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| 型号： | SENSOREMULATOREVM |
| 厂商： | Texas Instruments |
| 文件页数： | 17/47页 |
| 文件大小： | 0K |
| 描述： | EMULATOR SENSOR |
| 标准包装： | 1 |
| 传感器类型： | 激磁电压电桥传感器仿真器 |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 产品目录页面： | 1078 (CN2011-ZH PDF) |
| 相关产品： | PGA309AIPWTG4-ND - IC PROG SNSR COND V-OUT 16-TSSOP PGA309AIPWRG4-ND - IC PROG SNSR COND V-OUT 16-TSSOP PGA309AIPWR-ND - IC PROG SNSR COND V-OUT 16-TSSOP 296-16726-6-ND - SMART PROGRAMMABLE SENSOR 296-16726-2-ND - SMART PROGRAMMABLE SENSOR 296-16726-1-ND - SMART PROGRAMMABLE SENSOR |
| 其它名称： | 296-20990 |
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3.0 Changing the Programmable Range of the Emulator
Figure 3.1 illustrates how the range of the bridge emulator can be adjusted by putting a resistor in parallel with R101 and R104. This needs to be
done for each channel of the emulator (11 channels x 2 resistors = 22 resistors total). The examples illustrates how the range is increased using a
1k Ω parallel resistor. In general, it is best to select a parallel resistance value that scales your range so that the full scale output of the emulator is
slightly larger than what is required for your emulator. Scaling the emulator in this manner will provide the optimal resolution and lowest noise. Note
that holes are provided for a parallel through-hole resistor to simplify the process of adjusting the emulator scale.
R101
5.0V
Input To Bridge
Vexc
(Excitation voltage)
R8
10k
10k
2.5V
R102
200 ohm
2.526V
Wiper at top
to
2.475V
Wiper at bottom
Output of Sensor
Vin+ to Signal
Conditioning Chip
R103
10 ohm
R9
10k
R104
10k
V DIF = 26mV
to
-25mV
2.5V
Output of Sensor
Vin- to Signal
Conditioning Chip
Figure 3.0: Default Range
Figure 3.1: Adjusted Range
Positive full scale of the emulator Negative full scale of the emulator
Positive full scale of the emulator
Negative full scale of the emulator
R104 := 10 ? 10
R101 := 10 ? 10
R104 := 10 ? 10
R101 := 10 ? 10
Vexc := 5
3
R102 := 200
3
Vexc := 5
3
R102 := 200
3
Vexc := 5
R104 := 909.1
R102 := 200
R101 := 909.1
Vexc := 5
R104 := 909.1
R102 := 200
R101 := 909.1
R102a := 200 Wiper position at top of POT
R102a := 0
Wiper position at bottom of POT
R102a := 200 W iper position at to p of POT
R102a := 0
W iper positio n at bottom of POT
R103 := 10
Pot set to maximum Resistance
R103 := 0
Pot set to Minimum Resistance
R103 := 10
Po t set to maximum Resistance
R103 := 0
Pot set to Minimum Resistance
Vdif :=
Vexc ? ( R104 + R103 + R102a )
R101 + R104 + R103 + R102
?
Vexc
2
Vdif :=
Vexc ? ( R104 + R103 + R102a )
R101 + R104 + R103 + R102
?
Vexc
2
Vdif :=
Vexc ? ( R104 + R103 + R102a )
R101 + R104 + R103 + R102
?
Vexc
2
Vdif :=
Vexc ? ( R104 + R103 + R102a )
R101 + R104 + R103 + R102
?
Vexc
2
Vdif = 0.026
Positive full scale output of emulator
Vdif = ? 0.025
Positive full scale output of emulator
Vdif = 0.259
Positive full scale output of emulator
Vdif = ? 0.248
N egative full scale output of emulator
SBOA102A
January 2005
Sensor-Emulator-EVM
System Reference Guide
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SENSOR-EXP-EVB | 功能描述:EFM32ZG - Sensor Board 制造商:silicon labs 系列:- 零件状态:过期 配件类型:传感器板 配套使用产品/相关产品:EFM32ZG 标准包装:1 |
| SENSOR-GREY-APD-3/4-CLOSED | 制造商:ITT Interconnect Solutions 功能描述: |
| SENSOR-PUCK | 功能描述:Si1147, Si7013 - Humidity, Optical, Temperature Sensor Evaluation Board 制造商:silicon labs 系列:- 零件状态:有效 传感器类型:湿度，光学，温度 感应范围:- 接口:RF 灵敏度:- 电压 - 电源:- 嵌入式:是，MCU，32 位 所含物品:板 使用的 IC/零件:Si1147，Si7013 标准包装:1 |
| SENSORS SAMPLE KIT | 功能描述:SAMPLE KIT 制造商:ametherm 系列:* 零件状态:有效 标准包装:1 |
| SENSOR-T1-10 | 制造商:Eaton Corporation 功能描述:Sensor with 1 Temperature Probe |
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