of simulation is arrived.
It is as shown in Figure 4 respectively a kind of circuit of the another embodiment of body temperature simulation output equipment provided by the utility model
Figure, as shown in Figure 4, in output equipment provided by the embodiment of the utility model, voltage source module includes DAC circuit 110, resistance
120, variable resistance 130, power supply 140, N-type metal-oxide semiconductor (MOS) (N-MOS, N-metal oxide
Semiconductor) field effect transistor 150 and amplifier 160.
Power supply 140, variable resistance 130, N-MOS field effect transistor 150 and resistance 120 are sequentially connected in series, wherein N-
The drain electrode of MOS field effect transistor 150 is connect with one end of variable resistance 130, the source electrode of N-MOS field effect transistor 150 with
One end of resistance 120 connects, and the other end of resistance 120 is connect with the ground terminal of DAC circuit 110.
The voltage output end of DAC circuit 110 is connect with the positive input of amplifier 160, the reversed input of amplifier 160
End is connect with the source electrode of N-MOS field effect transistor 150, output end and the N-MOS field effect transistor 150 of amplifier 160
Grid connection.
It is also selected after voltage follower circuit 530 with first choice switch 510 and second respectively at the both ends of variable resistance 130
Select the output end connection of switch 520.
Output voltage by changing DAC circuit 110 changes the electric current of resistance 120,120 phase of variable resistance 130 and resistance
Mutually series connection, electric current is equal, and the electric current of variable resistance 130 can be obtained, and can be obtained according to the resistance value of variable resistance 130 can power transformation
The voltage at 130 both ends is hindered, which is the output voltage of voltage source module 100, which passes through voltage follower circuit
It is the voltage at 400 both ends of interface after 530 outputs.
Further, a kind of body temperature simulation output equipment provided by the embodiment of the utility model includes that microprocessor control is single
Member 500.The microprocessor control unit 500 communicates to connect respectively with DAC circuit 110, variable resistance 130 and detection circuit 300.
The circuit parameter values of the detection device of measurement are sent to microprocessor control unit 500 by detection circuit 300.Micro- place
It manages the control of device control unit 500 and changes the output voltage values of DAC circuit 110 and the resistance value of variable resistance 130.
Microprocessor control unit 500 is according to the circuit parameter values of detection device, the resistance value of resistance 120, DAC circuit 110
The voltage value of output and the resistance value of variable resistance 130 determine the resistance value of output equipment output.
When the interface 400 of output equipment is externally connected to detection device, the electric current of the first measuring and inspecting apparatus of detection circuit 300
Parameter value is changed output voltage, that is, interface both ends voltage of voltage source module 100 by control, two, interface ends is calculated
The resistance value of equivalent resistance between son, the resistance value of the equivalent resistance are the resistance value of output equipment output.
Variable resistance 130 includes the potentiometer and variable resistance circuit being connected in series or in parallel.It can be according to body temperature mould
The range flexible choice potentiometer for the output resistance that quasi- module needs and the resistance value of variable resistance circuit, improve body temperature simulation
The precision of circuit output resistance value while guaranteeing the precision of the output resistance of equipment, also achieves the resistance value of equipment
Continuous output.
When the negligible amounts of potentiometer and variable resistance circuit, connection relationship are simple, body temperature analog module output resistance
Precision raising it is limited, for said circumstances, as shown in Figure 4, a kind of temperature signals mould provided by the embodiment of the utility model
Quasi- output equipment, variable resistance 130 include potentiometer 131, the first variable resistance circuit 132 and the second adjustable resistance circuit 133,
Potentiometer 131 is connected with after 132 parallel connection of the first variable resistance circuit with the second adjustable resistance circuit 133.Variable resistance 130 exports
The value R of resistanceCDAre as follows:
Wherein R2、R3And R4Respectively potentiometer 131, the first variable resistance circuit 132 and the second adjustable resistance circuit 133
Resistance value.
The resistance R of variable resistance 130CDCan resistance value according to demand range, flexible choice potentiometer 131, first can
The resistance value of power transformation resistance circuit 132 and the second adjustable resistance circuit 133.
Further, which further includes voltage detecting circuit 600, and the two of the input terminal of voltage detecting circuit 600
End is connect with the both ends of variable resistance 130 respectively, and the output end and microprocessor control unit 500 of voltage detecting circuit 600 connect
It connects, the voltage at the judgement measurement of microprocessor control unit 500 130 both ends of variable resistance, if with the voltage value phase being calculated
Deng.
The utility model embodiment additionally provides a kind of output method according to above-mentioned temperature signals simulation output equipment, should
Method includes:
Measure the circuit parameter values for the detection device connecting with interface；According to the circuit parameter values of detection device, voltage source
The voltage value and the resistance value of adjustable resistance circuit or the circuit parameter values and voltage source module of detection device of module output are defeated
Voltage value out determines the resistance value of output equipment output.
The detection device of output equipment connection includes different type, and the type of detection device includes constant current detection device and divides
Press detection device.For above situation, a kind of output method of temperature signals simulation output equipment provided by the utility model is surveyed
Before the circuit parameter values for measuring the detection device, when changing the size with the resistance value of the concatenated circuit of detection device or voltage value
The current value of measuring and inspecting apparatus output judges the detection device for constant current detection device when current value is constant, current value changes
When judge the detection device for divide detection device.
Specifically, as shown in Fig. 2, the both ends of detection circuit 300 are held with A, B of the interface of output equipment 400 two respectively
Son connection.When two terminals of A, B for the interface 400 for having detection device access output equipment, changes voltage source module 100 and export
Voltage, flow through adjustable resistance circuit 200 electric current it is constant when, illustrate the access detection device be constant current detection device；Stream
When crossing the curent change of adjustable resistance circuit 200, illustrate the detection device of the access for partial pressure detection device.
When the type difference of the detection device of interface connection, the type of the circuit parameter for the detection device for needing to measure is not
Together, a kind of temperature signals simulation output equipment provided by the embodiment of the utility model detects that detection device is that constant current detection is set
When standby, the detection device circuit parameter values of measurement are output electric current I.When detecting detection device to divide detection device, survey
The detection device circuit parameter values of amount are output voltage U and internal resistance R.
Specifically, as shown in Fig. 2, detection circuit measures the voltage between two terminals of A, B of interface 400, when access
When detection device is constant current detection device:
In detection process, it can calculate:
Wherein, RbFor the resistance value of adjustable resistance circuit 200 in detection process, UCAFor adjustable resistance circuit in detection process
200 both end voltage value, UBCIt is the voltage value of microprocessor control unit control DAC circuit output in detection process, UBAIt is inspection
The both end voltage value of the output end for the partial pressure detection device that detection circuit 300 detects during survey, which can be with
Measure the positive pressure or negative pressure of two endpoints of B, A.
Voltage U during simulation output, between A, BBA'=UCA′+UBC'=I × Rb′+UBC', wherein UCA' it is simulation
The both end voltage value of adjustable resistance circuit 200, U during outputBC' controlled for microprocessor control unit during simulation output
The voltage value that DAC circuit 110 exports, Rb' for the resistance value of adjustable resistance circuit 200 during simulation output, it can it acquires
A, the resistance R between B two o'clockABAs temperature signals of output equipment simulation output:
When the detection device of access is partial pressure detection device:
In detection process, control changes the resistance value R of adjustable resistance circuit 200bFor infinitely great (open circuit), measure at this time B,
Voltage value is the output voltage U of detection device between A two o'clock.Control changes the resistance value R of adjustable resistance circuit 200bIt is solid
Determine resistance value, flows through resistance RbElectric current:
Then calculate the internal resistance of detection device
During simulation output, control changes the resistance value R of adjustable resistance circuit 200b' it is 0 ohm, U at this timeBA'=
UBC', adjust UBC' the different temperature signals of value analog, it can acquire the resistance R between A, B two o'clockABAs output is set
The temperature signals of standby simulation output:
Further, for output equipment during simulation output, it is defeated that output equipment simulation can be monitored in real time in detection circuit
Whether the size of body temperature analog signal out, real-time judge body temperature analog signal are correct.
Specifically, as shown in figure 4, will test process and simulation by first choice switch 510 and the second selection switch 520
When output process separately carries out, in detection process, the output end of first choice switch 510 is connect with one end of detection circuit 300,
The output end of second selection switch 520 is connect with the other end of detection circuit 300, which judges interface connection
The type of detection device and the circuit parameter values for measuring the detection device.I.e. detection circuit 300 detects that detection device is constant current
When detection device, the circuit parameter values of the detection device of measurement are output electric current I.Detection circuit 300 detects detection device
When to divide detection device, the detection device circuit parameter values of measurement are output voltage U and internal resistance R.
During simulation output, the output end of first choice switch 510 is connect with one end of voltage source module 100, and second
The output end of selection switch 520 is connect with the other end of voltage source module 100.
DAC circuit 110 controls the electric current of the series circuit of resistance 120 and variable resistance 130:
Wherein, UDACFor the output voltage of DAC circuit 110, R1For the resistance value size of resistance 120.
The tie point C point and power supply 140 of N-MOS field effect transistor 150 and variable resistance 130 and variable resistance 130
Voltage between tie point D point are as follows:
Because C point, D point are voltage follow output, UCD=UAB。
Microprocessor control unit 500 is according to the output voltage of DAC circuit 110, the resistance value and variable resistance of resistance 120
130 computing the resistor value determines the output voltage of output equipment, and detection circuit 600 detects voltage between C point and D point, can real-time school
Whether the quasi- output voltage calculated is correct.I ' and/or R is adjusted when abnormalCD, keep output normal.
When detection device is constant current detection device, the resistance between A, B two o'clock is acquired:
When detection device is partial pressure detection device, the resistance between A, B two o'clock is acquired:
The RABThe as temperature signals of output equipment simulation output.
Finally, the present processes are only preferable embodiment, it is not intended to limit the protection scope of the utility model.
Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this reality
Within novel protection scope.
Claims (10)
1. a kind of temperature signals simulation output equipment, which is characterized in that the output equipment includes: voltage source module, adjustable electric
Resistance circuit and detection circuit；
The both ends of the detection circuit are connect with two terminals of the interface of the output equipment respectively, and measurement connects with the interface
The circuit parameter values of the detection device connect；
One end of the voltage source module is connect with a terminal of the interface, the other end of the voltage source module with it is described
One end of adjustable resistance circuit connects, and the other end of the adjustable resistance circuit is connect with another terminal of the interface；
The output voltage of the voltage source module is adjustable.
2. output equipment according to claim 1, which is characterized in that the output equipment includes that microprocessor control is single
Member；
The microprocessor control unit communicates to connect respectively with the voltage source module and the adjustable resistance circuit；
The microprocessor control unit control changes the output voltage values and the adjustable resistance circuit of the voltage source module
Resistance value.
3. output equipment according to claim 2, which is characterized in that the voltage source module includes and the microprocessor
The DAC circuit of control unit communication connection；
The ground terminal of the voltage source module is connect with a terminal of the interface, the voltage output end of the DAC circuit with
One end of the adjustable resistance circuit connects；
The microprocessor control unit control adjusts the output voltage of the DAC circuit.
4. output equipment according to claim 3, which is characterized in that the DAC circuit exports bipolar voltage.
5. a kind of temperature signals simulation output equipment, which is characterized in that the output equipment includes voltage source module, detection electricity
Road, first choice switch and the second selection switch；
The input terminal of the first choice switch is connect with a terminal of the interface of the output equipment, the second selection switch
Input terminal connect with the another terminal of the interface；
The output end of the first choice switch is connect with one end of one end of the voltage source module or the detection circuit；
The output end and the other end of the voltage source module or the other end of the detection circuit of the second selection switch
Connection；
The circuit parameter values for the detection device that the detection circuit measurement is connect with the interface；
The output voltage of the voltage source module is adjustable.
6. output equipment according to claim 5, which is characterized in that the voltage source module include DAC circuit, resistance,
Variable resistance, power supply, N-MOS field effect transistor and amplifier；
The power supply, the variable resistance, the N-MOS field effect transistor and the resistance are sequentially connected in series, the N-MOS
The drain electrode of field effect transistor is connect with one end of the variable resistance, the source electrode of the N-MOS field effect transistor with it is described
One end of resistance connects, and the other end of the resistance is connect with the ground terminal of the DAC circuit；
The voltage output end of the DAC circuit is connect with the positive input of the amplifier；
The reverse input end of the amplifier is connect with the source electrode of the N-MOS field effect transistor, the output of the amplifier
End is connect with the grid of the N-MOS field effect transistor
It is also selected after voltage follower circuit with first choice switch and described second respectively at the both ends of the variable resistance
Select the output end connection of switch.
7. output equipment according to claim 6, which is characterized in that the output equipment further include with the DAC circuit,
The microprocessor control unit that variable resistance and detection circuit communicate to connect respectively；
The circuit parameter values of the detection device of measurement are sent to the microprocessor control unit by the detection circuit；
The microprocessor control unit control changes the output voltage values of the DAC circuit and the resistance of the variable resistance
Value.
8. output equipment according to claim 7, which is characterized in that the output equipment includes voltage detecting circuit；
The both ends of the input terminal of the voltage detecting circuit are connect with the both ends of the variable resistance respectively, the voltage detecting electricity
The output end on road is connect with the microprocessor control unit.
9. output equipment according to claim 6, which is characterized in that the variable resistance includes being connected in series or in parallel
Potentiometer and variable resistance circuit.
10. output equipment according to claim 9, which is characterized in that the quantity of variable resistance circuit is two, and is the
One variable resistance circuit and the second adjustable resistance circuit；
It connects after the potentiometer is in parallel with first variable resistance circuit with the second adjustable resistance circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434998.6U CN208819048U (en) | 2018-09-03 | 2018-09-03 | Temperature signals simulation output equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434998.6U CN208819048U (en) | 2018-09-03 | 2018-09-03 | Temperature signals simulation output equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208819048U true CN208819048U (en) | 2019-05-03 |
Family
ID=66275745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821434998.6U Active CN208819048U (en) | 2018-09-03 | 2018-09-03 | Temperature signals simulation output equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208819048U (en) |
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2018
- 2018-09-03 CN CN201821434998.6U patent/CN208819048U/en active Active
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