Pressure sensors
Differential pressure transmitter (voltage output)
MiniCell Series
Symbols and terms
1)
Storage temperature range Tst
A storage of the pressure sensor within the temperature range Tst,min up to Tst,max and without applied pressure and
supply voltage will not affect the performance of the pressure sensor.
2)
3)
Operating temperature range Ta
An operation of the pressure sensor within the temperature range Ta,min up to Ta,max will not affect the performance of the
pressure sensor.
Compensated temperature range Tc
While operating the pressure sensor within the temperature range Tc,min up to Tc,max, the deviation of the output signal will
not exceed the temperature specific measurement error. Out of the compensated temperature range, the deviations may
increase.
4)
5)
6)
Supply voltage VCC
VCC,max is the maximum of permissible supply voltage, which can be applied without damages.
VCC,min is the minimum of required supply voltage, which has to be applied for normal operation.
Supply current ICC
ICC, is the maximum of current required to run the pressure sensor. Additional to the supply current ICC the signal output
current IA is working.
Signal output current IA , Load resistor RL
IA,max is the maximum permissible sink current of the signal output. The signal output current is depending on the voltage
of the output signal and the load resistor RL. Exceeding (e.g. short circuit) of the signal output current IA may cause
irreparable damages.
7)
8)
9)
Overvoltage Vov
Maximum voltage being applied in any polarity to all contact pins without damaging the pressure sensor.
Output signal at sensor failure VERR
Output voltage of the sensor, if the signal conditioner detects a serious internal functional error.
Offset VA0
The offset VA0 is the signal output VA(p = 0) at zero pressure. The value is related to the supply voltage VCC
.
One-sided output:
VA0 = 0.1 VCC
Symmetrical output: VA0 = 0.5 VCC
10)
11)
Signal at rated pressure Vpr
The value is related to the supply voltage VCC
.
One-sided output:
VFS = FS = VA(pr) – VA0 = 0.9 VCC
Non-linearity L (including pressure hysteresis)
The non-linearity is the deviation of the real sensor characteristic VA = f(p) from the ideal straight line.
It can be approximated by a polynomial of second order, with the maximum at pM = pr / 2 .
The equation to calculate the non-linearity is:
VA (px ) VA0 px
VA (pr ) VA0 pr
L
12)
13)
14)
15)
Response time t10-90
Delay between a pressure change (10 ... 90% pr) and the corresponding signal output change (10 ... 90% FS) based on
theoretical estimations.
Rated pressure pr
Within the rated pressure range 0 up to pr (symmetrical output: ±pr) the signal output characteristic corresponds to this
specification. Rated pressure is defined as: pr = p1 – p2.
Overpressure pOV
1000 pressure cycles within the pressure range 0 up to pov will not affect the performance of the pressure sensor.
Overpressure is defined as: pov = p1 – p2.
Burst pressure pburst
Bust pressure pburst is the maximum of permissible pressure applied without causing leackage of the sensor.
Measurement performance of the sensor may be affected. Bust pressure is defined as: pburst = p1 – p2.
TPS PRS T PD
2021-10-21
Please read Cautions and warnings and
Page 7 of 11
Important notes at the end of this document.
5秒后页面跳转
STM32H743技术深度剖析与应用案例探索
LM321中文资料解析：引脚功能介绍、技术特点、技术特性分析
74HC14芯片资料介绍：性能特性分析、引脚介绍
LM1875芯片手册：功放参数分析、引脚说明、电路设计要点
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
